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Mineral Extraction: Crash Course Geography #44

Adults Construction
Today we're going to take a look at mineral extraction -- or the removal of rocks and minerals from the Earths' crust -- and examine how this human activity impacts all aspects of Geography.

Empty Skyscraper In Times Square

Adults Construction
Why There’s An Empty Skyscraper In The Middle Of Times Square

How Could We Get To Mars In Only 28 Hours?

Adults Construction
There's a cheat code to getting to Mars. Can humans handle the harsh conditions that space will throw at them?

Why doesn’t the Leaning Tower of Pisa fall over?

Adults Construction
Dig into the 800 year history and architecture of the Leaning Tower of Pisa and find out what gives the tower its infamous tilt.

Primitive Technology: 4 years of primitive technology

Adults Construction
4 years of primitive technology.

Engineering with Origami

Adults Construction
Origami is inspiring a plethora of new engineering designs.

World's Lightest Solid!

Adults Construction
Aerogels are the world's lightest (least dense) solids. They are also excellent thermal insulators and have been used in numerous Mars missions and the Stardust comet particle-return mission.

Why Are 96,000,000 Black Balls on This Reservoir?

Adults Construction
I took a boat through 96 million black plastic balls on the Los Angeles reservoir to find out why they're there.