You may have heard how sounds travel farther during a temperature inversion, when air near the ground is cooler than the air above. But do you know how this phenomenon is related to the 1947 UFO crash in Roswell, New Mexico? [more inside]
posted by mbrubeck
on Jun 8, 2014 -
The New Frontier- Preparing the law for settling on Mars. "Like the abandoned launch fields [at Cape Canveral], the Outer Space Treaty [of 1967] needs to have its valuable parts salvaged, and the dangerous ones demolished."
posted by Ty Webb
on Jun 4, 2002 -
Remember the movie "The Day After?" Back in the Cold War days, we were all worried about someday being vaporized by a nuclear blast. Well now, in this post-Cold War era you can relive those wonderful memories with PBS' Nuclear Blast Mapper. I popped in the coordinates for MetaFilter's server location, set the bomb to a 25 megaton blast and this is the result. Think about that the next time you hear a country gets their first nuclear weapons.
posted by mathowie
on Feb 3, 2000 -