RE: [Vo]:Using the cold universe as a renewable and sustainable energy source
Since you guys brought the subject up, I continue to wonder if it might be possible to tap the basic charge of our atmosphere ( earth to air current) by transmitting it away? http://www.rexresearch.com/prentice/prentice.htm Obviously, a huge VLF signal is very different from radiant heat. But I keep thinking there must be a way to exploit this charge difference via packaging it as an RF transmission. The part of this I can’t wrap my head around concerns the difference between a form of conduction vs outright RF waves ( which work in a vacuum). There was an odd form of radio invented by a guy named Rogers who tried to use it to communicate with subs. It seemed to be something in between RF and ground conduction but across distances. That might apply here. From: MSF Sent: Thursday, January 13, 2022 4:00 PM To: vortex-l@eskimo.com Subject: Re: [Vo]:Using the cold universe as a renewable and sustainable energy source This is indeed great stuff. Jed, do you have a reference to the Lowland India method? I can only find the Persian ice making structures. Or are they the same? ‐‐‐ Original Message ‐‐‐ On Thursday, January 13th, 2022 at 7:18 PM, Jed Rothwell mailto:jedrothw...@gmail.com>> wrote: This is great stuff. This method was used to make ice in lowland India starting in the 16th century. Lowland India is hot! CAUTION: This message was sent from outside the Nexstar organization. Please do not click links or open attachments unless you recognize the sender.
Re: [Vo]:Using the cold universe as a renewable and sustainable energy source
This is indeed great stuff. Jed, do you have a reference to the Lowland India method? I can only find the Persian ice making structures. Or are they the same? ‐‐‐ Original Message ‐‐‐ On Thursday, January 13th, 2022 at 7:18 PM, Jed Rothwell wrote: > This is great stuff. > > This method was used to make ice in lowland India starting in the 16th > century. Lowland India is hot!
Re: [Vo]:Using the cold universe as a renewable and sustainable energy source
An Indian perspective https://www.youtube.com/watch?v=7a5NyUITbyk Jed Rothwell wrote: This is great stuff. This method was used to make ice in lowland India starting in the 16th century. Lowland India is hot!
Re: [Vo]:Using the cold universe as a renewable and sustainable energy source
This is great stuff. This method was used to make ice in lowland India starting in the 16th century. Lowland India is hot!
Re: [Vo]:Using the cold universe as a renewable and sustainable energy source
I found this article interesting for several reasons. I specialize in manufacturing large quantities of micro/nano-structured surfaces, mostly for decorative purposes. I made a sample run of that structure pictured about half way down the article, labeled "E". The customer wouldn't tell me what it's purpose was, but I am used to that so I didn't think anything more about it. Usually nothing comes of these technical sample runs. A lot of things need to be done to reduce dependence on air condition and it doesn't need to be as fancy as sub-ambient radiative cooling. Think of all the energy wasted cooling black automobiles, for example. The roof of the average house is probably effectively 80% black. We are willing to sacrifice all kinds of things just because it might not be pretty or stylish. What if everyone just painted his roof magnesium oxide white? Not going to happen is it? An example from long ago in my past is rather dramatic. Decades ago, I had a traveling laser light show at state fairs. It was shown in a 70 ft. diameter inflatable dome. The dome was made of a metallic pigmented vinyl. It was sort of a silver-gray color, still quite sunlight absorptive. It could get quite hot in there, reducing business. My business partner and I had a rather spirited disagreement about getting this huge semi-trailer size air conditioning unit or using my solution to the problem, which was simply to put a metallized plastic film slip cover on the dome. His air-conditioning "expert" explained why my idea couldn't possibly work. I prevailed in the end, just because of the relative expense. The effect was remarkable. As the dome was place on bare lawn or paving, ground cooling took effect. Even on the hottest days, it could become a little cooler than was comfortable. This is rather remarkable considering that outside air was pumped in to support the dome structure. ‐‐‐ Original Message ‐‐‐ On Wednesday, January 12th, 2022 at 8:11 PM, H LV wrote: > Terrestrial radiative cooling: Using the cold universe as a renewable and > sustainable energy source > > https://www.sciencemagazinedigital.org/sciencemagazine/13_november_2020/MobilePagedArticle.action?articleId=1637817#articleId1637817 > > A presentation of the paper on youtube > https://youtu.be/_O6x47BjYT4 > > Harry
Re: [Vo]:Using the cold universe as a renewable and sustainable energy source
In reply to H LV's message of Wed, 12 Jan 2022 21:24:48 -0500: Hi Harry, Google agrees with you. :) [snip] >On Wed, Jan 12, 2022 at 7:04 PM Robin >wrote: > >In reply to H LV's message of Wed, 12 Jan 2022 15:11:09 -0500: >> Hi, >> [snip] >> >Terrestrial radiative cooling: Using the cold universe as a renewable and >> >sustainable energy source >> > >> https://www.sciencemagazinedigital.org/sciencemagazine/13_november_2020/MobilePagedArticle.action?articleId=1637817#articleId1637817 >> >> I note that 8-13 mm is the same order of magnitude as the CMBR. >> Coincidence? >> >> >I think the wavelength is 8 - 13 ?m (micrometer) rather than 8 - 13 mm >(millimeter). > >Harry Regards, Robin van Spaandonk
Re: [Vo]:Using the cold universe as a renewable and sustainable energy source
On Wed, Jan 12, 2022 at 7:04 PM Robin wrote: In reply to H LV's message of Wed, 12 Jan 2022 15:11:09 -0500: > Hi, > [snip] > >Terrestrial radiative cooling: Using the cold universe as a renewable and > >sustainable energy source > > > https://www.sciencemagazinedigital.org/sciencemagazine/13_november_2020/MobilePagedArticle.action?articleId=1637817#articleId1637817 > > I note that 8-13 mm is the same order of magnitude as the CMBR. > Coincidence? > > I think the wavelength is 8 - 13 μm (micrometer) rather than 8 - 13 mm (millimeter). Harry
Re: [Vo]:Using the cold universe as a renewable and sustainable energy source
In reply to H LV's message of Wed, 12 Jan 2022 15:11:09 -0500: Hi, [snip] >Terrestrial radiative cooling: Using the cold universe as a renewable and >sustainable energy source >https://www.sciencemagazinedigital.org/sciencemagazine/13_november_2020/MobilePagedArticle.action?articleId=1637817#articleId1637817 I note that 8-13 mm is the same order of magnitude as the CMBR. Coincidence? Regards, Robin van Spaandonk
