Answers to Science Questions

What's the deal with fusion as a power source? Is it ever going to be economically possible? Is cold fusion the...

Sitting in my kitchen which faces west, I can see the sun well up in the sky and I can also see the moon. But the moon...

When I was training to be a nurse, it was drummed into us that vitamin D comes from the sun. If we're all neurotic...

I know that there is a wide range of frequencies in the electromagnetic radiation that comes from the sun. But exactly...

It's my understanding that you can send electricity wirelessly. Although microwaves are apparently the best way,...

How does light actually propagate? I know that there are perpendicular electrical and magnetic fields and that they can...

Does the Sun move and what impact could the movement of the Sun and changes in velocity have on things like other...

Why do you sneeze when you look at the Sun?

I suffer from rhinitis and I have done for a long time. Nobody seems to know if there's a cure going for it yet.

I deal with allergies for a good portion of the spring and summer and my question is: why does my itchy nose and eyes...

My husband developed an allergy to nuts at 32 years old. Is it common to get allergies as you get older or is this more...

I've been suffering from hayfever ever since I was in junior high school, but suddenly two years ago when I was in...

What is it about sleep that makes it so beneficial to us when we're ill? Are we better able to mobilise our...

I am 100% allergic to onion, garlic, leeks, chives and the rest of those allium-based things. What is it about this...

I heard a report that bacteria in our gut and our immune system respond to things in our local environment. So is there...

The common reaction to allergy is a rash. Why is this and what good does it do?

Is there any scientific reason why a key suspended from a length of string held over food always seems to indicate...

I tend to get awful headaches that fall under the migraine classification but I notice that they're weather...

How cold is it in outer space and how do you protect satellites from extreme cold?

Why do we assume that life on other planets would be a carbon-based, Homo erectus type of being that breathes oxygen?...

If as a human I share 98% of my genes with a chimpanzee and 60% of my genes with a banana, how come I only share 50% of...

Why do people go bald?

I'd like to hear about recessive genes and why they say that blondes and ginger people have more of these genes...

Why is it, that despite all this talk of evolution going on, humans have not evolved for the last 4000 years?