How did mining safety lamps work?

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Offline thedoc

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How did mining safety lamps work?
« on: 20/05/2015 12:06:39 »
Humphrey Davy invented the safety lamp in 1815 to prevent naked flame igniting the so-called fire-damp gas in mines. I believe that basically a gauze shield surrounded the flame. However air could enter or there would have been no flame for the lamp. My question therefore is why didn't the fire-damp gas also enter?
Asked by Peter Riddell

                                        Visit the webpage for the podcast in which this question is answered.

[chapter podcast=1001045 track=15.05.19/Naked_Scientists_Show_15.05.19_1003671.mp3]  ...or Listen to the Answer[/chapter] or [download as MP3]

« Last Edit: 20/05/2015 12:06:39 by _system »