Answers to Science Questions

What is the most efficient way to heat water? Should we just head up what we need as and when we need it, or leave a...

Where on the Earth would you experience the strongest and weakest gravity?

When you look at distant object like stars, the brightness will be controlled by two factors one the luminosity, and...

Why don't potato peelers need sharpening, when all other knives need regular attention to avoid becoming blunt?