What changes if light enters an thermos flask for an hour?
Added (1). What changes when expansion of the Universe over the next decades causes dilation in our own Galaxy? Will there be a resultant Global Warming?
Added (2). @Argent: There is more energy in visible light at 430 nm while infrared light has less energy at 650 nm. Why then is there great rise in temperature with infrared, while when a greater rate of energy is supplied with the same fiberoptic cable, the temperature remains nearly the same? There is no change in energy noted in the thermos flask.
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What changes if light enters an thermos flask for an hour?