Answers to Science Questions

Why is memory triggered by smells and music etc?

When I got towards retirement age, I started to get hairs growing out of my nose and my ears. Why?

Why do genetic diseases sometimes only develop in later life?

Is gravity around the planet constant? If you have a spinning ball and put a penny on it, it will be thrown off at the...

I cracked open a large chicken egg this morning and out came the white, an egg yolk, and another fully-formed shelled...

I've come across a website for a gas made using water, that ignites but is not hydrogen. I was wondering what your...

I've thought about it many times, but why is it that some people can memorise more things than other people? Is it...

When fruit is rotting in a bowl, you get horrible black flies coming out of them. How do they get there?

Why does the moon look larger on the horizon?

In your programme about allergies, you mentioned that the cause of cat allergy is the saliva in their skin. Could you...

How do magnets work when they're used to treat injuries such as a frozen shoulder?

Why does the sweat of some people's underarms turn their shirts yellow?

The Earth's core is basically molten and the Earth is in the region of four billion or so years old. How come it...

If all these bats are whizzing about and making all these noises, how do they not fly into each other? How do they know...

If bats can do this, why aren't aeroplanes equipped with the same sort of things?

I have very sensitive hearing and I don't like sudden loud noises or repetitive sounds. I am also very sensitive...

Is it true that sound travels further in cold weather than in warm weather and how does this work?

Why is it that when you're in a car and going past a bunch of other parked cars all in a long row, you hear a...

Some washing powder manufacturers are starting to recommend that we wash our clothes at 30 degrees centigrade instead...

What's glaucoma?

I'm very short sighted, but over the years I've started to suffer from a astigmatism. I'd like to know...

I've got diabetic retinopathy in both eyes and I was wondering if there was any evidence that if you get your...

Why can't I recognise a face that I've known for many years upside down?

Why is it that we're perfectly comfortable with black and white movies and photographs when we know that the world...