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Who's Holding the Other Two-Thirds? (Physics Level 8)
Season 3 Episode 17
We're going to find the one rule that makes that possible, and it fits in three words: force times distance. Then we'll find out what that rule secre…
1 day, 3 hours ago
The Horse Watt Rounded Up (Physics Level 8)
Season 3 Episode 16
We're going to follow Watt as he tries to put a price on a horse's effort, and that will show us exactly what work and power are. Then we'll open you…
1 day, 3 hours ago
The Flask That Doesn't Know Anything (Physics Level 8)
Season 3 Episode 15
It doesn't know anything. It just blocks every road heat can travel, and there turn out to be two kinds of road: one you can block by taking stuff aw…
1 day, 3 hours ago
Where Your Phone Battery Actually Goes (Physics Level 8)
Season 3 Episode 14
Here's the deal: we're going to follow every single joule out of a dying phone and find out where it actually goes. Then we'll hit a weirder question…
1 day, 3 hours ago
The Mars Bar and the Power Station (Physics Level 8)
Season 3 Episode 13
We'll follow one Mars bar from the wrapper into you, then follow the same idea into a power station. By the end you'll know why some energy runs out …
1 day, 3 hours ago
The Magnet That Never Arrives (Physics Level 8)
Season 3 Episode 12
This episode chases one idea: a magnet with an off switch. First we'll see what you can do by switching it on and off, then what happens when you fli…
1 day, 3 hours ago
Why the North Pole Is Secretly South (Physics Level 8)
Season 3 Episode 11
We're going to work out why the North Pole is secretly a south pole, using nothing but the rules of magnets. Then we'll find out that the Earth isn't…
1 day, 3 hours ago
The Night a Prankster Rewired Your House (Physics Level 8)
Season 3 Episode 10
We're going to run your house wired the wrong way, watch it fall apart, then rewire it the right way. Along the way you'll get the two rules electric…
1 day, 3 hours ago
Why the Pigeon Doesn't Fry (Physics Level 8)
Season 3 Episode 9
The bird's secret is that a volt isn't something a wire has. It's a difference between two points. We'll chase that idea until it gives us one equati…
1 day, 3 hours ago
Stuck Charge, Moving Charge (Physics Level 8)
Season 3 Episode 8
We're hunting for the one difference between those two. First we'll make charge pile up and stay put, then we'll let it go and count it as it moves, …
1 day, 3 hours ago