Comment Re:Resistance to Power (Score 1) 90
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Actually the issue is the amount of power the device dissipates. Lowering the resistance of the device the current is flowing though, lowers the voltage for the same current flow. Power = Voltage X Current So if you lower the voltage for the same current, the device heats up less, it wastes less as heat.
Disputation is how much heat the device must get rid of to stay within it's working temperature range. If it gets too hot, it will stop working, so you have to get rid of all the power it wastes as heat. If you cannot get rid of the heat, you must slow the device down, or make it bigger so there is more surface area to get rid of the heat.
So this power issue really is a heat issue and if you can lower the power being turned into heat, you can make devices that run fast and are smaller.