Answers to Physics Questions

Would it be practical to build a large vacuum chamber, put the clothes inside, pump the air out and therefore lower the...

Every action has an equal and opposite reaction, so how much force is produced by urination? Could it knock someone...

Why is it that, even though I have light brown hair, when I get into the shower or hot spring my hair turns darker?

My girlfriend and I were talking about flying in a plane and the fact that the higher you go, the colder it gets. How...

If water freezes at zero, we get frost at three degrees C?

Why is it that car front windscreens appear more prone to icing than the sides and the rear? This is even when the car...

Why does 27 degree air feel hot but water of the same temperature feels cold?

Mirrors reflect visible light. But how effective are they at reflecting other electromagnetic waves like x-rays and...

Is it dangerous to live 500 metres away from a mobile phone mast?

If you could drill a hole from the North Pole to the South Pole, and it was big enough to drop a stone through, would...

We can successfully insulate against heat, and against light, and against sound. Is it possible, do you think, that we...

I'm right in thinking that matter cannot be destroyed. So is it such that everything that has been created in...

The big bang theory... what went bang?

On last week's show you were talking about polonium 210 being difficult to obtain but in fact anyone can buy it...

What happens if you fire a two bullets from an aircraft moving at 1000mph? One is fired forwards at 1000mph and the...

If space has a curvature and is expanding outwards, how long before it goes around in a circle and kicks us up the...

Sometimes when I put my beer (330mL glass bottle) in the deep freeze to rapidly chill it, I can take it out and it...