Question of the Week

Why does a piano's A sharp sound different to a trumpet's A sharp?

In fairy lights the blue ones can be harder to resolve: why?

Why do missiles in films make a descending sound as they fall?

Does one or two steps at a time require more energy, and which is better for a work-out?

Can HIV be transferred through a mosquito bite?

Is it better to throw your old bulbs out immediately, or only as they break?

When we drink a cup of tea, how much of it comes straight back out?

If we put a giant mirror in space, could see Earth a million years ago?

How did birds survive the dinosaur mass extinction?

Listener Tim got in touch to ask: Why do the poles go north-south as opposed to east-west?

Do ants or other insects feel pain in the same way as humans do? And what does it have to do with robots?

What would happen if one could somehow pee standing on the moon?

Water is hydrogen and oxygen, both of which are used in combustion...

Why is it when we break a magnet in half, we get two new magnets?

Why don't you get thrown backwards when you switch on your torch? Kerstin Göpfrich made he

Could a jaunt to Jupiter be the physics-version of anti-wrinkle cream?

Is soap really all it's cracked up to be?

Could testing of nuclear weapons lead to earthquakes?

Could your pet be fooled by fake pills?

Clothes dried on a washing line can end up crunchy and stiff. Why does this happen?

Find out how you can unlearn something that you have already learned!

If we slice the earth in half and leave the inner and outer core intact, like cutting the avocado, what would it look...

The rumbly in our tumbly revealed!

This week, Loot got in touch to ask how the moon got its markings.