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Capsaicin is what makes chilli peppers taste hot. (Shutterstock)

Why some like it hot: The science of spiciness

Human attraction to spicy food makes us an anomaly amongst mammals. Chilli is one of the most popular spices in our cuisines, but how the affinity for chilli appeared is a mystery.
‘I am C-3PO, human-cyborg relations. And this is my counterpart R2-D2.’ Gordon Tarpley

How long until we can build R2-D2 and C-3PO?

No Star Wars movie would be complete without the Universe’s two favourite droids. But now the race is on to turn them into fact.

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