Re: [meteorite-list] Fireball question / sonic boom

2011-03-30 Thread David Norton
Good morning. Sonic booms are formed by shock wave created by the rapid displacement of air. The change in air pressure required to generate the shock wave is only a few pounds per SF. There is a wave generated on the front and at the back of a moving object. The size of the waves are determined

Re: [meteorite-list] Sedimentary Martian Meteorites

2011-03-22 Thread David Norton
I would think the answer to your question is simpler than the science trying to explain why we do not have this material in our possession. The stones in questions are more likely unrecognized, particularly if there is a lack of fusion crust. Reference our own understanding (recognition) of

Re: [meteorite-list] What's Hitting Earth?

2011-03-03 Thread David Norton
The subject of meteoritic dust has been extensively studied since the 1950's. Nininger first promoted the volumes of dust generated by falls and conducted dust collecting experiments. Search google for collection of meteoritic dust and you will find papers and abstracts with long lists of

Re: [meteorite-list] Temperature of meteorites

2010-11-24 Thread David Norton
Good morning list. This is actually a good topic for debate and is not so easily answered by simple application of constants. There are several variable factors here that require scrutiny before being able to determine whether the temperature of any given meteorite would / could be hot upon

Re: [meteorite-list] Secret BLM maps ?

2010-11-04 Thread David Norton
If you can find older versions of topo maps you will see more detail in labeling of features such as ruins. The current maps are more sanitized. -Original Message- From: meteorite-list-boun...@meteoritecentral.com [mailto:meteorite-list-boun...@meteoritecentral.com] On Behalf Of Thomas

Re: [meteorite-list] GoogleEarth GPS in Meteorite Hunting

2010-09-12 Thread David Norton
On a conceptual this sounds great. One flaw in deployment is the accuracy of the gps coordinates that you may have for any given find. There are coordinates in MetBul that are accurate within 20 miles or sothats' a lot of dirt. Any coordinates in MetBul prior to the advent of the GPS system

Re: [meteorite-list] Meteor Crater Shape and Entry Angle

2010-09-10 Thread David Norton
How about SW to NE? I believe there are several finds along that path that match the Canyon Diablo material. -Original Message- From: meteorite-list-boun...@meteoritecentral.com [mailto:meteorite-list-boun...@meteoritecentral.com] On Behalf Of Meteorites USA Sent: Friday, September 10,

Re: [meteorite-list] Magnet canes are evil DONT THINK SO!

2010-08-24 Thread David Norton
The truth is the law has not been changed. The new attitude is the result of a policy change mandated internally by the BLM. They are using the antiquities law to prosecute. I do not believe this has been challenged as of yet. -Original Message- From:

Re: [meteorite-list] Gebel Kemil article in New Scientist

2010-08-05 Thread David Norton
Am I mistaken or is the location in a region of disputed boundaries? If so, the rightful owner has yet to be determined. Additionally, I believe that I had previously read that Egypt does not have laws specifically regarding meteorites, but has strong laws regarding artifacts. -Original

Re: [meteorite-list] WI Meteorite Strewnfield Map

2010-07-14 Thread David Norton
Great job! One missing point of interest is the area (dimensions) of the strewn field as you represent it on these images. Again, great work. -Original Message- From: meteorite-list-boun...@meteoritecentral.com [mailto:meteorite-list-boun...@meteoritecentral.com] On Behalf Of Meteorites

Re: [meteorite-list] WI Meteorite Hunting Statistics

2010-05-09 Thread David Norton
Guidelines for travel expenses have been established by the IRS and are more or less followed by corporate America...ok and academia also. While per diem allowances established for government employees may seem ridiculous there is really no reason to reinvent the wheel. Lodging, meals, travel,

[meteorite-list] New position on hunting BLM lands

2010-05-05 Thread David Norton
Apparently the BLM is taking the stance that meteorites fall under the federal antiquities act. A link to the BLM Oregon site. This is allegedly going to be on every BLM site soon. http://www.blm.gov/or/programs/minerals/noncollectables.php __ Visit

Re: [meteorite-list] New position on hunting BLM lands

2010-05-05 Thread David Norton
paths. - Original Message From: David Norton renov8hot...@earthlink.net To: meteorite-list@meteoritecentral.com Sent: Wed, May 5, 2010 7:40:08 AM Subject: [meteorite-list] New position on hunting BLM lands Apparently the BLM is taking the stance that meteorites fall under

[meteorite-list] Pricing drama

2010-05-01 Thread David Norton
If I wanted my inbox filled with drama every day I would have subscribed to the Old ladies at the beauty parlor forum or the yapping circus dog forum. How did this space devolve from a pseudo scientific bent into the land of drama? You know what they say about opinions. Let's get back to the core

[meteorite-list] Arizona Falls

2010-04-29 Thread David Norton
I am researching historic falls in Arizona and I am looking for some help if anyone has information or contacts who may be able to fill in missing details. I am looking for any information, photographs, flight maps etc. The first is June 1998, a fall that apparently terminated in central Arizona