Visual Learning

Two props spin one way, two the other. That is the whole trick.

A 135 g drone that lifts off your palm and measures the gap under it.

23 million pixels on two screens the size of a postage stamp.

Screwed shut for 300 m, wound by your wrist, ticking 8 times a second.

A screen hidden in the lens, and a band that reads your wrist muscles.

5.1 mm thin, with two OLED layers lighting every pixel.

A box the size of a sandwich that runs a 200-billion-parameter AI.

12 motors, 5 pairs of eyes, and it gets back up when it falls.

It spots a sock, unfolds an arm from its lid and drops the sock in the basket.

It turns its waist all the way round and gets up in ways no person can.

Three wheels pick each other up. That is why it goes right, left, right.

The dish never turns. The beam does, from satellite to satellite.

The controllers snap on with magnets, then slide off and work as a mouse.

Paddles, DRS, a pit limiter and a quick release, in about 1.3 kg of carbon.

The trigger pushes back: a tiny motor fights your finger.

A camera on magnets, 30,000 dots and 19 billion switches in 8 mm.

Your trackpad has never clicked. And there is no fan inside.

92 billion transistors, and the air goes straight through the card.

The power button is on the bottom. Here is everything else inside.

It reads your pulse with green light flashing hundreds of times a second.

They cancel noise by playing more sound, 200 times a second.

A spring let go 8 tiny steps a second, 691,200 ticks a day.

43 quintillion positions, and why it never falls apart.

The photo develops outside the camera, in about 12 minutes.

The ringed atom is from 1913. Here is what physics says now.

Wax that is heavy when cold and light when warm, and one 25 W bulb.

Why the bunny slips 17 times, and who decides the 18th.

Measure the speed of light with a chocolate bar.

Where 9 bar comes from, and why a spring is enough to make it.

Four strokes, one spark, 1,600 small bangs a minute at idle.

Why the snack hangs, and how the machine knows it never fell.

What 1,400 rpm does to wet socks, and why there's concrete inside.

Why bread sits at 100 °C before it starts to brown.

Two cutters orbit the pencil like planets around a sun.

A light and a sensor that are never allowed to see each other.

It doesn't make cold. It carries heat out the back.

6 designs, and how many turns it takes to own all of them.

No ink inside: tiny heaters turn dye into gas.

No engine on the train: one 60 m climb pays for the whole ride.

Why the motor lifts only 40 kg, and what happens if the ropes go.