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This phenomenon only happens in Hawaii . . . and Cuba & Nigeria & Indonesia & Peru & Sudan & Laos &…
Season 2
Episode 26
3:28
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Physics Girl
Why aren't plants black?
Season 2
Episode 15
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?
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6:25
We check out five of the most unusual stars we've discovered in our universe.

2:51
These holiday-themed experiments will keep you busy during the winter holidays!

5:01
Are these machines possible without violating the laws of physics? No.

6:35
Are there any dangers associated with receiving an MRI? And how exactly does an MRI work?

4:40
Is there a way to prevent getting shocked on the car door?

4:51
You throw a rock in water from your boat. What happens next?

4:24
Watch what happens when we mix ferrofluid with the liquid from a glow stick!

4:50
When you mix red and green, what do you get?

6:19
Let’s take a look back at the most epic space rescues in history.

4:04
Unlike a camera, holograms capture an entire light field to recreate the 3D scene.

5:02
3D movies and TV are is increasing in popularity, but is any of it truly 3D?

3:47
Learn how to make a wispy cloud come out of your mouth, even when it’s not cold out.