Why do things burn?
Mar22

Why do things burn?

Burning, technically known as combustion, is a chemical reaction where a substance combines with oxygen and releases energy in the form of heat and light, which we see as flames. The substance starts off in a higher energy state, and by combining with oxygen ends up in a lower energy state.

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How do birds know when to migrate?
Mar04

How do birds know when to migrate?

In the springtime we see migratory birds returning to us whilst in the Autumn we bid them farewell as they head for warmer southern climes. But how do they know when to leave our shores ? – and why do they bother to return again ?

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Who ‘discovered’ the Atom ?
Feb23

Who ‘discovered’ the Atom ?

The simplest of experiences can hatch eureka moments. Legend has it that despite all his inherited wealth and global travels, the ancient Greek philosopher Democritus hit upon one of the most fundamental of ideas in physics while sitting in the comfort of his own home.

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What Causes the Pull of Gravity ?
Jan01

What Causes the Pull of Gravity ?

One of the most common and baffling science questions is “how does gravity work?”. If you too find yourself confused then rest assured you’re in good company … even Sir Isaac Newton admitted he was baffled by gravity. In this article we look at Einsteins solution to this conundrum.

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What is smashed in an Atom-Smasher (or particle accelerator) ?
Nov20

What is smashed in an Atom-Smasher (or particle accelerator) ?

The popular image of an atom-smasher – or particle accelerator – is of a device that somehow smashes atoms together with such high energy that they break apart and we can see what’s inside them – but is this true ? What goes on in these mysterious machines ?

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Why Do Leaves Turn Different Colours?
Oct30

Why Do Leaves Turn Different Colours?

The Autumn display of colours when trees begin to lose their leaves is a pretty spectacular thing. But why and how does it occur?

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Why do tides ebb and flow?
Oct27

Why do tides ebb and flow?

In a nutshell … tides are caused by the gravitational attraction between the moon and the Earth. In this article we look at how.

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Dropping in on the Big Bang
Sep25

Dropping in on the Big Bang

In the days of analogue TV you turned into a channel through various UHF frequencies. If you stopped tuning before you found a channel, you’d see a screen full of ‘snow’ – white dots . Some of that ‘snow’ is a sign of the Big Bang , although nobody was aware of its significance until the 1960s.

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What is the Gaia hypothesis?
Aug25

What is the Gaia hypothesis?

You may have heard of the name ‘Gaia’ as the personification of the Earth, or mother Earth. But in this article we look at a serious hypothesis that relates to mother Earth as if she ‘acts’ as part of a global system.

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The Clock inside the Rock – How do they date ancient rock ?
Aug14

The Clock inside the Rock – How do they date ancient rock ?

Geologist often trot out some incredible facts without a second thought – “This rock is 4.4 billion years old…” said geologist Simon Wilde in 2001 as he introduced the oldest known piece of the Earth, but how did he know?

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Shock Scientific Discovery – “Men & Women are Different”
Aug11

Shock Scientific Discovery – “Men & Women are Different”

Sometimes science has a strange way of proving what every body else has known all along, so here it is : Apparently “Men and Women are different”. Not only that but their brains are wired differently!

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How do Sunflowers and other plants track and always face the Sun?
Jul24

How do Sunflowers and other plants track and always face the Sun?

Sunflowers are among several plant species – especially desert plants – that have the ability to either grow or move in response to stimuli from sunlight to maximise the amount of direct solar radiation received for photosynthesis and growth. Here’s how they do it.

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Slugs (and vampires) watch out! – Eco friendly ways to kill them
Jul21

Slugs (and vampires) watch out! – Eco friendly ways to kill them

Slugs (and vampires) watch out! – Researchers at Newcastle University have found eco friendly ways to kill them.

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How To Talk To Fish
Jul17

How To Talk To Fish

If you have the opportunity to speak with any fish, I suggest you don’t choose herring. Herring communicate by shooting a burst of bubbles out of their anus. In this article we look at Fish Communications.

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How are fossils formed?
May12

How are fossils formed?

When animals, plants and other organisms die, they typically decay completely. But sometimes, when the conditions are just right, they’re preserved as fossils. In this article we take a look at how that process occurs.

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