Tag: chemistry


Why Does Ice Float?

Water is one of the strangest chemicals in the universe, and many of its strangest features turn out to be essential for life as we know it, particularly the almost unique property of water related to freezing. So why does it float when it becomes a solid?

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What is Love ? (Scientifically Speaking)

What is Love ? : A very deep and involved question. However in this article we will restrict ourself to the scientific point of view. What is going on in our bodies, and brains when we fall in love or see the object of our inner most desires.

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Sniffing out Trouble – Analysing the composition of almost any surface

Scientists in Zurich, Switzerland have up with a sensitive new way to analyse the composition of almost any surface, including human skin by blowing a stream of nitrogen across the surface under analysis and collect the gas together with any debris that it dislodges. The material is then fed into a mass spectrometer that can pick apart the chemical composition of anything present on the surface.

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How does soap work?

A bar of soap is a chemical miracle – a little scented block that unleashes molecular forces when dunked in water. In this article we look how this little miracle actually works.

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Elemental Questions : What is Fire Made of ?

Fire – one of the most primitive and yet intriguing of the ‘fundamental elements in our world. Indeed one of the things that differentiates mankind from the rest of the animal kingdom is his ability to make and control fire. but : What is fire made of ? What is its atomic structure? What causes things to burst into flame in the first place and why can’t all materials be made to produce flame ?

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How is the Caloric Value of Food Measured?

The Caloric value of food appears everywhere today. It’s almost as if there’s some malevolent conspiracy to make us feel bad about that chocolate bar or bag of crisps we like to snack on. But how do they estimate the calorific values and is it very accurate ?

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How do plants feed ?

How do plants feed? The answers quite ingenious … most plants create meals for themselves in the form of sugar. This process is called photosynthesis (‘photo’ meaning light and ‘synthesis’ meaning to make) in other words making food with light !

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Why is the sea salty?

A litre of seawater contains about 7 teaspoons of salt – that’s about 35g. But how did it get so salty ?

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We are Stardust …

We are Stardust … the chemical elements that make up our bodies, originated, with one exception, in the turbulent body of a star

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Mr Global Disaster

What would you say if much of the causes of global warming and pollution that the world is currently struggling with could be traced back to one man ?

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