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
National_Rutabaga_67 t1_iu4rxve wrote on October 28, 2022 at 3:27 PM Also called nightingale floors. Pretty cool concept tbh. Permalink 1
Viewing a single comment thread. View all comments