People have been making the connection between the moon's phases and the menstrual cycle for centuries. But when it comes to controlling periods, we may have been looking at the wrong thing in the sky.



Hosted by: @NotesByNiba...

The moon orbits the earth once per month, which means the moon is on the sun side of the earth every month. So... "why aren't there eclipses every month?" is a question we will answer in this video!

The sun rises in the east, the moon rises in the east, and the stars rise in the east... but solar eclipses, oddly, come from the west. If total eclipses are caused by the sun and the moon, why don't they behave like the sun and the moon?

In which John Green teaches you about World War I and how it got started. Crash Course doesn't usually talk much about dates, but the way that things unfolded in July and August of 1914 are kind of important to understanding the Great...

Eurypterids are rare in the fossil record overall. But when we find these 400-million-year-old "sea scorpions," we find LOTS of them. <br/>

For people living in poverty, a guaranteed income can mean finally having the space to dream of a comfortable life. Sharing the stories of single moms who participated in a first-of-its-kind program that offered them $1,000 per month...

From changing diapers to cleaning up vomit, human parents can have it tough, but at least they don't have to incubate their babies under their skin or liquify their own guts to feed their brood like these animal moms do! In honor of...

Unlike lots of other animals, there’s no such thing as the “mating season” for humans, and it might have to do with how we raise our kids.

In today's episode Hank talks about hair: What's it good for, what's it made of, and why do we have less than other mammals?

The temperature drops and you're more likely to get a cold: Is this correlation or causation?

As prescription drug costs skyrocket in the US, thousands of people are forced to forgo lifesaving medications -- all while manufacturers and health care facilities systematically destroy perfectly good, surplus pills. Kiah Williams...

Hank lays out three of the most awesome discoveries in science in 2013, from the fields of physics, space science and anthropology.

Legendary hip-hop producer Swizz Beatz is on a mission to revolutionize the way artists do business. In this glorious talk, he shares some of the ways he's helping fellow creatives thrive, including a roving art fair that gives artists...

Food already in cupboards, supermarkets, & warehouses could feed humanity for 4 months, but potential food - berries, termites & krill - could extend that by another...

Niti Bhan studies business strategy for Africa's informal markets: the small shops and stands, skilled craftspeople and laborers who are the invisible engine that keeps the continent's economy running. It's tempting to think of these...

Recent proof-of-concept studies showed that researchers were able to survey animals in an area simply by vacuuming up DNA in the air.

In 2013, international migrants sent $413 billion home to families and friends — three times more than the total of global foreign aid (about $135 billion). This money, known as remittances, makes a significant difference in the lives of...

More than 90 percent of children in the US see a doctor at least once a year, which means countless hours spent in waiting rooms for parents. What if those hours could be used for something productive -- like saving money? Through her...

Unlike lots of other animals, there’s no such thing as the “mating season” for humans, and it might have to do with how we raise our kids.

What if every light bulb in the world could also transmit data? At TEDGlobal, Harald Haas demonstrates, for the first time, a device that could do exactly that. By flickering the light from a single LED, a change too quick for the human...

So how can a game teach us about engineering? Pretty easily! When you're trying to solve a game, or a puzzle, or whatever, you will have a bunch of variables. The trick is knowing how to change one variable at a time to see what changes....

The price of insulin in the US is both outrageous and deadly to those who can't live without it. Diabetes advocate Brooke Bennett shares her own struggles living with type 1 diabetes and how the astronomical cost of a life-saving drug...

You’ve probably had some. White lines or spots that appear and grow out with your nails. Why does this happen? There are a few reasons, ranging from bumping your nail to poisoning. Check out his Quick Question to see what might apply to...

Dawn is spiraling in for a closer look at Ceres, and researchers have discovered the best evidence yet for active volcanoes on Venus. Plus, check out Venus and Jupiter right next to each other in the sky!