Ex-CIA Spy: China Is Preparing & We're Not Paying Attention! Here's What Happens If They Takeover!

Hi everyone, it’s here from Khan Academy, and as some of you all know, I have released my second book, Brave New Words, about the future of AI, education, and work. It’s available wherever you might buy your books. But as part of the research for that boo…

Close your left eye and stare at the X with your right eye. Now don’t look away. Move your phone closer, maybe further away, until my head appears to vanish. You have just found your blind spot: the place on your retina where nerves pass through on their …

The stories that I hear from people that were alive during Apollo—something happened with them when they watched people walking on the moon. It was this understanding that anything’s possible. Those people ended up going on thinking that for sure people a…

So I’d like to introduce you to the most loud-mouthed, over-the-top offensive real estate mogul you’re ever going to meet: Ben Mala. “I bought it because I’m a big fat [__] business, that’s what you worry about.” He is your true rags-to-riches story, hav…

Pollution. When you hear that word, what do you think of? Perhaps dangerous gases are being emitted into our atmosphere, garbage floating around the ocean, sick animals due to toxic food. But there’s another pollutant lurking in our society: an invisible …

[Music] In early 2014, Choreo Studio invited Slovenian photographer Mathias Tan Church to undertake a 3D photography project in North Korea, inspired in part by the country’s own fondness for 3D photography to produce keepsake postcards and public art. Ac…