Tag: hank green

Social Influence: Crash Course Psychology #38

Social Influence: Crash Course Psychology #38

By Micah Moen 100 Comments August 24, 2019

If someone in a position of authority told you to like, stop walking on the grass, you would stop walking on the grass, right? And if they told you to help someone’s grandma cross the street, or pick up your dog’s poop, or put your shoes on before you go into a store, you’d probably […]

Are 1,000,000 Species Really Going Extinct? What Can We Do About It?

Are 1,000,000 Species Really Going Extinct? What Can We Do About It?

By Micah Moen 14 Comments August 24, 2019

Welcome back to Nature League! One of the ways that I try to think and feel about life on Earth is through the lens of current events and news reports. Something as simple as looking at trends for key search terms online can give me an idea of the way that stories and themes are […]

The Strange Scourge of Light Pollution

The Strange Scourge of Light Pollution

By Micah Moen 100 Comments August 23, 2019

In January 1994, a 6.7-magnitude earthquake knocked out power in Los Angeles. In the following hours, emergency services fielded an alarming number of phone calls from people asking if the big silvery cloud hovering in the night sky somehow caused the quake. They were referring to the Milky Way. Which is maybe a little sad […]

Why Megalodon (Definitely) Went Extinct

Why Megalodon (Definitely) Went Extinct

By Micah Moen 100 Comments August 22, 2019

About 8 million years ago, a little baleen whale was swimming in the warm coastal waters of Peru. It was only about 3 or 4 meters long, about the size of a Beluga whale, and while it filtered mouthfuls of plankton-rich water, it was unaware that just below it swam a predator. Like the great […]

When the Synapsids Struck Back

When the Synapsids Struck Back

By Micah Moen 100 Comments August 22, 2019

Thanks to CuriosityStream for supporting PBS Digital Studios It’s 252 million years ago, and the world is on the cusp of the worst disaster it would ever experience. 70 percent of all life on land is about to vanish. But one of the very-lucky very-few that will survive is an animal called Thrinaxodon. It’s about […]

Endocrine System, Part 1 – Glands & Hormones: Crash Course A&P #23

Endocrine System, Part 1 – Glands & Hormones: Crash Course A&P #23

By Micah Moen 100 Comments August 18, 2019

I’ve invited you all here today because I wanted to talk to you about some ugly stereotypes that are going around. I’ve been hearing a lot of unfair, unseemly, and unscientific generalizations being made lately. And they mostly have to do with sex. And your hormones. People have a nasty habit of equating “hormones” with […]

Water – Liquid Awesome: Crash Course Biology #2

Water – Liquid Awesome: Crash Course Biology #2

By Micah Moen 100 Comments August 17, 2019

Hello there. Here at Crash Course HQ we like to start out each day with a nice healthy dose of water in all it’s three forms. It’s the only substance on all of our planet earth that occurs naturally in solid, liquid, and gas forms. And to celebrate this magical bond between two hydrogen atoms […]

Biological Molecules – You Are What You Eat: Crash Course Biology #3

Biological Molecules – You Are What You Eat: Crash Course Biology #3

By Micah Moen 100 Comments August 17, 2019

Hello, and welcome to the kitchen. I wanted to invite you here today because last week we started off in my bathroom and kinda feel bad about that. And also because as I’m making lunch today I wanted to sort of use it as a lab. During this time in my kitchen I’m going to […]

Utilitarianism: Crash Course Philosophy #36

Utilitarianism: Crash Course Philosophy #36

By Micah Moen 100 Comments August 17, 2019

Should Batman kill the Joker? If you were to ask the Dark Knight himself, with his hard-and-fast no-killing rule, he’d say absolutely not. Actually, in fact, he would say: [Batman voice] “Absolutely not.” When you think about it, dude is pretty Kantian in his ethics. Regardless of what Joker does, there are some lines that […]

Great Glands – Your Endocrine System: CrashCourse Biology #33

Great Glands – Your Endocrine System: CrashCourse Biology #33

By Micah Moen 100 Comments August 16, 2019

Hormones! Those things that make teenagers moody and miserable, and they cause growth spurts and acne, and they can make a perfectly normal student totally obsessed with his algebra teacher. Not that I have any real, boots-on-the-ground experience with that last one. But all that mayhem is just the handiwork of your sex hormones. The […]