Category: Science
Science
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How is the Non-Stick Coating Stuck on to Kitchenware?
How do you get something that's main purpose is to not to stick, stick to something ? - Teflon and how to make it 'sticky'
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If we can’t see a Black Hole, How do we know they exist?
A black hole is perhaps one of the strangest objects in our universe. It is in fact the remains of a massive dead star that has run out of fuel and collapsed. But how do we know it’s there ?
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Why Are Men So Hairy ?
Hairy heads, hairy legs, and hairy armpits-the human body is covered in the stuff! Although many of us attempt to get rid of it, it is still obvious that men have more body hair than women. So what is the point of body hair, and why are men so hairy?
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What is a Black Hole?
A black hole is perhaps one of the strangest objects in our universe. It is in fact the remains of a massive dead star that has run out of fuel and collapsed.
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How Are the Times of Sunrise & Sunset determined ?
Given that astronomy is the oldest science and that sunrise and sunset are very basic celestial phenomena, you might have thought this would have been sorted out centuries ago. Not a bit of it!
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Why Can’t We Invent a Time Machine?
Why Can’t We Invent a Time Machine? – Well, theoretically it IS possible to travel in time – but only forward, not backward in time.
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How do Ants Communicate ?
When ants discover a food source its not long after that their fellow colony members descend on that location to make the most of any tasty morsel that’s been discovered. Clearly there’s some form of communication going on between colony members – but how ?
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What Makes the Earth Rotate?
What Makes the Earth Rotate? … In a Nutshell : Earth rotates simply because it has not yet stopped moving!
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Why are some solids like glass and perspex transparent?
Anything that is transparent allows light rays to get through the thicket of atoms packed within it more or less unscathed. The reason light can make it through substances like glass is that their molecules only mop up light of wavelengths shorter than those of visible light.
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How Do we See Colour?
The human eye and brain work together to perceive colour. Light is sensed on the retina at the back of the eye. The centre of the retina contains about 6-7 million cells called cones. Different ones are sensitive to red, green, and blue light.
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When Left Can be Right and Right Can be Wrong – Left & Right Handed Molecules
Our Universe is a remarkable place and not a little odd in some of the ways it works. For instance have you ever heard of left and right handed molecules ? Or been told that, chemically speaking, an orange is a ‘left-handed’ lemon!
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Why Do We Cry?
Why Do We Cry? In a Nutshell : Crying is beneficial to health and mental well-being. A good cry is great for body and mind.
We also look in this article at the very complex plumbing system and tear film layers that work hard to protect your eyes.
How Much is the Earth Affected by the Other Planets?
While the planets may not affect us in ways astrologers would have us believe, events on Earth are undoubtedly influenced by the gravitational pull of our celestial neighbours and the results are rather more important than liaisons with tall dark strangers. But what exactly are the effects?
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Why do we get goose bumps when we are cold?
Goose bumps are small bumps on a person’s skin at the base of body hairs. Tiny muscles at the base of each hair contract and pull the hair erect. The most common type of goose bumps is a response to cold.
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Why does our hair go grey or white when we get old?
Some people get grey (or white) hairs in their twenties, and others still have dark hair well into their seventies and eighties. The process of greying can occur gradually over many years as individual hair follicles stop producing colour, or it can happen within a matter of months or a few years. How long depends a lot on genetics.
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Can People’s Past Injuries Predict When a Storm is Coming?
There are many people who often claim to have an arthritic joint with the power to tell the future, at least meteorologically. The idea that certain painful health conditions are affected by the weather is an ancient claim, dating back to at least Hippocrates in the 4th century B.C and no even doubt earlier. But can this phenomenon be explained?
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Wacky-pedia : Weird Questions, that you never even asked, Answered – What does Space Smell Like?
In this article we present you with some wacky facts as well as answering some of the more weird questions – questions that you never even knew you should’ve asked!
Weird Questions, that you never even asked, Answered – What does Space Smell Like?
