The Internet Has Massively Broadened Career Possibilities

In March of 2009, I was working on a documentary about North Korean defectors, people who are fleeing the very desperate conditions in North Korea. During that time, we were filming along the Tumen River. This is the river that separates China and North K…

So I would love to welcome Tenae Tandon onto the stage. Uh, Tenae is the CEO and founder of Othellis, a digital health company that you’re going to be hearing all about. YC first met Tenae when he was 17 years old when he first won YC’s first hackathon. N…

Do you know about how much every single month you would just spend just on yourself? [Applause] Whatever we make, we spend. What’s the most you’ve spent for a video? Like anywhere from 300,000 to—Wow! What’s up you guys, it’s Graham here. So if you’ve sp…

What are all positive values of P such that the series converges? So let’s see, we have the sum from n equal 1 to infinity of ((-1)^{n + 1} \frac{p}{6^{n}}). There’s a couple of things that might jump out at you. This ((-1)^{n + 1}) as (n) goes from 1 t…

Mario backpacks and SLR mount for your iPhone. It’s episode 17 of LÜT. Wear your glasses and shades together in one piece while browsing portal necklaces, Aperture totes, laptop stickers and on and on and on. And here’s a book that shows you how to build…

In this video, we’re gonna think about why we have seasons on Earth like summer and fall and winter and spring. Now, one theory that some folks might have is maybe it’s due to the distance between the Earth and the Sun. We know that the Earth orbits the S…