How It Works
How does a camera work?
Capturing light to freeze an instant. The lens, the sensor, and the exposure trio (aperture, shutter, and ISO) explained simply.
⚙️ How It Works
How It Works
The why and how of things, step by step.
How It Works
How does a car engine work?
The four strokes that turn gasoline into motion: intake, compression, power, and exhaust. The combustion engine explained clearly.
How It Works
How does a barcode work?
Those black stripes that go 'beep' at the checkout hide a number. How the scanner reads the bars with light, and what the digits really mean.
How It Works
How does a refrigerator work?
It doesn't 'make cold': it removes heat. The refrigerant gas cycle that keeps your food cold, explained step by step in a simple way.
How It Works
How does a QR code work?
That square of black and white dots holds information your phone reads instantly. How a QR code works, what it's for, and why it's so resilient.
How It Works
How does an elevator work?
Cables, counterweights and pistons: how an elevator lifts tonnes effortlessly and why it is one of the safest forms of transport there is.
How It Works
How does a touchscreen work?
Your finger's tiny electrical charge is the secret. How a capacitive touchscreen detects your touch, why it needs skin (not a glove), and the main types.
How It Works
How does the internet work?
It's not a cloud: it's a physical network of cables and servers around the world. How information travels, what an IP is, and why there are cables under the sea.
How It Works
How does a plane fly?
The four forces that keep a plane in the air —lift, weight, thrust and drag— explained simply and without the myths.
How It Works
How does GPS work?
A network of satellites and a math trick tell you where you are with meters of precision. How GPS works, what trilateration is, and why timing is key.