3 proofs that debunk flat-Earth theory | NASA’s Michelle Thaller | Big Think

So, Oscar, you asked the question, “What are some of the easiest ways that you can prove that the Earth is round?” Because apparently, this is something that we’re debating—I have no idea why. That’s a hard thing for me to even start talking about because there are so many proofs that the Earth is Read more…

Neil deGrasse Tyson (Caught on Camera): The Universe is Trying to Kill You

Can I just have you talk about whatever you want to talk about for two seconds while I check the sound? Sure. The Universe is a deadly place. At every opportunity it’s trying to kill us. And so is Earth. From sinkholes to tornadoes and hurricanes and volcanoes and tsunamis…

Michio Kaku: The Universe in a Nutshell (Full Presentation)

My name is Professor Michio Kaku.  I’m a professor of theoretical physics at the City University of New York and I specialize in something called string theory.  I’m a physicist. Some people ask me the question, “What has physics done for me lately?  I mean, do I get better color television, do I get better Read more…