Sciencemadness Discussion Board

Pedometer-eating pig's poo starts farm fire

RedDwarf - 8-3-2020 at 06:13


https://www.bbc.co.uk/news/uk-england-york-north-yorkshire-5...

"Fire crews were called to a farm near Bramham, Leeds, at about 14:00 GMT on Saturday after copper from the pedometer's batteries apparently reacted with the pig's excrement and dry bedding."

I'm struggling to see what reaction copper might have initiated or catalysed in order to start the fire - can anyone enlighten me?

Morgan - 8-3-2020 at 06:39

Perhaps salts or urine shorted out the battery in the meter.

RedDwarf - 8-3-2020 at 10:15

Yes I could understand a short causing a fire, it was the idea of a) there being copper in the battery that b) "reacted" with the excrement and bedding. There could be copper in a Li-ion battery collector foil, but again this wouldn't react with anything as far as I can see. Probably just crappy BBC reporting as usual with no-one actually knowing anything about science.

Morgan - 8-3-2020 at 10:39

One other thought is maybe in the process of being chomped on, the battery was primed to eventually short out internally.