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electricity posts

Heat avoider Activity

by David, 23 June 2021 | 0 comments

Foil and paper strip curling as it is held over a candle flame.

Make a curious device that doesn’t like being put near a candle flame. When it gets hot, it curls away!

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Make a reed switch Activity

by Mike, 10 June 2021 | 0 comments

By Mike McRae and David Shaw Attracted to doing some hands-on science? Why not use a magnet to create a ‘reed switch’?

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Grab bag of science – a quick quiz Quiz

by David, 7 April 2021 | 0 comments

Black lightning bolt in purple circle

There’s no rhyme or reason to this quiz. It’s just some of the strangest and hardest science questions we could find. Can you beat the odds and get 5/5?

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Confuse a compass with electricity Activity

by David, 9 July 2020 | 0 comments

Image of a compass on a piece of wire.

By Beth Askham and David Shaw Did you know that electricity and magnetism are closely related phenomena? In this activity, you’ll create a magnetic field using electricity and find that this can cause chaos for a compass!

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Microscope: Birds on a wire News

by Jasmine, 6 June 2019 | 6 comments

Pink and grey galahs sitting on powerlines (wires)

Double Helix magazine is looking for your questions! Our Microscope column answers the most intriguing science, tech, engineering and maths queries you can throw at us.

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Hot top hat! News

by David, 18 September 2016 | 0 comments

A cool circle with a very hot centre.

Perched high atop a giant shiny dish, sits a strange top hat. This hat is filled with high pressure steam, and it’s the secret to efficient solar power that can work even after the Sun sets. Welcome to the world of concentrated thermal energy.

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Blue is a Nobel colour News

by Andrew Wright, 17 October 2014 | 0 comments

Blue LEDs shine light onto a wall

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.

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Microscope: Higgs boson News

by Mike, 26 September 2013 | 0 comments

A table of the standard model in particle physics.

Welcome to Double Helix magazine’s Q&A section – Microscope. We take a close look at small questions full of big ideas. Q: I would like to know how a Higgs boson gives other particles their mass?

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Make a magnetic rail gun Activity

by Carol Saab, 1 August 2013 | 1 comments

Hand holding a ring launcher that looks like a rod with a handle

Electricity, magnets, momentum and cool slow-mo footage. It’s all in our video: take a look!

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