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TIL Oenothera drummondii (beach evening primrose) flowers respond to the specific frequency of flying bee sounds by producing sweeter nectar within 3 minutes

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J1Rj8 TIL the first satellite navigation system, Transit, was operational in 1964, only 7 years after the Sputnik-1 launch
yVd4w TIL The Hindenburg, the largest aircraft ever built, was partially constructed out of material salvaged from R101, a British airship that had previously held the same distinction, after it was destroyed in a fatal crash in 1930
Gkm1 TIL that in Thailand there is a smile that specifically expresses “Yes, I know I owe you the money but I don’t have it right now”, and at least 12 others with specific meanings.
RnVQ TIL The children of the Moken people in Thailand and Burma are able to see clearly underwater due to their sea-based culture.
k9M7 TIL - the navy is now teaching sailors Celestial Navigation as a response to potential cyber attacks to ship navigation systems.