Poke it, drag it, get it.
Interactive, narrated explainers that show you how things really work, one "aha" at a time.
- 1Research it from trusted sources
- 2Think it through to find the clearest picture
- 3Make it playable so it clicks for you
Explainers
Each one is a narrated tour you can pause at any moment to play with. New ones land every day.
Why ice floats
Freeze water and watch its molecules lock into an airy honeycomb.
How trees grow
Add a new ring every year and lift water 100 metres high.
What causes ocean currents
Follow the great ocean conveyor belt around the world.
Why the ocean is blue
Dive down and watch red light vanish first.
How Earth was formed
Crash dust and rocks together until a glowing planet takes shape.
Why Mars is red
Rust a whole planet with a dusting of iron.
How astronauts sleep in space
Zip into a sleeping bag tied to the wall and float off to sleep.
Why Saturn has rings
Crumble a moon too close to a giant planet and spread it into rings.
What causes goosebumps
Flex hundreds of tiny muscles you never knew you had.
How jellyfish reproduce
Meet an animal that can start life as a tiny stalk.
How starfish regrow their arms
Lose an arm, grow it back.
Why wolves howl
Send a message across miles of forest with one long note.
How Amazon delivery works
Follow one box from the click to your front door in about a day.
Why airplane windows are round
Find out why square windows caused trouble.
How roller coasters work
Haul the car up once, and let gravity pay for the whole ride.
How a microwave works
Wiggle the water in your soup billions of times a second.
How banks make money
Follow your savings as they turn into someone else's loan.
How compound interest works
Start at 25 or at 35? Drag the years and feel the difference.
How credit cards work
Tap, borrow, pay back and see what interest really costs.
How a bill becomes a law
Steer an idea through Congress, past committees and a veto pen.
Why Mendel studied pea plants
Count peas and discover how traits are passed down.
How the Cold War ended
Follow the thaw from nuclear standoff to the fall of the Berlin Wall.
Why the Roman Empire fell
Stack up the pressures, from borders to money, and watch the West crack.
How the pyramids were built
Drag a two-ton block up the ramp and count the crew you need.