What we know today about global greenhouse gas emissions is mostly self-reported by countries, and those numbers (sometimes tallied manually on paper!) are often inaccurate and prone to manipulation. If we really want to get serious...

For a long time, we could only guess what color a dinosaur might be. But in the past decade, there has been an explosion of color.

In recent years, scientists have come up with new ways to hack the physics of light, to invent the most powerful microscopes the world has ever seen.

Coming up with brand new drugs is all about pinpointing and exploiting a disease’s weakness. A big part of perfecting drug design will be learning to predict how proteins get their shapes because that has everything to do with how both...

You might love your good, sweet pupper, but can you ever truly be sure if they love you back?

In this episode of Crash Course Film History, we talk about the development of the language of films by filmmakers like Edwin S. Porter and his films; Life of an American Fireman and The Great Train Robbery.

So we've talked a lot in this series about how computers fetch and display data, but how do they make decisions on this data? From spam filters and self-driving cars, to cutting edge medical diagnosis and real-time language translation,...

An estimated 20 million cases of blindness worldwide are caused by cataracts, a curable condition affecting the lens that focuses images onto the eye's retina. But how are cataracts formed, and how can we prevent them? Andrew Bastawrous...

About 10,000 years ago, hunter-gatherers, aided by rudimentary agriculture, moved to semi-permanent villages and never looked back. With further developments came food surpluses, leading to commerce, specialization and, many years later...

Humans can go inside or put on clothes, but trees spend winter naked in the cold. Why don't they all die?

Dialogue, pacing, description, reflection, and incorporating multiple plot lines are narrative techniques writers use to add detail and depth to their stories. Understand each of these techniques and learn how to use them effectively in...

From "Cloud Seeding" to hurricane dissipation, this is the history of human weather modification.

This video discusses various narrative techniques, such as flashback, foreshadowing, description, dialogue, and multiple plot lines.

This Civics and Government instructional video discusses propaganda techniques.

Dialogue, pacing, description, reflection, and incorporating multiple plot lines are narrative techniques writers use to add detail and depth to their stories. Understand each of these techniques and learn how to use them effectively in...

How Heart Disease And Depression Are Related

How to Avoid Overuse Injuries in Kids

Howcast - Learn three photography techniques from professional photographer Chris Ryan in this Howcast video.

Howcast - Learn how to crochet a baby blanket from Lion Brand Yarn's Andrea Lemire in this Howcast video.

Howcast - Learn how to crochet booties from Lion Brand Yarn's Andrea Lemire in this Howcast video.

Howcast - Learn the top seven techniques for making handmade jewelry from jewelry designer Courtney Gray in this Howcast video.

Howcast - Learn five muscle building tips, tricks and techniques from expert Skip La Cour with this Howcast bodybuilding video.

Howcast - Learn all about surface piercings from professional piercer Owen Beane in this Howcast video.

Howcast - Learn four brush stroke techniques for painting with acrylic paint from painter Linda Rhea in this Howcast video.