Recent Q&A...
It’s impossible to say when, if ever, we’re going to kill off the qwerty keyboard. But other technologies are typing out its death warrant. Many of us are already using touch-and-...
The answer may be simple. There are good reasons why so many animals have two eyes, even though some spiders and insects have more. Two eyes on opposite sides of the head, as in many...
There is but it doesn’t reveal supernatural powers. Dowsing uses tools that amplify small movements. For example, the traditional ‘divining rod’ is a forked twig held in tension...
There is but it doesn’t reveal supernatural powers. Dowsing uses tools that amplify small movements. For example, the traditional ‘divining rod’ is a forked twig held in tension...
It’s a technique called chroma keying, where someone is filmed standing in front of a green screen. Any green colours are digitally filtered out and replaced by the desired video. If the...
Well, despite what you might think, we won’t all be flung into space. It would mean the loss of the 24-hour cycle of day and night. The end of the daily grind would have another spectacular...
When you’re truly shocked, you don’t cover your mouth; you just scream. Covering your mouth seems to be a secondary reaction, when you’re trying to moderate your initial response...
In humans there may be no point at all. Goose pimples (or goose bumps, or goose flesh) are caused by the contraction of tiny muscles called arrectores pilorum at the base of each hair. In much...
No. If you mean opening the mouth very wide and breathing deeply then some fish, birds and even snakes yawn. Baboons, guinea pigs and Siamese fighting fish yawn to show aggression. Some penguins...
Light is a form of electromagnetic (EM) radiation, and theory shows that the mass of photons f light is related to the range of this radiation. If, as most scientists believe, EM radiation has an...
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