MinuteEarth
How Does Birth Control Work?
There are huge varieties of birth control methods because there are lots of different ways to disrupt the process of sperm-egg fertilization.
MinuteEarth
All Plants Have Color Vision?
Plants can tell when competitors are nearby because they can see them.
MinuteEarth
Why Flushing Isn't For Everyone
Sewers are a great way to make pooping safe, but they’re not always the right solution because they require specific resources that many places just don’t have.
MinuteEarth
Why Do All YouTube Videos Look Alike?
Many crustaceans from all sorts of starting points evolve to end up looking similar, likely due to outside pressures. That’s sort of like what happens with YouTube videos.
MinuteEarth
Why Did It Take Us So Long?
We've long known that animal pollination is an important way plants reproduce on land, but we're only just finding out animals also pollinate plants underwater.
MinuteEarth
The Species That Broke Evolution?
The ancestors of gars, horseshoe crabs and coelacanths looked almost the same as their modern relatives. Darwin called species like these “living fossils'' because they seem like they are evolutionarily frozen in time. But Darwin was wrong.
MinuteEarth
The Crabs Are Coming
As the waters warm in the deep sea around Antarctica, ecosystem-crushing crabs are able to live closer and closer to the continent.
MinuteEarth
Why Monkeys Can Only Count To Four
There’s an island in the Caribbean where David used to perform magic tricks for monkeys. And it was super cool because it suggested that they have the ability to count! (but only up to four)
MinutePhysics
The Last Eclipse in History
We are in the Golden Age of Solar Eclipses, but only for the moment. In fact, I'd argue we're already past peak solar eclipse and it's all downhill from here.
MinutePhysics
Why Aren't There Eclipses Every Month?
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!
MinutePhysics
Which Planet Has the Best Eclipse?
Solar eclipses don't just happen here on earth - moons of other planets also pass between those planets and the sun, resulting in various types of solar eclipses on Mars, Jupiter, Saturn, Uranus, Neptune, and even non-planets like Pluto,...
MinutePhysics
Why Do Eclipses Travel West to East?
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?
MinuteEarth
Why Don't We Eat Carnivores?
Humans eat a lot of different animals, but almost none of them are carnivores - why?
MinuteEarth
Why does the north get more total eclipses?
Solar eclipses can happen anywhere on earth, but if you want to see a total eclipse, you need to go to the far north, because the Earth’s shape and orbit determine the high latitudes and eclipse hotspot.
MinuteEarth
What’s Eating The Titanic?
When a ship sinks, lots of factors, like the ship’s materials, the water quality, and the depth of the seafloor all play a role in determining how long the ship will last down there - as a result, the Titanic will be gone in fifty years,...
MinuteEarth
Weird Things Animals Do During Eclipses
For centuries, humans have reported animals freaking out during solar eclipses, like birds falling from the sky and bees hiding in their hives, but the animals most affected by eclipses might be us.
MinuteEarth
Inside The Sunny Center of a Hurricane
Why is the middle of a hurricane sometimes so clear and calm?
PBS
Astronauts Suni Williams and Butch Wilmore on their longer than expected stay in space
For NASA astronauts Suni Williams and Butch Wilmore, the long wait to return to Earth is almost over. They went to the International Space Station last June in a Boeing Starliner spacecraft. They were supposed to return a week later, but...
PBS
Community colleges gear up to train workers for America’s proposed manufacturing future
In the next decade, millions of manufacturing jobs will open up in the U.S. as workers retire. Meanwhile, the sector is also supposed to add more jobs with help from federal subsidies. But by some current estimates, only half of those...
PBS
Why engineers are turning to beavers for insights into managing water resources
Beavers and the dams they build are not always embraced in the areas where they do their work. But there's a growing recognition that they also are building a kind of natural infrastructure that helps with water management and the...
PBS
Why many in Gen Z are ditching college for training in skilled trades
As the average cost of college in the United States soars, more young people are being drawn to skilled trades. It’s part of a career rethink among members of Gen Z, who have been called the “toolbelt generation.” Special correspondent...
PBS
How San Bernardino is fighting for a comeback after decades of decline
Political scientist Robert Putnam told Judy Woodruff that strengthening the country’s democracy would begin with grassroots efforts by people stepping up in their own communities. Those efforts will be her focus this year and she begins...
SciShow
Dyslexia: When Your Brain Makes Reading Tricky
While many researchers are focusing on finding a difference in brains of people with dyslexia, some new research suggests it might not just be in their brains, but in their eyes.
Crash Course
Taxes: Crash Course Economics
We've been talking about the unavoidables recently. Last time, we covered Death. This time, it's taxes. So, what are taxes? Why do we pay taxes? What is all that tax money used for? This week, Adriene is going to cover all that and more....