Human Biology

Why does rain make us feel cozy?

How things work

Why does nail polish stay liquid in the bottle but quickly dries once applied to nails?

Science and Technology

Why are screen resolutions like 1920x1080 rather than 2000x1000?

How things work

Why does rain fall in a constant downfall instead of one giant burst dropping the water?

World

When did "Hands up!" become "Hands behind your head!"?

Living Creatures

How do small insects not get hurt by raindrops?

Science and Technology

How does a database handle huge amounts of data that can be retrieved within a second?

Science and Technology

How did E = mc² become a famous equation?

Planet Earth

What determines if a plant is a fruit or a vegetable?

Science and Technology

Why do electronic devices which have gotten wet, stop working even when they are completely dry?

Science and Technology

What is the difference between ketchup and tomato sauce?

How things work

What does it take to convert matter into energy, and would it cause an explosion?

Human Biology

How does deodorant work, and why it stops working after a few hours?

Living Creatures

How complex are animal "languages"?

How things work

How does Einstein's Theory of Relativity work?