If any sort of perpetual motion machine, especially one that outputs more energy than it inputs, were possible it would mean that much of what we thought we understood about the universe is wrong. Such devices violate the laws of thermodynamics, which are called "laws" because so far they have never been observed to… » 10/20/14 3:09pm Yesterday 3:09pm

Plan 9 From Outer Space is widely regarded as the worst film ever made. I agree it's very bad, but there's a worse one. Castle of Fu Manchu (MGM, 1972) is a cinematic turd of the first water, a jumbled concatenation of unrelated scenes that reduced MST3K's redoubtable Tom Servo to shuddering tears, sobbing "Oh, what's… » 10/19/14 11:16am Sunday 11:16am

Physicist Arthur Eddington proposed hydrogen fusion as the source of energy in the sun in 1920. British astronomer Robert Atkinson and German physicist Friedrich Houtermans calculated the rate of solar fusion in 1924. Oliphant discovered that heavy hydrogen atoms could react with each other in 1932. » 10/18/14 1:00pm Saturday 1:00pm

Today practically everyone on the planet carries a camera with them at all times; most of those will shoot video as well. Even with billions of cameras continuously deployed world-wide there is still not a single clear photo of something that can only be an extraterrestrial spacecraft. Not one, just out of focus blobs… » 10/18/14 5:19am Saturday 5:19am