Science History: Celsius didn’t invent the scale that bears his name.

Here’s a video from Veritasium that was quite a surprise to me. It turns out that what we know as the Celsius temperature scale we use today wasn’t invented by the man whose name it bears. At least, not entirely:

Despite having lived through the big push to learn the Metric system in the 70’s, like most Americans, I never really got my head wrapped around it. Thanks to Reagan the United States Metric Board (USMB) was disbanded in 1982 bringing an end to any official attempt to make the Metric system the U.S. standard. Outside of the popularity of the 2-liter pop bottle and the 9-millimeter bullet, the vast majority of measurements in the United States is still done using the United States customary system (USCS or USC) which is a mish-mash of different systems none of which are as elegant as the Metric system. There’s been a couple of half-hearted attempts to get adoption going again over the years, but they’ve been mostly voluntary efforts that no one wants to volunteer for. Sure, you’ll find it in use in various science-y professions, but the average American is largely clueless on whether they would need to wear a coat when it’s 32°C outside*.

*Hint: No, most definitely not.