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Engineering posts

An annoying thing! Activity

by David, 20 September 2018 | 0 comments

A wire and rubber band contraption that is being wound up.

Do you like to prank your friends and family? Give this little contraption a go. It’s the perfect thing to make someone jump, without causing any harm.

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Shrinking plastic Activity

by David, 14 June 2018 | 2 comments

Image of a tiny giraffe held between someones fingers.

Have you ever wanted to draw really small pictures? Here’s a trick – you can just draw normal sized ones, and then use some special plastic to shrink them!

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Young engineer cleans windows and saves lives News

by David, 24 May 2018 | 0 comments

Photo of a young man with a screw driver, adjusting a machine.

If you hate cleaning windows, then do we have the invention for you! Sydney high school student Oliver Nicholls has developed a robotic window cleaner that has impressed the world. In fact, he just took out the top award at the Intel International Science and Engineering Fair (ISEF) in Pittsburgh in the United States!

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String Tower Activity

by David, 5 April 2018 | 0 comments

A piece of string, knotted at regular intervals, being held srtaight by three plastic strips which attach to the knots in the string.

How do you make string stand on its end? To find out, read on…

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Head bones and cycads – a quick quiz Quiz

by David, 28 March 2018 | 2 comments

Black lightning bolt in purple circle

How well do you know your own head? This edition of the quick quiz travels from Australia all the way out into space!

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A clock that will still tick in 10 millennia News

by David, 15 March 2018 | 3 comments

Close up image of the stainless steel gears of a clock.

Time keeping machines aren’t always built to last, but some do manage to stand the test of time. The Cronulla Clock Tower houses a clock that’s almost 250 years old, for example; the clock in England’s Salisbury Cathedral is still ticking 630 years after it was built.

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On Earth and Mars, time and travel – a quick quiz Quiz

by David, 14 March 2018 | 0 comments

Black lightning bolt in purple circle

Put your thinking caps on, it’s time to test your skills in chemistry, time, space, tech and biology!

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Double Helix Extra: your new email update! Update

by Jasmine, 28 February 2018 | 0 comments

10 year old holding tablet and atomic model.

Double Helix magazine is excited to announce that we’re merging our newsletters Science by Email and Maths by Email, and adding a splash of technology and engineering news. Keep an eye out for our new look email, called Double Helix Extra!

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Liquefaction Activity

by Pat, 11 January 2013 | 0 comments

Brick standing on its end in a container of sand.

Although sand is a solid, did you know it can behave like a liquid? Find out how by trying this activity.

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