Answers to Science Questions

Why do you sneeze when you look at the sun?

Does the number of virus particles you have in your body affect the severity or duration of an illness?

You said earlier that you would weigh 13 tonnes if you lived on Jupiter. Would your bones be able to withstand that, or...

My wife has had a letter from the doctor about a flu jab. But it also - that if she has an egg allergy, she's not...

When petrol is spilt on the ground and mixed with water, how come it's so colourful?

Why physical activity and previous sugery may be uneasy bedfellows...

How do we get brain damage?

What's the largest organ in the human body? I think it's the skin but my friend - it's the liver. Can...

How fast can brain cells repair the brain?

Why is the sun so hot?

When mix two colours of paint together, say red and green, you get brown. But if you mix red and green light together,...

Why does it get darker earlier in the winter than it does in the summer?

How does a light bulb work?

How long does it take the sun's rays to reach Pluto?

There's a rhyme that goes 'Red sky at night, shepherd's delight. Red sky at morning, shepherd's...

When I was at school, they taught us that your ears, your nose and your throat were all connected. Why is it that when...

When you yawn, why do your eyes water? Is it normal?

Are bugs that bite the way in which most diseases including HIV are spread?

I found head lice on an elderly lady I was looking after and used a special shampoo that the doctor told me to use. But...

Why do you close your eyes when you sneeze?

When she was younger, she went to chicken pox and mumps parties to spread the illness and build up her immune system....

Can animal fleas live on humans?

If left handed people are made to write with their right hand, will it cause confusion in the brain? I wondered whether...

I was 35 when I realised that I had synaesthesia but no-one in my family has it. I was wondering if it was the brain...