Answers to Technology Questions

I've been following the progress of solar panels and hear that they're only about 16% efficient. What's...

How long would a flip in the Earth's magnetic field take, and how might it affect technology?

I'm curious about this digital era we've gone into. If you watch the television on digital signal, the clock...

How does a lie detector work?

Whenever you replace tyres on your car, you notice that the tread has worn away. Where does all the rubber go? You don...

I was just wondering what grenades are made out of, and why does it take a while to go off after the pin is taken out?

How dependent are we on satellites? If somebody put a computer bug in them, what would happen?

Why did we send dogs into space?

When will there be radar controlled brakes on cars?

I was fitting a multi-fuel burner in the living room and want to know where to fit the carbon monoxide detector. Should...

I have recently bought these cool hand warmers that are filled with a gel and a metal disc. When you bend the metal...

When you snap a glowstick, what makes it glow?

What's the difference between fuel sold in the winter and in the summer?

How does a light bulb work?

I haven't heard anything for about 6 months about drilling into Lake Vostok. I was wondering how people were...

Could bomb testing make the world fall apart or cause tsunamis?

Can you still get brain damage even if your mobile phone is switched off?

What does the word bionic actually mean and how would a bionic object be incorporated into the body?

I want to say that I'm very much in favour of the work Kevin is doing. I think it's great to look into...

When do you think it will be possible to experience direct input into the brain and will we be able to have false...

Can you use spectroscopy to spot whether ID cards are real, or faked on a home printer?

How does breathable waterproof clothing work?

why can't you tune into TV programmes on the radio?