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If you’ve ever had a song stuck in your head you’ll know it’s annoying. But as Dr Karl Kruszelnicki explains, it might be an evolutionary way of keeping us alert to attack or stay focused during repetitive tasks.
We tend to think of computers as being a fairly recent invention. But the world’s oldest known computer is actually a few thousand years old. It’s called the Antikythera Mechanism
5G promises incredibly fast download speeds – but what about those cancer rumours?