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Why aren't plants black?

Why are plants green? Is there a reason plants evolved to be green, globally? What does it have to do with the color of the sunlight coming down through our atmosphere?
Season 2 Episode 15 Length 06:32 Premiere: 02/22/17

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Season 2 Episodes

My Path into Physics (at MIT)
S2 E32 Length 10:46 Premiere Date 09/21/17

FIRE IN FREEFALL - rare physics experiment
S2 E31 Length 06:09 Premiere Date 09/13/17

5 LIFE HACKS BASED ON SCIENCE
S2 E30 Length 06:03 Premiere Date 08/30/17

Craziest eclipses in the solar system
S2 E29 Length 04:36 Premiere Date 08/10/17

Can you guess this note? Perfect Pitch and Physics
S2 E28 Length 08:23 Premiere Date 08/02/17

Mantis Shrimp Punch at 40,000 fps! - Cavitation Physics
S2 E27 Length 06:14 Premiere Date 07/27/17

This phenomenon only happens in Hawaii . . . and Cuba & Nigeria & Indonesia & Peru & Sudan & Laos &…
S2 E26 Length 03:28 Premiere Date 07/13/17

Strange Unexplained Cosmic Rays (ft PhD Comics)
S2 E25 Length 06:57 Premiere Date 06/21/17

This crystal can split light particles
S2 E24 Length 06:05 Premiere Date 06/14/17

MIND-BOGGLING HIKER RIDDLE ft Anne Wojcicki
S2 E23 Length 03:53 Premiere Date 05/24/17

NEW RESULTS! Cosmic Quantum Bell Test
S2 E22 Length 10:32 Premiere Date 05/11/17

Zero G Ferrofluid Fail - (ft. e-penser & Veritasium)
S2 E21 Length 10:48 Premiere Date 05/03/17

Why outlets spark when unplugging - EMF & Inductors
S2 E20 Length 06:30 Premiere Date 04/19/17

Oxygen is magnetic?!
S2 E19 Length 05:20 Premiere Date 04/05/17

Can you solve the $20 riddle? ft SMBC Comics' Zach Weinersmi
S2 E18 Length 10:31 Premiere Date 03/28/17

The Unusual Formation of the Hawaiian Islands
S2 E17 Length 08:32 Premiere Date 03/16/17

Everything you should know about TRAPPIST-1 exoplanets
S2 E16 Length 11:21 Premiere Date 03/01/17

Why aren't plants black?
S2 E15 Length 06:32 Premiere Date 02/22/17

Can you solve the burning stick riddle? ft Simone Giertz par
S2 E14 Length 08:03 Premiere Date 02/03/17

The Boat/Rock Brainteaser ft Simone Giertz part 2/3
S2 E13 Length 06:31 Premiere Date 02/02/17

Can you solve these physics riddles? ft Simone Giertz - Part 1/3
S2 E12 Length 04:08 Premiere Date 02/01/17

DIY Lightning Experiment! Make a SHOCKING Capacitor
S2 E11 Length 07:41 Premiere Date 01/25/17

My dad was hit by lightning (TWICE!)
S2 E10 Length 07:34 Premiere Date 01/12/17

How to control light with water
S2 E9 Length 10:18 Premiere Date 12/22/16

Solving crimes with infrared?
S2 E8 Length 09:09 Premiere Date 12/07/16

Impossible Zero G Skyscraper
S2 E7 Length 06:33 Premiere Date 12/01/16

Can explosions work in space?
S2 E6 Length 05:42 Premiere Date 11/11/16

5 cool math tricks ft. Technicality
S2 E5 Length 07:19 Premiere Date 11/03/16

The Ultraviolet Catastrophe
S2 E4 Length 06:31 Premiere Date 10/12/16

How do touchscreens work?
S2 E3 Length 06:03 Premiere Date 10/06/16

5 Science Tricks w/ Explanation
S2 E2 Length 07:24 Premiere Date 09/21/16

5 Awesome Science Party Tricks!
S2 E1 Length 04:10 Premiere Date 09/15/16

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