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…

23. Class 12 Physics | PN Junction & Sem Diodes | Photo Diode | by Ashish Arora (GA)

lets study about another, semiconductor diode, which is called photo diode. about a photo diode we can write that, it is a junction diode. a p-n junction diode only. manufactured. by using a. light sensitive. semiconductor. in this situation. whenever light falls on the junction of a photodiode. as the semiconductor is light sensitive. numerous Read more…

My Life As an Adventure Photographer | Nat Geo Live

– Hello everyone, thank you so much for coming, my name is Becca Skinner, and I’m a National Geographic Young Explorer, and an adventure photographer. Before I get started and tell you why, in this photo, I’m carrying 110 liters of camera gear, across the coast of Canada, I just wanted to give you a Read more…

PHILOSOPHY: Immanuel Kant

Immanuel Kant is a philosopher who tried to work out how human beings could be good and kind outside of the exaltations and blandishments of traditional religions. He was born in 1724, in the Baltic city of Königsberg, which at that time was part of Prussia and now belongs to Russia, renamed Kaliningrad. Kant’s parents Read more…

After the Avalanche: Life as an Adventure Photographer With PTSD (Part 1) | Nat Geo Live!

I’m gonna start before any adventures for the magazine, before I was out in Antarctica, before any of this happened. I’m gonna start by telling you how cool I was as a kid, because honestly, I was pretty cool. I was the first hipster ever, sideways trucker hat. I was kicking OshKosh B’Gosh, popped collar, Read more…

POLITICAL THEORY – Karl Marx

Most people agree that we need to improve our economic system somehow. Yet we’re also often keen to dismiss the ideas of capitalism’s most famous and ambitious critic, Karl Marx. This isn’t very surprising. In practice, his political and economic ideas have been used to design disastrously planned economies and nasty dictatorships. Nevertheless, we shouldn’t Read more…

Saving Animals Through Photography | Nat Geo Live

( intro music ) We’re about 5,000 species into a 12,000 species quest.Let’s just get people to look these animals in the eyeon black and white backgrounds,We’re not trying to get everythingon the face of the Earth, there’s millions.We’re trying to get everything in captivity.Instead of thislet’s do this.Instead of this animal just going to Read more…