FACTS OF THE DAY

4th December 2017

45% of the world’s cargo ships are travelling empty.

qz.com

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New members of the British Royal Family have to undergo hostage simulation training.

qz.com

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The world’s smallest fidget spinner can fit within the diameter of a human hair.

zmescience.com

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German researchers have developed a better kind of cement based on the structure of the spines of sea urchins.

newatlas.com

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By examining the DNA of any rat in Manhattan, researchers can tell whether it comes from uptown or downtown, or even from West or East Greenwich Village.

theatlantic.com

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Debate is raging as to whether cocaine is suitable for vegans.

vice.com