Q. How does glue work A. If you look at most surfaces through a microscope, you will find that they are not smooth. What an adhesive does is work to fill in the gaps and build a bridge between two

What is cool Like the man said when asked for a definition of jazz -- if you have to ask, you'll never know. Happily, today there's an alternative. You can ask the Superbrands organisation and their

The average man will spend over 3,000 hours of his life shaving. A couple of minutes spent reading this article should make those hours a little more bearable - and more effective. The average face

asks Pathfinder:A. It's estimated that most commercial planes are lightly struck by lightning at least once a year. Q. Why so frequently A. Bigger commercial planes can trigger lightning by simply

Asks Ursula:A. Yes, there has been quite a lot of research into this. Seasonal Affective Disorder (SAD) - or winter blues, in particular, has come in for a lot of attention because so many people in

asks jaysway:A. To find out where laughter comes from, scientists studied chimpanzees - they make a noise which is similar to laughter when they are tickled or playing. Because apes have this

asks Mayastar:A. Researchers who are looking at the data from the Pathfinder mission to Mars in 1997 believe that there may be chlorophyll in the soil close to the landing site. Q. How can they

asks Miss Don:A. Yes, it may be possible, according to a recent report in New Scientist. Scientists from Touro College in New York have been trying to find an alternative source of food for

asks modge:A. There may be a way. A new invention was reported in New Scientist recently. It's called the Silence Machine and may be the answer to the sound of a road drill or thumping bass from a

asks sander:A. The panicky feeling we get when we are tickled is a natural reaction which has evolved as a defence against creepy crawlies and bugs. Tickling makes us goose-pimply and sends us into a

asks ursula A. Cookies are designed to make it easier for you to get around on the web. Q. They're not put there to glean information about me and my computer then A. No. Put that down to paranoia.

asks jaysway: A. The block of ice which broke off from the Antarctic is 3,250 square kilometres - about the size of Wales - and is estimated to weigh about 500 million billion tonnes. It has broken up

asks Woolley:A. Good question. After all, it's not every day one of the largest asteroids seen by astronomers comes within 450,000km of Earth - that's just one and a half times the distance to the

asks Jayne b-t:A. It's true that the numerals used in Europe, America and much of the world are called Arabic numerals, but that's not where they come from originally. According to tradition, the

asks dekhay: A. Yes, spring is getting earlier. According to the records, this year had one of the warmest first couple of months since record began 300 years ago. Q. Hasn't it been rather parky A.

asks Modge:A. The blue-green colour you see on the yolks of hard-boiled is iron sulphide. It is caused by a reaction between iron in the egg yolk and the hydrogen sulphide in the white, which is why

asks Claudio:A. A cold is a viral disease that is very contagious. You catch one when it infects the soft lining (mucous membrane) of the nose, making it run. There are around 200 cold viruses in

asks Woolley: A. For the first time, Nasa experts have come up with a plan that could take mankind to the stars. Spill the beans...At the recent American Association for the Advancement of Science

asks MissDon:A. There are four vital ingredients for making good compost: organic waste (fruit and vegetable peelings, newspapers, prunings, leaves and grass); soil; water and air. Basically,

asks rtell:A. First you need to understand how rainbows are formed. Rainbows need strong sunlight and water droplets suspended in the air, which is why you see them on 'April showers' types of days,