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Posts by David

Measuring malaria on your breath News

by David, 27 February 2017 | 1 comments

A scientist standing near a computer, analysing malaria.

It’s really annoying to get bitten by a mosquito. Your skin often swells, and the bite can itch for days. But in many places in the world, that small bite isn’t just annoying. It can cause a life-threatening disease: malaria.

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A crowd of dice Activity

by David, 21 February 2017 | 0 comments

some die with ticks and crosses drawn on them.

Time to test your intuition. What’s better: one expert, or the wisdom of the crowds? Let’s let the dice decide.

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What’s wrong with our tomatoes? News

by David, 7 February 2017 | 0 comments

A bunch of rite tomatoes on a bush.

They’re bright red, a bit crunchy, and they don’t really taste like much. The standard tomatoes you can buy in a supermarket are a bit boring to eat. But if you’ve ever grown tomatoes yourself, you’ll know how sweet and full of flavour they can be. So what’s happened to the humble tomato?

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Solve the L-puzzle Activity

by David, 31 January 2017 | 0 comments

Here are two tricky puzzles, which look strangely similar. Did we somehow get a puzzle inside your puzzle? You will need Scissors Copy of the printouts, which you can download here (two pages) What to do

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When crystals align News

by David, 20 January 2017 | 0 comments

A microscope image of several tiny cubic crystals.

Written by Rachael Vorwerk Inside a small sample of powder, there hides a gigantic secret. In just a teaspoon of the stuff you’ll find the entire surface area of a football field. It sounds like something from Back to the Future, but for CSIRO scientists it’s the norm.

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Pyramid solitaire Game

by David, 16 January 2017 | 0 comments

MAny playing cards arranged in a triangle.

Many people know how to play solitaire or patience, but there are actually lots of different one-player card games. This version of patience has a bit of addition, and also some tricky strategic thinking.

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Who knew? Sea birds fight climate change! Activity

by David, 9 January 2017 | 0 comments

You might think we know everything there is to know about climate change. We know that greenhouse gases, such as carbon dioxide and methane, are trapping heat. And we know that average temperatures are climbing worldwide. But there’s still lots for us to learn, and new discoveries are being made all the time.

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Super strong pencil Activity

by David, 4 January 2017 | 0 comments

Someone is wrapping a yellow string around a pencil.

In this trick, you’ll wrap a shoelace around a pencil and a strip of cardboard. The string seems to pass straight through both, tearing the cardboard, but leaving the pencil untouched!

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New dish helps spaceships phone home News

by David, 22 December 2016 | 0 comments

A large radio telescope dish.

Voyager, Pathfinder, Cassini. Humanity has sent out dozens of plucky little space probes to explore our solar system. But when these robots need to call home, who’s listening in?

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A mathematical bauble Activity

by David, 19 December 2016 | 0 comments

A round ball made of colured paper.

Feeling festive? This cool mathematical bauble is fun to make, and looks great too!

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