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Machines & tech

The clever tricks inside everyday machines. 38 ready to play, 2 coming soon.

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Machines

How Amazon delivery works

Follow one box from the click to your front door in about a day.

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Machines

How hybrid cars work

Drive, brake and coast while power flows between engine and battery.

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Machines

How a heat pump works

Step through the loop that moves heat instead of making it.

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Machines

How solar panels work

Catch sunlight in a silicon sandwich and push electrons through a wire.

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Machines

How electricity works

Close the switch and follow the push that lights the bulb.

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Machines

How airplanes fly

Tilt the wing, speed up the air and feel the lift.

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Machines

How AI works

Train a tiny brain on cats and dogs and watch it learn from its mistakes.

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Machines

How the internet works

Chop a message into packets and race them across the world.

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Machines

How magnets work

Line up billions of tiny magnets and feel the invisible pull.

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Machines

How a microwave works

Wiggle the water in your soup billions of times a second.

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Machines

How roller coasters work

Haul the car up once, and let gravity pay for the whole ride.

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Machines

How wifi works

Turn your message into radio waves and bounce it across the room.

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Machines

How noise cancelling works

Fight a sound wave with its exact opposite and hear silence.

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Machines

How sound travels

Bang a drum and follow the squeeze of air all the way to your ear.

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Machines

How GPS works

Time signals from satellites and pin your spot on Earth.

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Machines

How batteries work

Send ions one way inside and electrons the other way round a wire.

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Machines

How a VPN works

Wrap your data in a locked tunnel and send it the long way round.

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Machines

How plastic is made

Turn oil and gas into pellets, then into almost anything.

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Machines

How computers work

Flip billions of tiny switches to turn on and off into games and videos.

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Machines

How 3D printers work

Build a toy boat one hair-thin layer at a time.

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Machines

How rockets work

Push gas down fast and watch the rocket go up.

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Machines

How a refrigerator works

Carry heat out of the box with a loop of cold, fizzy fluid.

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Machines

How soap works

Grab grease with one end and water with the other.

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Machines

How cameras work

Catch light through a lens and flip the world upside down.

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Machines

How nuclear energy works

Split an atom, boil water, spin a turbine.

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Machines

How Bluetooth works

Hop between 79 radio channels 1,600 times a second.

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Machines

How glass is made

Melt sand at 1,700 °C and freeze it before it can crystallise.

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Machines

How paper is made

Turn a tree into a soup of fibres and press it into sheets.

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Machines

How mirrors work

Bounce light off a layer of metal thinner than a hair.

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Machines

How hearing aids work

Catch sound, boost it and deliver it just right.

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Machines

How a compass works

Follow a tiny magnet that always points north.

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Machines

How popcorn pops

Heat a kernel until the water inside explodes it inside out.

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Machines

Why airplane windows are round

Find out why square windows caused trouble.

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Machines

How silk is made

Unwind a single cocoon into a thread a kilometre long.

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Machines

Where sugar comes from

Squeeze sweet crystals out of a giant grass and a root.

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Machines

How steel is made

Turn rusty rock into the metal holding up skyscrapers.

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Machines

Where rubber comes from

Tap a tree for sticky milk that becomes a bouncy ball.

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Machines

How an MRI works

Use giant magnets to take pictures inside your body.

Soon
Machines

How the periodic table works

Line up the elements by protons and watch families appear.

Soon
Machines

How lab-grown diamonds are made

Grow a real diamond in weeks instead of a billion years.