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TED-Ed
Questions No One (Yet) Knows the Answers To
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1
7:13
How big is infinity? - Dennis Wildfogel
by TEDEducation 558,731 views
View full lesson: http://ed.ted.com/lessons/how-big-is-infinity
Using the fundamentals of set theory, explore the mind-bending concept of the "infinity of infinities" -- and how it led mathematicians to conclude that math itself contains unanswerable questions.
Lesson by Dennis Wildfogel, animation by Augenblick Studios. -
2
7:28
Calculating the odds of intelligent alien life - Jill Tarter
by TEDEducation 143,146 views
View full lesson: http://ed.ted.com/lessons/calculating-the-odds-of-intelligen
t-alien-life
Could there be intelligent life on other planets? This question has piqued imagination and curiosity for decades. Explore the answer with the Drake Equation -- a mathematical formula that calculates the possibility of undiscovered life.
Lesson by Jill Tarter, animation by TED-Ed. -
3
12:08
Questions no one knows the answers to (Full Version) - Chris Anderson
by TEDEducation 962,855 views
View full lesson: http://ed.ted.com/lessons/questions-no-one-knows-the-answers
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In the first of a new TED-Ed series designed to catalyze curiosity, TED Curator Chris Anderson shares his boyhood obsession with quirky questions that seem to have no answers.
Lesson by Chris Anderson, animation by Andrew Park. -
4
2:11
Questions no one knows the answers to - Chris Anderson
by TEDEducation 289,727 views
View full lesson: http://ed.ted.com/lessons/questions-no-one-knows-the-answers
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In the first of a new TED-Ed series designed to catalyze curiosity, TED Curator Chris Anderson shares his boyhood obsession with quirky questions that seem to have no answers.
Lesson by Chris Anderson, animation by Andrew Park. -
5
4:43
How many universes are there? - Chris Anderson
by TEDEducation 280,724 views
View the full lesson: http://ed.ted.com/lessons/how-many-universes-are-there
The fact that no one knows the answer to this question is what makes it exciting. The story of physics has been one of an ever-expanding understanding of the sheer scale of reality, to the point where physicists are now postulating that there may be far more universes than just our own. Chris Anderson explores the thrilling implications of this idea.
Lesson by Chris Anderson, animation by Andrew Park. -
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6:04
Why can't we see evidence of alien life? - Chris Anderson
by TEDEducation 501,117 views
View the full lesson: http://ed.ted.com/lessons/why-can-t-we-see-evidence-of-alien
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Stand by for an animated exploration of the famous Fermi Paradox. Given the vast number of planets in the universe, many much older than Earth, why haven't we yet seen obvious signs of alien life? The potential answers to this question are numerous and intriguing, alarming and hopeful.
Lesson by Chris Anderson, animation by Andrew Park.
