By Ariel Marcy, 29 January 2025
Did you know that wombat poo is shaped like cubes? Celebrate the fascinating reasons for how and why while making some delicious mini lamingtons.
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By Evrim Yazgin, 22 January 2025
The biggest birds today are the ostrich and Australia’s emu. Ostriches can be 2.7m tall and weigh 140kg! In the past, some birds were even bigger. Some of them, called moa, lived in New Zealand. One species of moa could grow to more than 3m tall and weigh a whopping 250kg! Moa went extinct about 600 years ago, soon after humans first made it to New Zealand.
By Ariel Marcy, 15 January 2025
Rita is making lamingtons for her birthday party and cuts them precisely into 5-centimetre cubes. While playing around with an antique balance scale, she discovers that one lamington is equal to 50 grams plus half a lamington. At her party, she eats one and a half lamingtons. How much did Rita’s dessert weigh?
By Ariel Marcy, 8 January 2025
We’re bringing the heat with this summery quiz! Can you breeze through it?
By Ariel Marcy, 1 January 2025
Hey, did you hear the news? We published over 20 articles covering the latest news in science, technology, engineering and maths in 2024! Here are the seven most surprising headlines:
By Ariel Marcy, 23 December 2024
It’s summer! To a scientist, that means the Southern Hemisphere is tilted towards the Sun. And to young Australians, it means lots of school holidays! To celebrate, we’ve hand-picked 20 hands-on STEM activities that go well with lots of sunshine and quality time with family and friends.
By Michelle Lucas, 19 December 2024
Maybe you’ve heard about quantum in science class or maybe in a sci-fi book! No matter where you’ve come across it, you probably know it’s a bit strange, maybe confusing but also possibly an important part of the future. And all these things are true!
By Ariel Marcy, 18 December 2024
Double Helix Extra readers really got busy with brainteasers in 2024! Let’s do a count down of your top 5…
By Nathan K. Long, 13 December 2024
Nathan K. Long is a Participant in the 2024 Quantum Explained Challenge put on by the Australian Institute of Physics, Cosmos and Double Helix Extra. This entry impressed our panel of expert judges for making a quantum concept clear to a middle school audience in less than 250 words.
By David Shaw, 10 December 2024
Here are eight 8s, 8 8 8 8 8 8 8 8. Put some plus signs in there to make 1000.
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