Answers to Science Questions

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

If you take a two-litre plastic soda bottle and blow across the lid, you get a very low note. If you squeeze the bottle...

Could sound waves be heard on Mars?

When I play my flute, sometimes it gets a really screechy noise. What is it? It only happens when I play medium E...

Is white noise something to do with gravity or the big bang?

Why do instruments from different countries not go well together?

What is ultrasound? Is it actually sound?

Do TV and radio signals travel vertically, and if they do, do they disappear or travel off into space forever? If so,...

I was listening to my radio one night and I noticed that when I turned on my desk light there was a little blip of...

As far as I know, mammals do not use the colours blue or green, but most other animals and plants do. Is there a reason...

Have we got a time bomb in the population with mad cow disease?

We know that we're living on a nuclear furnace and heat's being made all the time in the core. Is there no...

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

I've been blind for forty years and when I dream, I can still see. I can see things I haven't seen like my...

People say that dogs are colour-blind. Is that a fact?

Can you please repeat how many tonnes of blood the heart pumps in twenty four hours.

Why is it that when I pull out my nose hair I get a really painful teary response?

Why are some planets surrounded by rings and not encased in a sphere of debris? Shouldn't gravitational pull act...

How does a lie detector work?

What is global dimming?

Is there any life at the bottom of deep ocean trenches?

Why do bubbles of gas form on the sides of the bath or glass while or after you have run the water?

Are there any immediate effects of sun spots on the weather, such as when solar bursts occur? What about long term...

You can predict the weather months in advance, but sometimes the weather forecasters don't even get it right next...