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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?

We’re bringing the heat with this summery quiz! Can you breeze through it?

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:

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.

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!

Double Helix Extra readers really got busy with brainteasers in 2024! Let’s do a count down of your top 5…

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.

Here are eight 8s, 8 8 8 8 8 8 8 8. Put some plus signs in there to make 1000.

2024 is winding to a close and 2025 is just around the corner. What better way to celebrate than with a science quiz! This quiz contains (almost) all of the science trivia questions featured in Double Helix Extra throughout 2024. There’s over 100 science questions to discover!

Our Microscope column answers the most intriguing science, tech, engineering and maths queries you can throw at us. So, why do voices sound so different on voice recordings?