ELI5: How hair dryer works?

A hair dryer works by blowing hot air onto your wet hair to help the water evaporate faster.

Imagine you're playing outside on a sunny day, and you spill water on your clothes. They will dry faster if the sun is shining, right? A hair dryer is like a mini-sun and a strong wind for your hair!

Here's how it works inside:

• First, the hair dryer sucks in air from the back. Think of it like you taking a deep breath.
• Then, this air passes over a heating element. This element is like a tiny toaster inside the dryer. It gets super hot when you plug it in.
• The air gets warmed up by the hot element. So, the air becomes hot air.
• A fan, powered by a little motor, blows this hot air out of the front of the hair dryer. This is like you blowing on hot soup to cool it down faster.

• The heat makes the water in your hair turn into a gas (steam) more quickly. Just like the sun helps your wet clothes dry faster, the heat from the hair dryer helps the water in your hair evaporate.
• The blowing air pushes the water vapor (the steam) away from your hair, making room for more water to evaporate. It's like when you open a window to let the stuffy air out of a room.