Technology
How to program a device that plays with random numbers
With a little basic coding, Hannah Joshua shows you how to make a truly smart messaging device that can dispense advice whenever you shake it
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What鈥檚 better for the environment, using a hand dryer or paper towels?
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What happens to the energy of a moving car when it hits a wall?
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This week’s questions
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Technology
Expert maker Zoe Laughlin talks back-garden Olympics and Dolly Parton
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Life
Meet the Ghostbusters monster that could floor a tyrannosaur
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Feedback: Are new straw laws just grasping at straws?
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Humans
This Tank Man image from Tiananmen Square heralded a new digital age
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Earth
New prime minister Boris Johnson鈥檚 climate change record
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Environment
Plastic producers urged to take responsibility for “nurdle” pollution
Billions of plastic pellets called nurdles have washed up on UK beaches. Pollution researcher Alexandra McGoran says producers must do more to stop pollution
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Technology
How to make a propeller buggy with a motor, a bottle and some straws
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Feedback: And the gong goes to the zombie climate apocalypse
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Why do cars have speed limits 鈥� is it physics or just practicality?
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Why is toast so different from bread heated in a microwave?
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