TIL about anti ninja floors in Japan. They were purposefully made to squeak as to alert people of intruders. science.howstuffworks.com Submitted by tpb01 t3_yf8hvz on October 28, 2022 at 12:32 AM in todayilearned 187 comments 5,566
dar512 t1_iu7ona6 wrote on October 29, 2022 at 4:44 AM Has no one read “Across the Nightingale Floor”? Permalink 1
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