Scientists have decoded the smell of Cleopatra's perfume | CNN

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Scientists have decoded the smell of Cleopatra's perfume | CNN
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Some historians and chemists are recreating the perfume that Cleopatra may have used based on recipes recorded in Egyptian texts and inscriptions on temple walls.

As a child in the 1980s, I visited the Jorvik Viking Centre in York, England, to learn about the Scandinavian seafarers. The museum stank — and the stench was deliberate. Visitors to the attraction were — and still are — treated to the unsavory odors of a Norse village: a cesspit, dead fish and woodsmoke. The trip has stuck in my mind, perhaps because the nose plays a unique role in shaping memories.

Recordings of a number of different plant species revealed that they emit a popping or clicking sound that is not detectable by the human ear. It sounds a bit like the pop of popcorn or bubble wrap, and the plants make more sounds when they are dry or their stems have been cut. There is no evidence that shows the noise produced by plants is intentional or a form of communication, but the sounds could convey useful information to other animals like insects, bats or moths.

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