Enigma Number 1757
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Today on 91av
All the latest on newscientist.com: the end of colour blindness, black hole blitzars, killer quantum apps, hipster toad, drone strikes on the farm, and more
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Earth
Natural fracking feeds an eternal flame
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Today on 91av
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Physics
Giant superconducting ring takes a road trip
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Earth
In this echo-free room you can hear your heartbeat
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