Solid State

28 January 2007

Why does 27 degree air feel hot but water of the same temperature feels cold?

14 January 2007

Is it dangerous to live 500 metres away from a mobile phone mast?

19 November 2006

Sometimes when I put my beer (330mL glass bottle) in the deep freeze to rapidly chill it, I can take it out and it...

12 November 2006

Why is it that bubbles are always round?

10 September 2006

Tapping the top of an open beer bottle produces a beer volcano - why?

25 June 2006

My children can make the screw tops of their plastic soda bottles 'talk'. You wet them and place them upside...

25 June 2006

What's the highest possible temperature that you can achieve?

04 June 2006

Please can you calculate how much extra fuel will be burned by a motorist during the current World Cup campaign as a...

04 June 2006

I've been following the progress of solar panels and hear that they're only about 16% efficient. What's...

09 April 2006

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

12 February 2006

Why is it that when you put something metal in the microwave, you get a firework display, and yet the inside of the...

05 February 2006

If you spill some water on the kitchen floor, it's obviously very slippery. Yet when you want to turn the pages...

27 November 2005

If our weight is the difference between gravity and the centrifugal force of the Earth's rotation, why are we not...

27 November 2005

What's gravity made of?

06 November 2005

How's a rainbow made in the sky?

16 October 2005

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

16 October 2005

I'm in contention with someone at work, who is saying something that I don't believe is true. He maintains...

16 October 2005

When you let the water out of the bath, why does the water spiral down the plug hole?

02 October 2005

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