(via Concept Ships)
[video]
The Wow! signal was a strong narrowband radio signal detected by Dr. Jerry R. Ehman on August 15, 1977, while working on a SETI project at The Big Ear radio telescope of Ohio State University. Amazed at how closely the signal matched the expected signature of an interstellar signal in the antenna used, Ehman circled the signal on the computer printout and wrote the comment “Wow!” on its side.
Both the length of the Wow! signal and the shape of the intensity graph may correspond to a possible extraterrestrial origin.
Cerenkov Radiation, “The Blue Glow”
Light produced by electrons traversing the water at a speed greater than the speed of light in water. Cerenkov radiation looks much like a glowing ball of water or plasma around the reactor core.
Source: Purdue University, Purdue University Reactor Number One
A diagram of the traditional magnetic dipole model of a pulsar.
Source: National Radio Astronomy Observatory, Charlottesville, Pulsar Properties
(via boingboing)