Safari Live - Day 129 | National Geographic

Air pollution is bad for you, and we know that exercise is good for you. But there’s this unanswered question: is exercising in close proximity to traffic enough of a bad thing for you that we should be recommending separating biking lanes from traffic al…

Looks pretty good, what can I say? Bed. When you don’t feel like—do you have a hard time getting out of bed in the morning? Well, I don’t. So in this video, I’m gonna teach you how to be less like you and more like me. That’s not true; I still struggle o…

Are we the only living things in the entire universe? The observable universe is about 90 billion light years in diameter. There are at least 100 billion galaxies, each with 100 to 1,000 billion stars. Recently, we’ve learned that planets are very common …

Have you ever been minding your own business, enjoying the sun, when someone steps in front of you and blocks your sunlight? This is pretty much what happens during a solar eclipse, except on a planetary scale. As Earth revolves around the sun, the moon r…

The table gives selected values of the continuous function f. All right, fair enough. Can we use the Intermediate Value Theorem to say that the equation f of x is equal to 0 has a solution where 4 is less than or equal to x is less than or equal to 6? If …

What’s up guys, it’s Graham here. So, these last 24 hours have been quite a whirlwind because, as of yesterday, a brand new finalized stimulus proposal has just been sent to the House to be voted on this upcoming Friday. And wow! I mean, this has been a d…