Dr Karl


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Under the skin: Hand-rolled cigarettes are both less natural and more harmful than factory-made cigarettes (Source: winterling/iStockphoto)

Cigarettes: roll your own vs factory-made

GREAT MOMENTS IN SCIENCE: There’s no such thing as a ‘less harmful’ cigarette, even if you roll your own. In fact, rollies are deceptively deadly, says Dr Karl.

Alan Turing always ate an apple before going to bed, and would sometimes leave them half-eaten (Source: prill/iStockphoto)

Alan Turing and the apple

GREAT MOMENTS IN SCIENCE: Apple makes smartphones – the ultimate universal machine – but that’s where the connection to the ‘father of computing’ ends and the myths begin, says Dr Karl.

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