How do you know when boiled eggs are done?

You can tell if an egg is hard-boiled by spinning it.

According to a YouTube video titled "How to Tell if an Egg is Hard Boiled or Raw", the following method can be used to determine if an egg is hard-boiled or raw:

• Spin the egg.
• If the egg spins easily and quickly, it is hard-boiled.
• If the egg spins slowly or barely at all, it is raw. Do not crack it!