brilliant instructable :) im going to go and try that now. Im studying engineering and technology and think fuel cells are extremely interesting and could become the future, expecially hydroged based or methanol based fuel cells.
By the way, if you've got a camp fire you dont really need the light do you... :D
but i still think its a great idea and would do the very same thing on a camping trip :)
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The majority of my work is in black and the aluminum has always been 6061. It has always come out like a commercial job, a deep neutral black. Perhaps the technique I use makes the difference.
Aluminum is a silver-like metal with a slightly bluish tint. It has a melting point of 660°C (1,220°F) and a boiling point of 2,327-2,450°C (4,221-4,442°F). The density is grams per cubic centimeter. Aluminum is both ductile and malleable. Ductile means capable of being pulled into thin wires. Malleable means capable of being hammered into thin sheets.
The reaction between sodium hydroxide and a few metals is also hazardous. Aluminium reacts with lyes to produce hydrogen gas. Since hydrogen is flammable , mixing a large quantity of a lye such as sodium hydroxide with aluminum in a closed container is dangerous—especially when the system is at a high temperature, which speeds up the reaction. In addition to aluminum, lyes may also react with magnesium , zinc , tin , chromium , brass or bronze —producing hydrogen gas.
On 13 October, the government nationalized the company, the bill making this possible having been passed by the Parliament one day earlier.