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TIL Most alarms and sirens fall into the frequency range 1-3 kHz where the human hearing is the most sensitive, but this frequency range is also a black spot in our sound location abilities.

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9YjL7 TIL that the 18-year losing streak of Japanese baseball team Hanshin Tigers is tied to a popular curse that involved a Colonel Sanders statue. The statue, taken from a local KFC restaurant, was thrown into a canal by fans during their team's 1st and only championship run in the annual Japan Series.
BrGdd TIL that the concept for the show Quantum Leap (traveling back to different moments in history) came from a discarded premise for "Galactica 1980", which would have seen Apollo traveling back to different spots in Earth's history to fix changes made by Baltar.
DQmDV TIL of Atsumi Yoshikubo, a Japanese tourist who vanished while solo hiking in Canada's Yellowknife region. Despite her personal and professional achievements, Atsumi was a deeply troubled woman who apparently wandered off into the Canadian wilderness with no intention of being found. She was.
4XZk6 TIL that modern scientific research is seen by scientists and historians as "Big Science", with scientific progress since WWII increasingly relying on large-scale projects with big budgets, big staff, big machines, and big laboratories, usually funded by national governments or groups of governments
gMvmL TIL Hermann Göring was a morphine addict and required 5 shots per day to remain functional.