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I hadn't realised the flame was invisible. It's terrifying to me, after seeing ethanol fires on racecars.
by dmbche 3y ago
I hadn't realised the flame was invisible. It's terrifying to me, after seeing ethanol fires on racecars.
- _aavaa_ 3y agoIt is! NASA and firefighters had the broom test [0]. Walk with a broom in front of them if they thought there might be a hydrogen fire. If the broom suddenly burst into flames, they knew they had a problem. [0]: https://spinoff.nasa.gov/spinoff1997/ps1.html https://spinoff.nasa.gov/spinoff1997/ps1.html