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TIL 43% of British pilots admitted to falling asleep during flights, 33% of them reported waking up to find that their co-pilots had fallen asleep as well, according to a survey carried between 2010 & 2012 [PDF]

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nWXxo TIL the BIPM doesn't use a physical rod that's exactly 1 metre similar to the physical "Kilogram" specimen, instead use concise measurement of light & time defined in 1984 by the CGPM as the distance light travels, in a vacuum, in 1/299,792,458 secs with time measured by a cesium-133 atomic clock.
N7gNb TIL of the “asshole” experiments: participants were blocked from walking down a narrow hallway by a researcher who called them an “asshole”. Southern men were far more likely to respond aggressively to the insult than Northern men who shrugged it off.
eNVL TIL that morning show host Karl Stefanovic wore the same suit on air every day for year to highlight that women are judged for their appearance on TV in a way that men aren’t. In that time, he did not receive a single complaint about his suit. “No one has noticed; no one gives a shit,”
QNdEM TIL that flowers are actually the reproductive organs of certain plants (called angiosperms)
rNNnM TIL about Thiomargarita magnifica, a bacteria that can grow up to 2 cm