How Many Countries Are There?

CGP Grey · 5,263,980 Просмотры
Countries country countries.


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Chris Hokanson
Will, the Rith King
Kyle Whitehouse
Bjoern Schumacher c/o bscon
Daniel O'Connell
Caleb Hiddleson
Hamish Mackinnon :) (with one leg)
Bernadette Sisk
Steve Dutfield (@SteveDuts)
His Royal Highness King Samy II Son of Hamed I of the Original Greek City of Philadelphia.
Patrick W. Gilmore
Tsyren Balzhanov
John Levin
EratosthenesdeCyrene (Miguel Rothe)
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Greg Leask
Ivan Garcia
Ivan Garcia
Conan Kudo (ニール・ゴンパ)
Greg Carlson
David Buchanan
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Liana Marinescu
Kellie Curtis Malone

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American Empire

American Empire

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Alex Perelgut
Keyan Halperin
Robin McGhee
Dragos Dumitrescu
Adam Miller
Andrew Hawling
Bryan Crockett
Tom Sommerville
Damien Polglase
Andrew Escobar
Sam Duckworth

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How Hot Can It Get?

How Hot Can It Get?

Links to everything:

Thanks to
for their guidance on this video!

All music (except for the classical in the beginning) by Jake Chudnow:

Human body temperature:


wbeaty's videos:

sun and pinhead fact is from this book:

PLASMA IN MICROWAVE inside my temperature leanback:

Calculate wavelength based on temperature:

WR 104:

These are great discussions of absolute hot if you want to read more:

Temperature wikipedia:


Are you brighter than the sun?:


check out the Hagedorn temperature:

****Awesome Russian Guest Stars****


And also negative ABSOLUTE temperatures:
What If We Built a Road Around the World?

What If We Built a Road Around the World?

Go watch Half As Interesting's first video here:

What if we constructed a road around the world that connected most of Earth's continents? It'd be cool to drive from Europe to North America and some other places... I guess

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Videos explaining things. Mostly over topics like history, geography, economics and science.

We believe that the world is a wonderfully fascinating place, and you can find wonder anywhere you look. That is what our videos attempt to convey.

Currently, we try our best to release one video every week. Bear with us :)
Who Owns Antarctica? (Bizarre Borders Part 3)

Who Owns Antarctica? (Bizarre Borders Part 3)

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What Does Earth Look Like?

What Does Earth Look Like?

Follow Michael Stevens:

Dr. Julian Bayliss' rainforest story:

Cool video from CGPGrey: "How Many Countries Are There?"

upside-down map:

INTERACTIVE projection site:


Mercator Puzzle:

xkcd on maps:

Earth "live":

interactive gnomonic:

West Wing MAPS clip:

Earth from Mars:

Earth from Saturn:

"look" etymology:

wave on a string simulation:

Hi-res electromagnetic spectrum:

Earth under different light:

Moon's shadow on Earth:

Bad Astronomer on twitter:

Africa compared to big countries:

Map projection info:

What we used to think Earth looked like from space:

Earth is not a perfect sphere: