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Brodino

Can something non directly exposed to fire start burning?

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It's 3 am in the morning and i'm asking myself: if we were to put a wood plank into an ipotetic electric oven that could reach infinite C°, would the wood catch fire or melt into a blob of atoms?

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Posted (edited)

As long as there is Oxygen around it will catch fire, once it is hot enough.  On a hot sunny day, you could start a fire with paper and a magnifying glass.

Edited by mathematic

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Wood is not like most cases. When wood is heated, the water boils away first and then the lignin and will react with oxygen and burn. Basically, wood will oxidize before it would be able to melt.  Its physical structure is destroyed and it won’t be able to return to its original matter.

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On 5/17/2020 at 2:39 AM, Brodino said:

It's 3 am in the morning and i'm asking myself: if we were to put a wood plank into an ipotetic electric oven that could reach infinite C°, would the wood catch fire or melt into a blob of atoms?

Look up 'auto ignition' temperature...  as mathematic suggested above, if it's combustible and there is oxygen then most materials have a temperature at which they ignite.

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On 5/16/2020 at 8:39 PM, Brodino said:

It's 3 am in the morning and i'm asking myself: if we were to put a wood plank into an ipotetic electric oven that could reach infinite C°, would the wood catch fire or melt into a blob of atoms?

If a flammable mass is exposed to a heat equal to or greater than its flash point, assuming that the stoichiometry is correct, it will burn. Even if there's no flame, as long as it's heated to a high enough temperature, it will burn. It would break down into ash and smoke first, then those will become plasma as they're heated up more.

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If fire can only be initiated by an earlier fire, how did the first fire start? :-)

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Posted (edited)

Here's a good demonstration of a fire piston. A very cool bit of ancient technology.

 

Edited by Endy0816

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