Meaning of "exposed to air"
I found the following sentence on a Youtube video. Though I can understand the meaning of the sentence without difficulty, I cannot understand the associated grammar. Therefore, I would really appreciate it if someone could let me know what is the meaning of "exposed to air" in the following sentence. Is it something related to second conditionals?
The filament inside a light bulb could glow for a long period because it contained within a vacuum. Exposed to air and it simply burn out in seconds.
Reference video with time:-
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" Does that make more sense?
- " Does that make more sense?
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He says "Expose it to air, and it would simply burn out in seconds."
Does that make more sense?
0dileepa Expose it to air and it simply burn out in seconds.
https://en.wikipedia.org/wiki/Combustion#Reaction_mechanism, or burning, is an exothermic chemical reaction that releases heat. But a source of oxygen is requ
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