A physics professor analyzes the relationship between the color of beer bottles and their skunkiness.
Carl Sagan on time travel:
Right now we’re in one of those classic, wonderfully evocative moments in science when we don’t know, when there are those on both sides of the debate, and when what is at stake is very mystifying and very profound.
If we could travel into the past, it’s mind-boggling what would be possible. For one thing, history would become an experimental science, which it certainly isn’t today.
Personally, I find it terrifying. Once, I had a nightmare in which I was abducted by a secret government goon squad and taken to a secret dungeon with all sorts of fancy equipment. They put me under this strange gun-like device and then they sent me back in time. But the really horrible thing is that they would just let me live for a while and then they would do the whole thing again. So I would keep being flung back in time to a time and place I did not understand and had trouble surviving in and this would go on (for me at least) FOREVER. They called it chronotorture.
A slightly less morbid possibility is Nazi time-thugs will emerge from a chrono-vortex at your next birthday party and kill you for your birthday card’s embedded microchip. So remember, prepare for ultra-violence at any event where gift cards may be given.
Ethan Siegal explains volcanic lightning. When I first saw the photos from Eyjafjallajökull I thought they had been photoshopped to make them even more cool…but no, they just are that cool.