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VBKp8 TIL the philosopher, David Hume, served as secretary to general James St Clair in a planned invasion of Canada, which is soon cancelled; then they invade France, where several comic events ensue, and the military career of Hume end ingloriously, without any significant military achievements.
Y7OyG TIL that the "dumb" in dumbbells originally meant "mute". A "dumb" bell was a contraption used to train church bell ringers in the fine art of bell ringing without annoying the entire neighborhood. Later, because of the similarities in shape, the name was applied to certain exercise equipment.
rRDL0 TIL that scientists made tiny, designer shades for a housefly that fit snugly onto his 2 mm wide head.