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Physical sciences posts

Microscope: Birds on a wire Article

by Jasmine, 6 June 2019 | 5 comments

Pink and grey galahs sitting on powerlines (wires)

Double Helix magazine is looking for your questions! Our Microscope column answers the most intruiging 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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Leaving patterns Activity

by David, 31 January 2019 | 0 comments

a cup of water with plastic over the top and a coin balancing on that.

Written by Elvina Lee Here’s a cool activity that’s perfect for a hot summer’s day! Create a curious pattern with water.

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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! Safety: This activity involves fire, so ask an adult to help. Don’t do this activity during a fire ban. First aid: If you burn yourself, blow out the candle and run the burn under cold water for…

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Gravity well Activity

by David, 11 October 2018 | 0 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 | 0 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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Finding the coldest place on Earth News

by David, 5 July 2018 | 0 comments

Image of buildings in a flat icy landscape.

It’s the middle of winter in our part of the world. And if you live in southern parts of Australia, you might think it’s a bit chilly. But there are places on Earth that are much colder. New research has found places in Antarctica colder than we have ever measured before!

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Faintest touch, lightest force News

by David, 10 May 2018 | 0 comments

Image of the force detector, a metal box with electrodes either end, a lens. Red and orange illustrate the movement of the atom when force is applied.

What’s the faintest touch you can feel? A feather on the back of your hand, a whispered breath in your ear? Scientists from CSIRO and Griffith University just built a device that feels much lighter touches – in fact, it’s the most sensitive force detector on the planet!

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Balloon bus Activity

by David, 22 March 2018 | 3 comments

Photo of a man sitting on a bus holding a red balloon on a string.

When you’re on a bus, corners can push you sideways. But what does it do to a balloon? Grab a balloon and get on board to learn a thing or two about inertia.

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