Mark Zuckerberg on Taking Risks and Finding Talented People
And just to make this point, how far into Facebook did it actually become a company? Um, I don’t know. I think probably it
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View AllElectrolytic cells | Applications of thermodynamics | AP Chemistry | Khan Academy
Electrolytic cells use an electric current to drive a thermodynamically unfavorable reaction. Before we look at a diagram of an electrolytic cell, let’s look at the half reactions that will occur in the cell.
In one half reaction, liquid sodium ions reac…
Nat Geo Staff Ranks Top 8 BEST Walking Shoes for Men and Women | National Geographic
Heyo! I’m Starlight Williams, a digital editor at National Geographic and your go-to gal for information you didn’t know you needed. Today I’m teaming up with my fellow walking aficionado, Ruben Rodriguez Perez, to talk to you about our picks for the best…
The Egyptian and Hittite Peace Treaty | Lost Treasures of Egypt
[Music] In Luxor’s Karnak Temple, Colleen is hunting for clues that explain Ramsay’s rise to power. Ramses was a mighty warrior and general who fought in many campaigns and expanded Egypt’s borders to the east and south. But the temple walls suggest that’…
This 18th Century Gold Rush Changed How the World Pans for Gold | National Geographic
Gold is the most powerful metal on earth, and Russia is one of the world’s leading suppliers of it. It all began in 1745 when a peasant named Tiara Fade Markov, while looking for crystal, found something else: a tiny gold speck inside a piece of quartz. H…
There Is No End of Science
That’s an excellent example of what’s called a crucial test, which is sort of the pinnacle of what science is all about. If we do a test and it doesn’t agree with a particular theory that we have, that’s problematic. But that doesn’t mean that it refutes …
Horizontal area between curves | Applications of definite integrals | AP Calculus AB | Khan Academy
So I have two curves graphed here, and we’re used to seeing things where Y is a function of X. But here we have X as a function of Y. In fact, we can write this top expression as being a function of Y, and this second one, just to make it different, we co…