PBS
Voting Systems and the Condorcet Paradox
What is the best voting system? Voting seems relatively straightforward, yet four of the most widely used voting systems can produce four completely different winners.
MinutePhysics
Ye Olde Debunking
Have you ever wondered where "Ye Olde" spelling comes from? Today we unravel this thorny linguistic issue.
MinutePhysics
What is Sea Level
An oblate spheroid is a special case of an ellipsoid where two of the semi-principal axes are the same size.
MinutePhysics
What are Years... and the Galactic Supermassive Black Hole!
It's leap year time... so what are years, anyway? And what do they have to do with the supermassive black hole in the core of the milky way?
MinutePhysics
TOP 10 REASONS Why We Know the Earth is Round
TOP 10 REASONS Why We Know the Earth is Round
MinuteEarth
Epigenetics: Why Inheritance Is Weirder Than We Thought
Epigenetics: Why Inheritance Is Weirder Than We Thought
MinuteEarth
How To Name A Disease (Like COVID-19)
We’ve changed - and standardized - the way diseases get named because the old way was often stigmatizing and confusing.
MinuteEarth
How Tall Can Mountains Be?
What is the maximum height for a mountain on Earth!? And why?
MinuteEarth
How Risky Are Vaccines?
Want to learn more about the topic in this week's video? Here's a keyword to get your googling started: herd immunity: immunity that occurs when the vaccination of a portion of a population provides protection for individuals who have...
MinuteEarth
How Many Mass Extinctions Have There Been?
Want to learn more about the topic in this week's video? Here are some keywords/phrases to get your googling started: - Mass Extinction Event: a significant, global decrease in the diversity of life - "Big 5": The five biggest mass...
MinuteEarth
How Fighting Wildfires Makes Them Worse
Today's wildfires burn, on average, twice the amount of land they did in 1970. The reason? We've been working too hard to put them out. Want to learn more about the topic in this week's video? Here's a keyword/phrase to get your googling...
MinuteEarth
How Do Trees Survive Winter?
Humans can go inside or put on clothes, but trees spend winter naked in the cold. Why don't they all die?