本帖最後由 dye 於 2011/2/15 11:58 編輯
Are you sure the electric heating element of the hair dryer will "burn" any oxygen away? How about a safer way with air from freezer, or air from top of a block of ice? If temperature is an issue, cooler air should be able to do it better, right?
Actually I found an even more likely answer, it fits with all observations I seen so far in my life:
I think the wind blow the chain reaction of the fire away. In order for the flame to continue, the last reaction must be in proximity with the next reaction in order to transfer the heat.
With the air moving so fast, it outpace the reaction front.
This is observable as the wind gets stronger and stronger, the flame moves away from the head. At certain wind speed, the flame will bound to be too far from the fuel source.
** I think the temperature idea is correct only concerning candle because of the way the fuel is supplied (vapourization of the wax). It is incorrect in the general sense. |