Join the Amoeba Sisters as they introduce the cardiac conduction system! This video mentions conductive cardiac cells (focusing on pacemaker cells) in the SA and AV nodes and discusses general steps of spontaneous depolarization. It also...

There are about 7,000 languages spoken around the world -- and they all have different sounds, vocabularies and structures. But do they shape the way we think? Cognitive scientist Lera Boroditsky shares examples of language -- from an...

In which John Green teaches you about railroads, and some of the ways they changed the world, and how they were a sort of microcosm for the Industrial Revolution as a whole. Prior to the invention of steam powered railroads, pretty much...

In 1643, Johann Wirsung was shot and killed outside his home, but not before he named one of the men responsible. One rumor that has emerged over the years is the man was paid by one of Wirsung's former assistants, who claimed Wirsung...

There's a list of the 500 most powerful computers on Earth, and we're downloading the details on the top five.

In a small town in the French Alps, a lot of people started to get the neurodegenerative disease ALS. Could the culprit be mushrooms?

You may have heard of Blue Zones, these isolated pockets of the world where people seem to live into the triple digits way more often than everywhere else. But what's really going on, and does the research say it's as simple as eating...

The famous Irish Potato Famine was thanks to farming practices and p. infestans (among other things). But are the Colorado Potato Beetle and the climate crisis teaming up to bring about the next potato famine? Here's what research suggests.

Between 1485 and 1551, England was hit by at least five epidemics of sweating sickness. But after that, the disease supposedly vanished off the face of the Earth. With fatality rates as high as 90% according to some sources (perhaps...

The Park Grass experiment at Rothamsted Research Centre in England is the world's longest-running ecological experiment. It's also the result of a sort of Victorian Stardew Valley, the enduring friendship between John Bennet Lawes and...

Ivermectin does not work against COVID-19. However, it is almost a miracle drug when it comes to treating parasites. Doctors want to know if they can use ivermectin to prevent malaria. Here's how it's going.

You've probably heard that processed foods are bad for you. But is that true for all of them? And how do we know?

Throughout history, humans have come up with some pretty weird ideas related to longevity. Like drinking neurotoxic mercury to live forever, slathering yourself in oil and eating honey to reach the ripe old age of 300, or getting an...

Do animals exercise? Think about it -- do animals need to lose weight, or train for their big migration? We'll look at a few definitions of exercise and see if animals meet the criteria for hitting the gym.

Rocky bodies like moons, asteroids, and comets are chock full of resources, from water, to helium-3, to rare earth elements. But how can we access them? Some scientists have proposed using microbes to aid in the mining of certain metals.

More and more people under 50 are being diagnosed with colorectal cancer. These young people don’t seem to have any of the usual risk factors for colorectal cancer, like an inherited genetic mutation. after some sleuthing, scientists...

Correction

07:11 We made a conversion error! The asteroid in this sentence should be 95,000 meters or 95 km. The conclusion (water would be deadly hot and sterilized) is cor

rect.

Let's face it: The Earth is going to get...

We all picked up new habits during the COVID-19 pandemic. But not all of them stuck. Here's the data on whether we're better or worse drivers, exercisers, social media community members, neighbors, and self carers than during and before...

Whether or not you think humans should be announcing our presence to the cosmos, we're doing it, anyway. Both intentionally, and not. And if aliens really do exist, there are several ways they could find us. Here are six of them.

If you've got a uterus, you've probably heard of menopause. But there's a lot that doesn't get talked about when it comes to this period, or lack thereof. This video is going to break down the real deal with menopause and give you...

Endometriosis is a disease that affects about one in ten women, and comes from tissue inside the uterus making its way out. But it turns out that's not the only way to get it, because there are people without uteruses who have it too....

Mushroom foragers rejoice! Your lives just got a whole lot easier! Now, we can farm four mushrooms that used to only be found in the wild: morels, huitlacoche, chanterelles, and truffles. Here's why it took so long.

In the middle of the South Pacific lies Point Nemo: the most remote location on Earth. This super isolated spot is home to a graveyard filled not with human remains, but hundreds of broken up spacecraft and satellites. And after more...

In this video Paul Andersen shows you how to analyze and interpret data in a mini-lesson on Data. Two examples are included in the video and two additional examples are included in the linked thinking slides. <br/>