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Make a watermark Activity

by David, 4 October 2018 | 0 comments

If you want to write a secret message, we’ve got a simple technique for you to try. Time to work on your watermark!

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Invisible glass Activity

by David, 28 June 2018 | 0 comments

Glass of water with a ock floating in it.

Find out more about invisibility by hiding a glass jar in plain sight. Then, use the jar to create a clever illusion, making a rock appear to float mysteriously!

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The Year of Light Activity

by David, 2 March 2015 | 0 comments

2015 is the The International Year of Light and Light-based Technologies. To celebrate, we’re sharing some light-based articles and activities:

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Blue is a Nobel colour

by , 17 October 2014 | 0 comments

What will make our future brighter? For thousands of years our lives have been lit by the Sun, by stars, by fire. Electricity brought new types of lights, ones we can summon at the flick of a switch. Not all lights were created equal. Some lights use more energy than others to create a glow….

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How bright is the Sun? Activity

by David, 7 October 2014 | 0 comments

You will need Lamp and extension cord Paper Vegetable oil Rag or paper towel Ruler or tape measure Pen and paper to do some calculations on What to do Pour a small amount of vegetable oil onto a sheet of paper, and then wipe it off. You will end up with a semi-transparent oil stain…

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Light’s whispers

by , 13 June 2014 | 0 comments

A whispering gallery of light has made the world’s most sensitive thermometer yet. This thermometer sets a new record in precision. Made by an Australian team of researchers, it is three times better than the previous record holder, and can measure temperature differences of just 30 billionths of a degree. This is the smallest change…

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Jelly lens for your smartphone Activity

by , 2 May 2014 | 0 comments

Caution: This activity uses boiling water, children must be supervised by an adult. You will need Gelatine powder (plain, no flavouring) Boiling water Flat plastic lids A glass or container Teaspoon Small bowl Measuring spoons What to do Measure two teaspoons of boiling water into the small bowl and sprinkle a quarter of a teaspoon…

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Moth mimic

by , 11 April 2014 | 0 comments

The way a moth’s eyes have adapted to darkness may help us stop glare from the Sun. Despite their tendency to circle light bulbs, moths have eyes that are designed for darkness. Each eye has a bumpy pattern that stops light reflecting off the surface, possibly helping the moth see in the dark and hide…

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Elec-TREE-city News

by Sarah, 21 March 2014 | 0 comments

Pierre Vivant's sculpture, Traffic Light Tree in the Docklands, London

Written by Neha Karl Plants are a gift of nature. They provide food to eat, release oxygen into the air we breathe, and make our world a whole lot greener. And soon, they could be a supercharged source of energy! Just as plants grow and develop, so does technology.

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Aurora origins News

by Pat, 8 November 2013 | 0 comments

Aurora over a winter landscape.

On a dark night, far from the Equator, you might be lucky enough to spot an aurora: a shimmering, colourful glow in the sky. This natural light show has captivated people for thousands of years. While it is mostly associated with cold, dark nights near the poles, auroras have a much brighter, warmer origin: the…

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