Find out how an everyday thing works

Choose something you use daily and learn how it actually works.

Why it helps

We use many things without understanding them. Learning one mechanism reveals the ideas behind a lot of ordinary life.

How to do it

1. Pick an object such as a fridge, zip or search engine.
2. Find a clear explanation, ideally with a diagram.
3. Draw or describe the principle in your own words.

Make it easier

Read one paragraph about it.

Make it harder

Explain it to someone else without notes.