Essentially what you need to do is adjust the angle of the material with respect to the light beam such that it is larger than the critical angle for the material/medium interface. This results in total internal reflection (meaning zero transmittance). Probably the best way would be to use a Peizoelectric material, which will mechanically deform under an applied voltage.
From the block diagram it appears that the engine itself provides the power to heat the water. So what happens if you need to "cold start" the car when there is no hydrogen present in the engine? Obviously the energy to start the chemical reaction which will produce hyrdogen must come from somwhere else.
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Essentially what you need to do is adjust the angle of the material with respect to the light beam such that it is larger than the critical angle for the material/medium interface. This results in total internal reflection (meaning zero transmittance). Probably the best way would be to use a Peizoelectric material, which will mechanically deform under an applied voltage.
From the block diagram it appears that the engine itself provides the power to heat the water. So what happens if you need to "cold start" the car when there is no hydrogen present in the engine? Obviously the energy to start the chemical reaction which will produce hyrdogen must come from somwhere else.
If my DSL were 100 times faster I would be too busy looking at pr0n to post here.