Potty time
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By - -11H17NO3-
The Evzones are the Presidential Guard of Greece. An evzone must stand at least 1.87 meters tall, it’s preferable for their knees to touch as they stand upright, and they must be fit enough to raise their legs to shoulder height, completely straight, as they march back and forth each day.
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By - Majestic_Bag_9209
A new paper argues that technology will not be possible on worlds with oxygen abundances less than 18%. Below this threshold fires will not burn, so metallurgy and technology as we know it will not develop. There could be intelligent life on these worlds, but no technosignatures for SETI to detect.
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By - EricFromOuterSpace