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got a call this morning.......

Bill Boehme said:
Obviously, you weren't watching Nova. :D Were UFO's and Bigfoot involved in this program as well? ;) But, NASA data also puts a damper on the green cheese theory as well ... whether aged or processed. I was looking forward to tasting some samples from the Apollo missions ... I had my Ritz crackers all ready just in case. :)



No they're not all the same depth. It's not a simple problem to analyze, but a major factor is the kinetic energy of the impact which is determined by the mass of the asteroid or whatever impacts the surface and the square of its velocity. But, the depth isn't a direct correlation to kinetic energy. At impact, energy is dissipated in all directions. As ejecta is removed from the surface, it makes the diameter of the crater a better indicator of the size of the impacting object.



It's "Lockheed Martin" my former employer before I retired. And, yes, because of research during the 60s many advances were made in metals able to withstand harsh environments (vibration, wear, forces, corrosion, temperature, shock) in order to achieve extended lifetimes. Better chainsaw blades could possibly be one of the results of those technology advances.



Asteroid impacts would punch holes (literally) in that idea as well as in a hollow moon.. :D I would be at a loss to explain the physics of how a hollow sphere could come to exist in the first place, not to mention rationalizing that with the Moon's known mass. The Earth vibrates and it's not hollow AFAIK. That's how we area able to detect earthquakes.
Click to expand...

Well, the ringing in my ears when I walked into a steel beam the other day is explained. Although I don't know the mass of my noggin, clearly it's hollow.
 
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