TED-Ed
How Does Cancer Spread Through the Body?
Cancer's ability to quickly spread from one organ to the next makes it one of the most fatal diseases in recent history. Watch as this short video takes you on a trip into the microscopic world of cancer cells, exploring the...
TED-Ed
Is Our Climate Headed for a Mathematical Tipping Point?
Raising the global temperature by two degrees may not seem like much, but the impact this would have on the planet is amazing. Follow along with this short video as it examines how even a small change to a system can turn its...
TED-Ed
How Do Germs Spread (and Why Do They Make Us Sick)?
Much the chagrin of mothers around the world, germs are everywhere; it's unavoidable. Learn how these microscopic invaders have evolved different ways of spreading from one host to another with this short instructional video.
TED-Ed
Where Did Earth's Water Come From?
It's commonly known that over 70 percent of of the earth's surface is covered by water, but exactly where did it all come from? Join this short video as it travels back to the beginning of the universe in search of the origins...
TED-Ed
The Myth of Arachne and Athena
The tale of Arachne is spun for viewers of a short video that details the fate of the beautiful, vain, young spinner who challenged Athena and was caught in the web of her arrogance.