Ricki Tarr on Nostr: We are pretty lucky that most fires burn within our visible light spectrum, but there ...

We are pretty lucky that most fires burn within our visible light spectrum, but there was this one time at NASA. Apparently, hydrogen is very pale when it burns and can't be seen by most people, not only that, but it burns very cleanly and with little ambient heat. The scientists had to walk around with brooms in front of them, and if the broom caught fire they'd know where the fire was, they called this The Broom Method.

https://shop.minimuseum.com/blogs/cool-things/the-broom-method?srsltid=AfmBOordQRxmUUxMvh3jV2XN7K7vUapiG87WCIQ5a_35TTj99CH5v0gy