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TIL of Sonoluminescense: When an underwater bubble is collapsed by sound waves, it creates light.

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8a5bb TIL Ikea's friendly "touch and try" showrooms have worked too well in China. Customers napped on sofas and beds and senior groups have taken over the food court without ordering anything. The Ikea stores in China tried a "no-napping policy" but people ignored it and still napped in the store.
rRdVe TIL that Dolly the Sheep was named after Dolly Parton. Dolly was cloned from mammary gland cells and Doctor Ian Wilmut could not think of a more impressive pair of glands than Dolly Parton's.
9wVRm TIL Big Bird was nearly a passenger on the doomed Challenger
rNYPe TIL wireless chargers make noise. When your phone is charging, an electromagnetic field is formed between the two, the coils inside the charger vibrate, creating electromagnetic waves. Those travel through objects and air to reach your ears within a certain distance.
6KwZ TIL of the aphorism Hanlon’s Razor: “Never attribute to malice that which is adequately explained by carelessness”.