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Episode 5: The Calling

The Calling

Season 4 Episode 5
53:05
When Whales Could Walk

When Whales Could Walk

Season 51 Episode 1
53:31
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Physics Girl

Why RED BUBBLES are impossible… or are they?!

Season 4 Episode 30

Take a look at a bubble and you’ll see all the colors of the rainbow... right? WRONG. Bubbles are actually missing colors!