How to Get Started, Doing Things that Don't Scale, and Press (How to Start a Startup 2014: 8)

Hi, I’m Megan from Khan Academy, and in this video, we’re going to walk you through the learner or student experience at Khan Academy. We believe that everyone is a learner; from the teacher perspective, all of your students are learners, and you can be a…

We’re told the following equation is true for all real values of Y for which the expression on the left is defined, and D is a polynomial expression. They have this equation here; what is D? All right, so essentially what they’re saying is they don’t wan…

How many countries are there? Easy: just grab a map and start counting, yes? No. Not all maps are created equal – borders will differ depending on who you got the map from. So if individuals disagree, then surely a committee will save the day. Go to the U…

The year is 1665, and Isaac Newton is looking out his window at an apple tree standing tall in his orchard in Lincolnshire, England. All of a sudden, a ripe and lonely apple falls from the tree and makes its way to the ground. While most people would cons…

[Music] I’m Dr. Rard Hodes and I’m Dr. Terence Ferguson, but you may know us better as the Creative Fixers. Our job has us taking care of all kinds of animals, but this Earth Month, we’re traveling to Disney Animal Kingdom to meet some adorable additions …

Terrorism is very scary, especially when it happens close to home and not in some faraway place. Nobody likes to be afraid, and we were eager to make the fear go away. So we demanded more security. In the last decade, it’s become increasingly normal for c…