{"id":56745,"date":"2025-12-04T04:46:11","date_gmt":"2025-12-03T19:46:11","guid":{"rendered":"https:\/\/phys-edu.net\/wp\/?p=56745"},"modified":"2025-12-04T04:46:11","modified_gmt":"2025-12-03T19:46:11","slug":"held-up-without-glue-the-magic-of-friction-from-just-two-toothbrushes","status":"publish","type":"post","link":"https:\/\/phys-edu.net\/wp\/?p=56745&lang=en","title":{"rendered":"Held Up Without Glue! The Magic of Friction from Just Two Toothbrushes"},"content":{"rendered":"

I’m Ken Kuwako, a Science Trainer. Every day is an experiment!<\/strong><\/span><\/p>\n

Can you imagine a toothbrush suddenly transforming into a heavy-lifting powerhouse? We’re going to show you an experiment where a simple tool, usually just for cleaning teeth, unleashes astonishing power through the magic of science. It\u2019s a perfect, everyday trick to experience the fun of physics!<\/p>\n

The Experiment: Toothbrush vs. Banana! Which Wins?<\/h3>\n

All you need are two toothbrushes with firm bristles. The procedure is incredibly simple, but the result is shocking.<\/p>\n

First, hang one toothbrush from a high spot using an S-hook or similar item.<\/p>\n

Next, take the second toothbrush and mesh its bristles tightly with the hanging brush’s bristles, gripping them firmly together.<\/p>\n

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While lightly pressing the meshed section with your fingers, attach a weight to the bottom brush.<\/p>\n

We decided to hang an entire bunch of bananas! That\u2019s quite a load, isn’t it? You’d assume it must fall, but when you release your fingers…<\/p>\n