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​The Strength of Dental Floss - March 2020

​One time we were out on vacation and the screw in my husband’s eye glasses popped out. We were in the car and he felt helpless because his glasses wouldn't stay in place. I took his glasses and some dental floss and put the floss through where the screw used to be. I tied it tightly and it worked really well. Later I found out that my dental floss is a lot better a thread than ordinary thread because it is a lot stronger.  Now I put a dab of nail polish on top of those eye glass screws to prevent them from just popping out, and my dental floss became my favourite thread. 
Contributed by Joy Po, Philippines