Neil DeGrasse Tyson: Death by Black Hole
Astrophysicist Neil DeGrasse Tyson tells us how the universe is trying to kill us. A funny and gifted entertainer!
Found at Schnütziswelt.
Michio Kaku: 3 types of Extraterrestrial Civilizations
Now it’s getting a little bit geeky. Dr. Michio Kaku, theoretical physicist, what scientists are looking for when searching for an extraterrestrial civilization and why now is the most important time for the human civilization.
Rob Bryanton: Imagining the Tenth Dimension
Presenting a complex topic can be tricky. What if you’d have to present something so complex that it’s beyond imagination? In this clip, Rob Bryanton tries to explain how you can imagine ten dimensions.
Phil Plait: Why do black holes have such strong gravity
If you’ve been following Spoken Gems for a while, you might notice that I often post something unusual on Thursday. This time it’s Phil Plait, explaining what causes the strong gravity of black holes.
Found at Bad Astronomy.