Re: [time-nuts] OT, looking for a good science forum
Hi Platinum RTD's are a pretty good bet for -80C, they hold up well down there. For calibration, ammonia and acetylene both have triple points in the vicinity. I'd probably try ammonia first, but not for any good reason. Triple point cells aren't all that hard to make. Never tried it with something flammable ... Bob On Jan 26, 2013, at 12:32 AM, Chris Albertson albertson.ch...@gmail.com wrote: This is by definition Off Topic I'm looking for a forum where people are about as technically competent as here but where an amateur scientist can ask questions like 1) What is a cost effective way to measure temperatures at around -80C (about the temperature of dry ice) Thermocouples, NTC thermisters? 2) Is brand X microscope as good as brand Y, they look identical to me. All I'm finding is either places that cover science news or some forum filled with nonsense about cloning dinosaurs and time travel. -- Chris Albertson Redondo Beach, California ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] OT, looking for a good science forum
Il 2013-01-26 14:58 Bob Camp ha scritto: Hi Platinum RTD's are a pretty good bet for -80C, they hold up well down there. For calibration, ammonia and acetylene both have triple points in the vicinity. I'd probably try ammonia first, but not for any good Doesn't acetylene have a bad habit of dissociate when pure liquid? Fabio. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] OT, looking for a good science forum
For microscopes and all related topics, the Yahoo Microscope Group is very knowledgeable. It has over 3500 members now. -John = This is by definition Off Topic I'm looking for a forum where people are about as technically competent as here but where an amateur scientist can ask questions like 1) What is a cost effective way to measure temperatures at around -80C (about the temperature of dry ice) Thermocouples, NTC thermisters? 2) Is brand X microscope as good as brand Y, they look identical to me. All I'm finding is either places that cover science news or some forum filled with nonsense about cloning dinosaurs and time travel. -- Chris Albertson Redondo Beach, California ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] time-nuts Digest, Vol 102, Issue 100
Hi Chris, Try pinging the folks on this forum phy...@antennex.com which is oriented towards Theoretical Physics, or email Kirk T McDonald at Princeton directly and see if he can recommend one for you. Russ K0WFS -- Message: 2 Date: Fri, 25 Jan 2013 21:32:58 -0800 From: Chris Albertson albertson.ch...@gmail.com To: Discussion of precise time and frequency measurement time-nuts@febo.com Subject: [time-nuts] OT, looking for a good science forum Message-ID: cabbxvhsyrd-jgtrftbpkef+az5alv5viswjoklolaeu3vgq...@mail.gmail.com Content-Type: text/plain; charset=ISO-8859-1 This is by definition Off Topic I'm looking for a forum where people are about as technically competent as here but where an amateur scientist can ask questions like 1) What is a cost effective way to measure temperatures at around -80C (about the temperature of dry ice) Thermocouples, NTC thermisters? 2) Is brand X microscope as good as brand Y, they look identical to me. All I'm finding is either places that cover science news or some forum filled with nonsense about cloning dinosaurs and time travel. -- Chris Albertson Redondo Beach, California ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] OT, looking for a good science forum
Hi Sounds like a good reason to avoid it. Bob On Jan 26, 2013, at 10:28 AM, Fabio Eboli fabi...@quipo.it wrote: Il 2013-01-26 14:58 Bob Camp ha scritto: Hi Platinum RTD's are a pretty good bet for -80C, they hold up well down there. For calibration, ammonia and acetylene both have triple points in the vicinity. I'd probably try ammonia first, but not for any good Doesn't acetylene have a bad habit of dissociate when pure liquid? Fabio. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] OT, looking for a good science forum
Trying to play with liquid acetylene is like juggling operating chainsaws. -John Il 2013-01-26 14:58 Bob Camp ha scritto: Hi Platinum RTD's are a pretty good bet for -80C, they hold up well down there. For calibration, ammonia and acetylene both have triple points in the vicinity. I'd probably try ammonia first, but not for any good Doesn't acetylene have a bad habit of dissociate when pure liquid? Fabio. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] OT, looking for a good science forum
If the intent is surface mount work, get an old BL Stereozoom 3. I'd suggest getting one with any attached illuminator, even a broken one, since the fitting to hold the illuminator is about $30. Later model stereozooms had plastic parts in the focus mechanism. If you need more magnification, you can always get stronger occulars. -Original Message- From: J. Forster j...@quikus.com Sender: time-nuts-boun...@febo.com Date: Sat, 26 Jan 2013 09:04:59 To: Discussion of precise time and frequency measurementtime-nuts@febo.com Reply-To: j...@quikus.com, Discussion of precise time and frequency measurement time-nuts@febo.com Subject: Re: [time-nuts] OT, looking for a good science forum For microscopes and all related topics, the Yahoo Microscope Group is very knowledgeable. It has over 3500 members now. -John = This is by definition Off Topic I'm looking for a forum where people are about as technically competent as here but where an amateur scientist can ask questions like 1) What is a cost effective way to measure temperatures at around -80C (about the temperature of dry ice) Thermocouples, NTC thermisters? 2) Is brand X microscope as good as brand Y, they look identical to me. All I'm finding is either places that cover science news or some forum filled with nonsense about cloning dinosaurs and time travel. -- Chris Albertson Redondo Beach, California ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] OT, looking for a good science forum
I did a Google search and came across sciencenuts.org, but content was limited If you have no success, maybe science-nuts could be created. There would be at least two of us joining. - Original Message - From: Chris Albertson albertson.ch...@gmail.com To: Discussion of precise time and frequency measurement time-nuts@febo.com Sent: Friday, January 25, 2013 9:32:58 PM Subject: [time-nuts] OT, looking for a good science forum This is by definition Off Topic I'm looking for a forum where people are about as technically competent as here but where an amateur scientist can ask questions like 1) What is a cost effective way to measure temperatures at around -80C (about the temperature of dry ice) Thermocouples, NTC thermisters? 2) Is brand X microscope as good as brand Y, they look identical to me. All I'm finding is either places that cover science news or some forum filled with nonsense about cloning dinosaurs and time travel. -- Chris Albertson Redondo Beach, California ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] OT, looking for a good science forum
Maybe wrong search words; There may be pearls in here: http://www.goedonline.com/101-websites-for-science-teachers Don DARRELL ROBINSON I did a Google search and came across sciencenuts.org, but content was limited If you have no success, maybe science-nuts could be created. There would be at least two of us joining. - Original Message - From: Chris Albertson albertson.ch...@gmail.com To: Discussion of precise time and frequency measurement time-nuts@febo.com Sent: Friday, January 25, 2013 9:32:58 PM Subject: [time-nuts] OT, looking for a good science forum This is by definition Off Topic I'm looking for a forum where people are about as technically competent as here but where an amateur scientist can ask questions like 1) What is a cost effective way to measure temperatures at around -80C (about the temperature of dry ice) Thermocouples, NTC thermisters? 2) Is brand X microscope as good as brand Y, they look identical to me. All I'm finding is either places that cover science news or some forum filled with nonsense about cloning dinosaurs and time travel. -- Chris Albertson Redondo Beach, California ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. -- Neither the voice of authority nor the weight of reason and argument are as significant as experiment, for thence comes quiet to the mind. De Erroribus Medicorum, R. Bacon, 13th century. If you don't know what it is, don't poke it. Ghost in the Shell Dr. Don Latham AJ7LL Six Mile Systems LLP 17850 Six Mile Road POB 134 Huson, MT, 59846 VOX 406-626-4304 www.lightningforensics.com www.sixmilesystems.com ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] OT, looking for a good science forum
Or perhaps: http://www.scienceforums.net/forum/78-amateur-science/ Don Don Latham Maybe wrong search words; There may be pearls in here: http://www.goedonline.com/101-websites-for-science-teachers Don DARRELL ROBINSON I did a Google search and came across sciencenuts.org, but content was limited If you have no success, maybe science-nuts could be created. There would be at least two of us joining. - Original Message - From: Chris Albertson albertson.ch...@gmail.com To: Discussion of precise time and frequency measurement time-nuts@febo.com Sent: Friday, January 25, 2013 9:32:58 PM Subject: [time-nuts] OT, looking for a good science forum This is by definition Off Topic I'm looking for a forum where people are about as technically competent as here but where an amateur scientist can ask questions like 1) What is a cost effective way to measure temperatures at around -80C (about the temperature of dry ice) Thermocouples, NTC thermisters? 2) Is brand X microscope as good as brand Y, they look identical to me. All I'm finding is either places that cover science news or some forum filled with nonsense about cloning dinosaurs and time travel. -- Chris Albertson Redondo Beach, California ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. -- Neither the voice of authority nor the weight of reason and argument are as significant as experiment, for thence comes quiet to the mind. De Erroribus Medicorum, R. Bacon, 13th century. If you don't know what it is, don't poke it. Ghost in the Shell Dr. Don Latham AJ7LL Six Mile Systems LLP 17850 Six Mile Road POB 134 Huson, MT, 59846 VOX 406-626-4304 www.lightningforensics.com www.sixmilesystems.com ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. -- Neither the voice of authority nor the weight of reason and argument are as significant as experiment, for thence comes quiet to the mind. De Erroribus Medicorum, R. Bacon, 13th century. If you don't know what it is, don't poke it. Ghost in the Shell Dr. Don Latham AJ7LL Six Mile Systems LLP 17850 Six Mile Road POB 134 Huson, MT, 59846 VOX 406-626-4304 www.lightningforensics.com www.sixmilesystems.com ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] OT, looking for a good science forum
Message: 4 Date: Sat, 26 Jan 2013 16:28:19 +0100 From: Fabio Eboli fabi...@quipo.it To: Discussion of precise time and frequency measurement time-nuts@febo.com Subject: Re: [time-nuts] OT, looking for a good science forum Message-ID: 5ef3f142b075fcab38182666a4e50...@quipo.it Content-Type: text/plain; charset=UTF-8; format=flowed Il 2013-01-26 14:58 Bob Camp ha scritto: Hi Platinum RTD's are a pretty good bet for -80C, they hold up well down there. For calibration, ammonia and acetylene both have triple points in the vicinity. I'd probably try ammonia first, but not for any good Doesn't acetylene have a bad habit of dissociate when pure liquid? Fabio. Yes, it's normally stored disolved in acetone. It also spontaneously dissociates if pressures exceed 15 psig or 30 psi absolute. That could put a real damper on your day. -- Paul Amaranth, GCIH | Rochester MI, USA Aurora Group, Inc. | Security, Systems Software p...@auroragrp.com | Unix Windows ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] OT, looking for a good science forum
On 1/26/2013 1:29 PM, Paul Amaranth wrote: Message: 4 Date: Sat, 26 Jan 2013 16:28:19 +0100 From: Fabio Eboli fabi...@quipo.it To: Discussion of precise time and frequency measurement time-nuts@febo.com Subject: Re: [time-nuts] OT, looking for a good science forum Message-ID: 5ef3f142b075fcab38182666a4e50...@quipo.it Content-Type: text/plain; charset=UTF-8; format=flowed Il 2013-01-26 14:58 Bob Camp ha scritto: Hi Platinum RTD's are a pretty good bet for -80C, they hold up well down there. For calibration, ammonia and acetylene both have triple points in the vicinity. I'd probably try ammonia first, but not for any good Doesn't acetylene have a bad habit of dissociate when pure liquid? Fabio. Yes, it's normally stored disolved in acetone. It also spontaneously dissociates if pressures exceed 15 psig or 30 psi absolute. That could put a real damper on your day. Just pure acetone works well at dry ice temperatures. We used crushed dry ice in acetone as an alternative when the liquid nitrogen truck was late making its delivery for the cryro lab. --- Graham / KE9H == ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] OT, looking for a good science forum
Hi If the intent is to come up with a triple point cell to calibrate your thermometer, acetone's triple point (at 178.5K) is a bit low. I still think I'd go with ammonia. Bob On Jan 26, 2013, at 2:51 PM, Graham / KE9H time...@austin.rr.com wrote: On 1/26/2013 1:29 PM, Paul Amaranth wrote: Message: 4 Date: Sat, 26 Jan 2013 16:28:19 +0100 From: Fabio Eboli fabi...@quipo.it To: Discussion of precise time and frequency measurement time-nuts@febo.com Subject: Re: [time-nuts] OT, looking for a good science forum Message-ID: 5ef3f142b075fcab38182666a4e50...@quipo.it Content-Type: text/plain; charset=UTF-8; format=flowed Il 2013-01-26 14:58 Bob Camp ha scritto: Hi Platinum RTD's are a pretty good bet for -80C, they hold up well down there. For calibration, ammonia and acetylene both have triple points in the vicinity. I'd probably try ammonia first, but not for any good Doesn't acetylene have a bad habit of dissociate when pure liquid? Fabio. Yes, it's normally stored disolved in acetone. It also spontaneously dissociates if pressures exceed 15 psig or 30 psi absolute. That could put a real damper on your day. Just pure acetone works well at dry ice temperatures. We used crushed dry ice in acetone as an alternative when the liquid nitrogen truck was late making its delivery for the cryro lab. --- Graham / KE9H == ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] OT, looking for a good science forum
You might try the Society of Amateur Scientists at: http://www.soamsci.org/index.html There is also the Science Madness BBS, although they lean heavily toward chemistry: http://www.sciencemadness.org/talk/index.php 73, Bob Weiss N2IXK ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] OT, looking for a good science forum
You can't be serious. Ammonia gas or liquid is dangerous. You can buy calibrated RTDs or rent a quartz thermometer and stay alive. YMMV, -John === Hi If the intent is to come up with a triple point cell to calibrate your thermometer, acetone's triple point (at 178.5K) is a bit low. I still think I'd go with ammonia. Bob On Jan 26, 2013, at 2:51 PM, Graham / KE9H time...@austin.rr.com wrote: On 1/26/2013 1:29 PM, Paul Amaranth wrote: Message: 4 Date: Sat, 26 Jan 2013 16:28:19 +0100 From: Fabio Eboli fabi...@quipo.it To: Discussion of precise time and frequency measurement time-nuts@febo.com Subject: Re: [time-nuts] OT, looking for a good science forum Message-ID: 5ef3f142b075fcab38182666a4e50...@quipo.it Content-Type: text/plain; charset=UTF-8; format=flowed Il 2013-01-26 14:58 Bob Camp ha scritto: Hi Platinum RTD's are a pretty good bet for -80C, they hold up well down there. For calibration, ammonia and acetylene both have triple points in the vicinity. I'd probably try ammonia first, but not for any good Doesn't acetylene have a bad habit of dissociate when pure liquid? Fabio. Yes, it's normally stored disolved in acetone. It also spontaneously dissociates if pressures exceed 15 psig or 30 psi absolute. That could put a real damper on your day. Just pure acetone works well at dry ice temperatures. We used crushed dry ice in acetone as an alternative when the liquid nitrogen truck was late making its delivery for the cryro lab. --- Graham / KE9H == ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] OT, looking for a good science forum
On Sat, Jan 26, 2013 at 10:00 AM, li...@lazygranch.com wrote: If the intent is surface mount work, get an old BL Stereozoom 3. I'd suggest getting one with any attached illuminator, even a broken one, since the fitting to hold the illuminator is about $30. Later model stereozooms had plastic parts in the focus mechanism. If you need more magnification, you can always get stronger This is really OT for the TN list. But no. I'm looking to equip a biology lab. Need a compound microscope that has on the high side a 1000x magnification. Pretty much your Standard university lab microscope that all freshmen bio students would use. These are a little hard to know what's best to get But I think in addition I want a stereo microscope too. There are decent new ones from China for under $100 and older ones like you mentioned for about the same price. New ones are attractive because of advances like battery powered LED illumination. This kind of microscope is pretty easy to find compared to the other. -- Chris Albertson Redondo Beach, California ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] OT, looking for a good science forum
The microscope group can help with reccomendations. 1000x is really pushing it, because of 'empty magnification'. Best, -John == On Sat, Jan 26, 2013 at 10:00 AM, li...@lazygranch.com wrote: If the intent is surface mount work, get an old BL Stereozoom 3. I'd suggest getting one with any attached illuminator, even a broken one, since the fitting to hold the illuminator is about $30. Later model stereozooms had plastic parts in the focus mechanism. If you need more magnification, you can always get stronger This is really OT for the TN list. But no. I'm looking to equip a biology lab. Need a compound microscope that has on the high side a 1000x magnification. Pretty much your Standard university lab microscope that all freshmen bio students would use. These are a little hard to know what's best to get But I think in addition I want a stereo microscope too. There are decent new ones from China for under $100 and older ones like you mentioned for about the same price. New ones are attractive because of advances like battery powered LED illumination. This kind of microscope is pretty easy to find compared to the other. -- Chris Albertson Redondo Beach, California ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] OT, looking for a good science forum
Hi Yes, indeed you can buy or rent a calibrated RTD. You might be able to rent a quartz thermometer. The HP version (2804) has been history for quite a while. In both cases they come with a cute little disclaimer on the accuracy that more or less says: We can't be sure that this stays calibrated through the shipping process, a triple point cell must be used to verify calibration at the use temperature. One of the reasons HP dropped the product was that people discovered that need after it had been in production for a quite a while. Hysteresis in the LC cut crystals turned out to be one of several issues that contributed to the problem. Pretty much *everything* with a triple point down at 190K is going to have something nasty about it. Bob On Jan 26, 2013, at 3:57 PM, J. Forster j...@quikus.com wrote: You can't be serious. Ammonia gas or liquid is dangerous. You can buy calibrated RTDs or rent a quartz thermometer and stay alive. YMMV, -John === Hi If the intent is to come up with a triple point cell to calibrate your thermometer, acetone's triple point (at 178.5K) is a bit low. I still think I'd go with ammonia. Bob On Jan 26, 2013, at 2:51 PM, Graham / KE9H time...@austin.rr.com wrote: On 1/26/2013 1:29 PM, Paul Amaranth wrote: Message: 4 Date: Sat, 26 Jan 2013 16:28:19 +0100 From: Fabio Eboli fabi...@quipo.it To: Discussion of precise time and frequency measurement time-nuts@febo.com Subject: Re: [time-nuts] OT, looking for a good science forum Message-ID: 5ef3f142b075fcab38182666a4e50...@quipo.it Content-Type: text/plain; charset=UTF-8; format=flowed Il 2013-01-26 14:58 Bob Camp ha scritto: Hi Platinum RTD's are a pretty good bet for -80C, they hold up well down there. For calibration, ammonia and acetylene both have triple points in the vicinity. I'd probably try ammonia first, but not for any good Doesn't acetylene have a bad habit of dissociate when pure liquid? Fabio. Yes, it's normally stored disolved in acetone. It also spontaneously dissociates if pressures exceed 15 psig or 30 psi absolute. That could put a real damper on your day. Just pure acetone works well at dry ice temperatures. We used crushed dry ice in acetone as an alternative when the liquid nitrogen truck was late making its delivery for the cryro lab. --- Graham / KE9H == ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] OT, looking for a good science forum
On Sat, Jan 26, 2013 at 1:46 PM, J. Forster j...@quikus.com wrote: The microscope group can help with reccomendations. 1000x is really pushing it, because of 'empty magnification'. 1000x is the standard. Almost every microscope in a biology lab will have a 100x oil immersion objective and a 10x eyepiece. And then also have two or three lower power objectives as well. If you were to try and get 1000x from a 40x objective or if the optical quality were poor, yes, then you are just getting big, blurry images with no more detai than you'd see at 400x. That is what you call empty magnification and it is. It turns out that 1000x is about the limit of light microscopes and you pretty much need that if the goal is to see structures inside a cell, rather then just the cell's outline. You need to use oil that has about the same refractive index as the glass cover slide. In high school level labs they use cheaper 400x scopes and just look at larger stuff. Chris Albertson Redondo Beach, California ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] OT, looking for a good science forum
http://edl-inc.com/datasheetPDFgallery.php For example. Unless you are doing fundamental physics research, are you sure you need a cryo temperature standard? -John == Hi Yes, indeed you can buy or rent a calibrated RTD. You might be able to rent a quartz thermometer. The HP version (2804) has been history for quite a while. In both cases they come with a cute little disclaimer on the accuracy that more or less says: We can't be sure that this stays calibrated through the shipping process, a triple point cell must be used to verify calibration at the use temperature. One of the reasons HP dropped the product was that people discovered that need after it had been in production for a quite a while. Hysteresis in the LC cut crystals turned out to be one of several issues that contributed to the problem. Pretty much *everything* with a triple point down at 190K is going to have something nasty about it. Bob On Jan 26, 2013, at 3:57 PM, J. Forster j...@quikus.com wrote: You can't be serious. Ammonia gas or liquid is dangerous. You can buy calibrated RTDs or rent a quartz thermometer and stay alive. YMMV, -John === Hi If the intent is to come up with a triple point cell to calibrate your thermometer, acetone's triple point (at 178.5K) is a bit low. I still think I'd go with ammonia. Bob On Jan 26, 2013, at 2:51 PM, Graham / KE9H time...@austin.rr.com wrote: On 1/26/2013 1:29 PM, Paul Amaranth wrote: Message: 4 Date: Sat, 26 Jan 2013 16:28:19 +0100 From: Fabio Eboli fabi...@quipo.it To: Discussion of precise time and frequency measurement time-nuts@febo.com Subject: Re: [time-nuts] OT, looking for a good science forum Message-ID: 5ef3f142b075fcab38182666a4e50...@quipo.it Content-Type: text/plain; charset=UTF-8; format=flowed Il 2013-01-26 14:58 Bob Camp ha scritto: Hi Platinum RTD's are a pretty good bet for -80C, they hold up well down there. For calibration, ammonia and acetylene both have triple points in the vicinity. I'd probably try ammonia first, but not for any good Doesn't acetylene have a bad habit of dissociate when pure liquid? Fabio. Yes, it's normally stored disolved in acetone. It also spontaneously dissociates if pressures exceed 15 psig or 30 psi absolute. That could put a real damper on your day. Just pure acetone works well at dry ice temperatures. We used crushed dry ice in acetone as an alternative when the liquid nitrogen truck was late making its delivery for the cryro lab. --- Graham / KE9H == ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] OT, looking for a good science forum
Hi I was thinking more in terms of: http://us.flukecal.com/products/temperature-calibration/probessensors/secondary-standard-prts/56265628-secondary-sprt-prt-t It all depends on what you are trying to do. Since I didn't make the original request, and no tolerance was stated, it's all guesswork. Bob On Jan 26, 2013, at 5:12 PM, J. Forster j...@quikus.com wrote: http://edl-inc.com/datasheetPDFgallery.php For example. Unless you are doing fundamental physics research, are you sure you need a cryo temperature standard? -John == Hi Yes, indeed you can buy or rent a calibrated RTD. You might be able to rent a quartz thermometer. The HP version (2804) has been history for quite a while. In both cases they come with a cute little disclaimer on the accuracy that more or less says: We can't be sure that this stays calibrated through the shipping process, a triple point cell must be used to verify calibration at the use temperature. One of the reasons HP dropped the product was that people discovered that need after it had been in production for a quite a while. Hysteresis in the LC cut crystals turned out to be one of several issues that contributed to the problem. Pretty much *everything* with a triple point down at 190K is going to have something nasty about it. Bob On Jan 26, 2013, at 3:57 PM, J. Forster j...@quikus.com wrote: You can't be serious. Ammonia gas or liquid is dangerous. You can buy calibrated RTDs or rent a quartz thermometer and stay alive. YMMV, -John === Hi If the intent is to come up with a triple point cell to calibrate your thermometer, acetone's triple point (at 178.5K) is a bit low. I still think I'd go with ammonia. Bob On Jan 26, 2013, at 2:51 PM, Graham / KE9H time...@austin.rr.com wrote: On 1/26/2013 1:29 PM, Paul Amaranth wrote: Message: 4 Date: Sat, 26 Jan 2013 16:28:19 +0100 From: Fabio Eboli fabi...@quipo.it To: Discussion of precise time and frequency measurement time-nuts@febo.com Subject: Re: [time-nuts] OT, looking for a good science forum Message-ID: 5ef3f142b075fcab38182666a4e50...@quipo.it Content-Type: text/plain; charset=UTF-8; format=flowed Il 2013-01-26 14:58 Bob Camp ha scritto: Hi Platinum RTD's are a pretty good bet for -80C, they hold up well down there. For calibration, ammonia and acetylene both have triple points in the vicinity. I'd probably try ammonia first, but not for any good Doesn't acetylene have a bad habit of dissociate when pure liquid? Fabio. Yes, it's normally stored disolved in acetone. It also spontaneously dissociates if pressures exceed 15 psig or 30 psi absolute. That could put a real damper on your day. Just pure acetone works well at dry ice temperatures. We used crushed dry ice in acetone as an alternative when the liquid nitrogen truck was late making its delivery for the cryro lab. --- Graham / KE9H == ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] OT, looking for a good science forum
On 26 January 2013 18:31, DARRELL ROBINSON darr...@shaw.ca wrote: I did a Google search and came across sciencenuts.org, but content was limited If you have no success, maybe science-nuts could be created. There would be at least two of us joining. Make that three. Dave ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] OT, looking for a good science forum
The stereo boom mount scopes from amscope are priced right. The one I have seems well made and works great for surface mount work down to 0201. Some of the finish details are a bit off (generic metal adjustment handles) but it was a new, complete, guaranteed working scope so I don't have any legitimate complaints. If you are going to buy one, buy it from amazon after figuring out which on you want on the amscope site. You'll pay less Eric Sent from my Banana Jr.(tm) mobile device On Jan 26, 2013, at 1:36 PM, Chris Albertson albertson.ch...@gmail.com wrote: On Sat, Jan 26, 2013 at 10:00 AM, li...@lazygranch.com wrote: If the intent is surface mount work, get an old BL Stereozoom 3. I'd suggest getting one with any attached illuminator, even a broken one, since the fitting to hold the illuminator is about $30. Later model stereozooms had plastic parts in the focus mechanism. If you need more magnification, you can always get stronger This is really OT for the TN list. But no. I'm looking to equip a biology lab. Need a compound microscope that has on the high side a 1000x magnification. Pretty much your Standard university lab microscope that all freshmen bio students would use. These are a little hard to know what's best to get But I think in addition I want a stereo microscope too. There are decent new ones from China for under $100 and older ones like you mentioned for about the same price. New ones are attractive because of advances like battery powered LED illumination. This kind of microscope is pretty easy to find compared to the other. -- Chris Albertson Redondo Beach, California ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] OT, looking for a good science forum
I like the idea of a amateur microscopy nuts reflector. After a warm day, my bees took their cleansing flights and I collected some of their poop to look for parasites. Did not find anything moving at 500x , like tracheal mites or their parts, but I did find a lot of undigested pollen. I have not found a reflector for my microscopy interests. Stan, W1LE On 1/26/2013 5:45 PM, David Kirkby wrote: On 26 January 2013 18:31, DARRELL ROBINSON darr...@shaw.ca wrote: I did a Google search and came across sciencenuts.org, but content was limited If you have no success, maybe science-nuts could be created. There would be at least two of us joining. Make that three. Dave ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] Serial port / Mouse issue (was mentioned inThunderbolt Monitor)
On 1/25/2013 1:43 AM, David J Taylor wrote: From: Sarah White [complex instructions snipped] --Sarah P.S. sorry to double-post like this. === Sara, It's far simpler to go into the Device Manger and disable the spurious device, as described here: http://www.gpsmap.net/GarminHints.html#GPSR_ComputerMouse No need to edit boot.ini (obsolete in any case), no need to edit the registry. By the way, on a test Windows-8 system the GPS wasn't detected as a serial mouse, so possibly Microsoft have improved the mouse detection code! Cheers, David Beg your pardon? 1) Your comment seems to suggest a misunderstanding. I wasn't advocating any editing of boot.ini in the first place. ...Boot.ini doesn't even exist anymore, so I wasn't suggesting that, as it's s an outdated practice, and the official workaround is the one I was trying to share... 2) At the bottom of the section you just linked, it says: See also the Microsoft Knowledge Base Article # 283063, Serial Device May Be Detected as a Serial Mouse in Windows 2000. The referenced knowledge base article, 283063: http://support.microsoft.com/kb/283063 Title: Serial Device May Be Detected as a Serial Mouse in Windows 2000 ^That workaround is for EVEN OLDER version of windows. --snip-- APPLIES TO Microsoft Windows 2000 Service Pack 1 Microsoft Windows 2000 Service Pack 2 Microsoft Windows 2000 Advanced Server Microsoft Windows 2000 Advanced Server Microsoft Windows 2000 Service Pack 1 Microsoft Windows 2000 Service Pack 2 --snip-- If you disable the offending device in device manager, the automatic plug play can, and often DOES just re-install a second version of this mouse after running windows update. Second opinion about the approach I was recommending: http://answers.microsoft.com/en-us/windows/forum/windows_7-hardware/windows-7-recognized-usb-gps-as-a-serial-mouse-in/0c3f0d94-6181-4a43-9e90-bcea8a21415d Shortened URL: http://goo.gl/xFcSc Note the similarity of official instructions, written by: Samhrutha G S - Microsoft Support. --snip-- i. Click on start ii.In the search box, type in regedit iii. Registry editor windows opens iv. Navigate to the location: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\sermouse --snip-- Whatever works for you though I guess. I was just explaining the officially supported method *shrugs* ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] OT, looking for a good science forum
The Yahoo Microscope Group already exists with over 3700 members world wide, which forms a huge knowlege base, from biology to microelectronics. http://tech.groups.yahoo.com/group/Microscope/ Why re-invent the wheel? -John == I like the idea of a amateur microscopy nuts reflector. After a warm day, my bees took their cleansing flights and I collected some of their poop to look for parasites. Did not find anything moving at 500x , like tracheal mites or their parts, but I did find a lot of undigested pollen. I have not found a reflector for my microscopy interests. Stan, W1LE On 1/26/2013 5:45 PM, David Kirkby wrote: On 26 January 2013 18:31, DARRELL ROBINSON darr...@shaw.ca wrote: I did a Google search and came across sciencenuts.org, but content was limited If you have no success, maybe science-nuts could be created. There would be at least two of us joining. Make that three. Dave ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] Serial port / Mouse issue (was mentioned inThunderbolt Monitor)
http://www.gpsmap.net/GarminHints.html#GPSR_ComputerMouse David -- that particular solution does not work in many cases. Shortened URL: http://goo.gl/xFcSc Sarah -- that solution also doesn't work in many cases. Read the entire 3 pages of frustrated comments that follow the so-called solution to the problem (the start value resets to 3). All -- I've never seen a robust solution to the issue of rapid serial data on a Windows NT/XP/Vista/7 machine. It's not just GPS; any serial telemetry device from thermometer to frequency counter to time interval analyzer suffers the same fate. If any of you have a 100% workable solution please send it to me *off-line*. If I'm convinced it works, I'll post the one true solution here. I realize there are a number of work-around hacks that sometimes work, or work for a while. My goal is a single action a windows user can perform that will then permanently prevent any and all future serial / PnP / USB GPS-like devices from being wrongly interpreted as a mouse for the life of the machine. Thanks, /tvb ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] OT, looking for a good science forum
Thanks for the pointer. I am checking it out now. Stan On 1/26/2013 8:59 PM, J. Forster wrote: The Yahoo Microscope Group already exists with over 3700 members world wide, which forms a huge knowlege base, from biology to microelectronics. http://tech.groups.yahoo.com/group/Microscope/ Why re-invent the wheel? -John ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] OT, looking for a good science forum
Eh, I'd spend the extra $200 and get a BL unless you don't expect to use it much. At around $300, you would get a Stereozoom 3, heavy table and long arm. The Stereozoom dates back to the days they built magnetic RAM. It is designed for all day use. The working distance is kind of important if you expect to work on a PCB, since they are 3D. But maybe the Chinese stuff would work for occasional use. However, the BL can go in your will! --Original Message-- From: Chris Albertson To: li...@lazygranch.com To: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] OT, looking for a good science forum Sent: Jan 26, 2013 1:36 PM On Sat, Jan 26, 2013 at 10:00 AM, li...@lazygranch.com wrote: If the intent is surface mount work, get an old BL Stereozoom 3. I'd suggest getting one with any attached illuminator, even a broken one, since the fitting to hold the illuminator is about $30. Later model stereozooms had plastic parts in the focus mechanism. If you need more magnification, you can always get stronger This is really OT for the TN list. But no. I'm looking to equip a biology lab. Need a compound microscope that has on the high side a 1000x magnification. Pretty much your Standard university lab microscope that all freshmen bio students would use. These are a little hard to know what's best to get But I think in addition I want a stereo microscope too. There are decent new ones from China for under $100 and older ones like you mentioned for about the same price. New ones are attractive because of advances like battery powered LED illumination. This kind of microscope is pretty easy to find compared to the other. -- Chris Albertson Redondo Beach, California ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] OT, looking for a good science forum
Try a AO PhaseStar phase contrast microscope they are relatively cheap on eBay and they should be more than adequate for beekeeping. The phase contrast feature allows you to see celluar details without staining in most cases Most of them have fittings for camera tubes so photomicrography is easily accomplished or use a video camera and a large monitor for studying details or group viewing Sent from my iPhone On Jan 26, 2013, at 4:36 PM, Chris Albertson albertson.ch...@gmail.com wrote: On Sat, Jan 26, 2013 at 10:00 AM, li...@lazygranch.com wrote: If the intent is surface mount work, get an old BL Stereozoom 3. I'd suggest getting one with any attached illuminator, even a broken one, since the fitting to hold the illuminator is about $30. Later model stereozooms had plastic parts in the focus mechanism. If you need more magnification, you can always get stronger This is really OT for the TN list. But no. I'm looking to equip a biology lab. Need a compound microscope that has on the high side a 1000x magnification. Pretty much your Standard university lab microscope that all freshmen bio students would use. These are a little hard to know what's best to get But I think in addition I want a stereo microscope too. There are decent new ones from China for under $100 and older ones like you mentioned for about the same price. New ones are attractive because of advances like battery powered LED illumination. This kind of microscope is pretty easy to find compared to the other. -- Chris Albertson Redondo Beach, California ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] OT, looking for a good science forum
Liquid acetone requires special handling and pressurized cells to keep it from explosively disassociating. Ammonia also requires pressure vessels and in pure form is incredibly corrosive So unless you are trained in these techniques just don't even think about doing this Sent from my iPhone On Jan 26, 2013, at 3:57 PM, J. Forster j...@quikus.com wrote: You can't be serious. Ammonia gas or liquid is dangerous. You can buy calibrated RTDs or rent a quartz thermometer and stay alive. YMMV, -John === Hi If the intent is to come up with a triple point cell to calibrate your thermometer, acetone's triple point (at 178.5K) is a bit low. I still think I'd go with ammonia. Bob On Jan 26, 2013, at 2:51 PM, Graham / KE9H time...@austin.rr.com wrote: On 1/26/2013 1:29 PM, Paul Amaranth wrote: Message: 4 Date: Sat, 26 Jan 2013 16:28:19 +0100 From: Fabio Eboli fabi...@quipo.it To: Discussion of precise time and frequency measurement time-nuts@febo.com Subject: Re: [time-nuts] OT, looking for a good science forum Message-ID: 5ef3f142b075fcab38182666a4e50...@quipo.it Content-Type: text/plain; charset=UTF-8; format=flowed Il 2013-01-26 14:58 Bob Camp ha scritto: Hi Platinum RTD's are a pretty good bet for -80C, they hold up well down there. For calibration, ammonia and acetylene both have triple points in the vicinity. I'd probably try ammonia first, but not for any good Doesn't acetylene have a bad habit of dissociate when pure liquid? Fabio. Yes, it's normally stored disolved in acetone. It also spontaneously dissociates if pressures exceed 15 psig or 30 psi absolute. That could put a real damper on your day. Just pure acetone works well at dry ice temperatures. We used crushed dry ice in acetone as an alternative when the liquid nitrogen truck was late making its delivery for the cryro lab. --- Graham / KE9H == ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] Serial port / Mouse issue (was mentionedinThunderbolt Monitor)
http://www.gpsmap.net/GarminHints.html#GPSR_ComputerMouse David -- that particular solution does not work in many cases. Shortened URL: http://goo.gl/xFcSc Sarah -- that solution also doesn't work in many cases. Read the entire 3 pages of frustrated comments that follow the so-called solution to the problem (the start value resets to 3). All -- I've never seen a robust solution to the issue of rapid serial data on a Windows NT/XP/Vista/7 machine. It's not just GPS; any serial telemetry device from thermometer to frequency counter to time interval analyzer suffers the same fate. If any of you have a 100% workable solution please send it to me *off-line*. If I'm convinced it works, I'll post the one true solution here. I realize there are a number of work-around hacks that sometimes work, or work for a while. My goal is a single action a windows user can perform that will then permanently prevent any and all future serial / PnP / USB GPS-like devices from being wrongly interpreted as a mouse for the life of the machine. Thanks, /tvb === Tom, Thanks for the updates. On both my Windows-7/64 PC and my Windows-8/64 PC I've not had to apply any fixes at all. Cheers, David -- SatSignal Software - Quality software written to your requirements Web: http://www.satsignal.eu Email: david-tay...@blueyonder.co.uk ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] Serial port / Mouse issue (was mentioned inThunderbolt Monitor)
-Original Message- From: Sarah White [] Whatever works for you though I guess. I was just explaining the officially supported method *shrugs* = It seems from Tom's comments that the various fixes don't work for everyone. I count myself lucky that I've not needed any fixes for either my Win-7/64 and my Win-8/64 PCs. Win-7/64 is from a Sure Electronics evaluation board running at the default 9600 baud with several sentences, and Win-8/64 from a Garmin GPS 18x LVC at 38400 baud, emitting just $GPRMC if I recall correctly. I wasn't originally aware of the more recent Microsoft article, not having needed it myself, so thanks for the pointer. I hope the information we both presented will be helpful to someone. Cheers, David -- SatSignal Software - Quality software written to your requirements Web: http://www.satsignal.eu Email: david-tay...@blueyonder.co.uk ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] OT, looking for a good science forum
Scott wrote: Liquid acetone requires special handling and pressurized cells to keep it from explosively disassociating. Did you mean liquid acetylene? Liquid acetone is sold in nearly every hardware and drug store in the US, and is one of the usual solvents into which acetylene is dissolved in commercial acetylene tanks to render the acetylene safer. Best regards, Charles ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
Re: [time-nuts] OT, looking for a good science forum
On Sat, Jan 26, 2013 at 2:12 PM, J. Forster j...@quikus.com wrote: Unless you are doing fundamental physics research, are you sure you need a cryo temperature standard? You are right. What I asked I should have said that 1% accuracy would be good enough.I'm pretty sure now that I can get to the 1% level for well under $20. They sell small thin film platinum RTD for about $8. They look like a tiny SMD resistor. I could place a constant current across it and meaure the voltage drop. Dry ice sublimation might be the safest calibration method and close enough for thr 1% goal maybe. Another calibration point might be the boiling point of water. I don't need to design this now, it was an example equestion -- Chris Albertson Redondo Beach, California ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
