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Physical sciences posts

Air cannon Activity

by David, 22 August 2019 | 0 comments

Cup with plastic wrap and ticket targets in the background.

Want to reach out and touch something with a puff of air? This tiny air cannon shoots vortexes of air that can be felt from metres away!

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Sugar and sunglasses Activity

by David, 8 August 2019 | 0 comments

Jar with polarised light effect.

Wearing sunglasses while using a computer might seem like a bad idea. But if you use the right glasses, it can make a great experiment!

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Drop the needle! Activity

by David, 11 July 2019 | 0 comments

Flame heating a needle held in place by a magnet.

Think you understand magnets? In this hands-on activity, use a magnet to make a needle float and then fall.

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Stirring an impossible liquid News

by David, 4 July 2019 | 0 comments

Swirling brownish image.

Imagine a swirl of milk in a cup of tea, or a drop of food colouring in a glass of water. The way liquids move and flow is intricate and almost impossibly complex. But that doesn’t stop scientists from trying to understand this movement.

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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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Upside down bottle Activity

by David, 21 February 2019 | 2 comments

Plastic bottle half filled with water with a screen tied over the opening and the whole thing inverted upside down.

Here’s a classic activity with a showy twist. Surprise your friends by inverting a water bottle without spilling its contents!

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Leaning fire Activity

by David, 1 November 2018 | 2 comments

Image of a tealight in a small glass jar.

Water in a cup sloshes around if you don’t move it carefully. What about fire? Let’s find out!

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Gravity well Activity

by David, 11 October 2018 | 1 comments

A hand placing a larger pink ball onto a piece of blue fabric which already has a small black ball on it.

Have you ever wanted to experiment with the orbits of moons and planets? Time to make a gravity simulator!

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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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Fact vs fiction in Ant-Man and The Wasp News

by Jasmine, 27 September 2018 | 1 comments

It’s exciting to get swept up in the fictional world of a good movie, but do you ever wonder if the story line is really possible? Sit back and pass the popcorn as we take a closer look at the science and technology behind Ant-Man and The Wasp.

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