But it isn't hard to separate a small mass of water with low thermal mass from your "a LOT of water", is it? If your nanoparticle solution boils ten liters of water in the first minute, pour out ten liters of water over your black heat absorber, and it will boil in about a minute, too.
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But it isn't hard to separate a small mass of water with low thermal mass from your "a LOT of water", is it? If your nanoparticle solution boils ten liters of water in the first minute, pour out ten liters of water over your black heat absorber, and it will boil in about a minute, too.