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Here's a plot of atmospheric water vapour (fog) which is the green line. The horizontal line is wavelength and the vertical line is attenuation. Liquid water is red and ice is blue. From wikipedia: The absorption of electromagnetic radiation by water depends on the state of the water.The absorption in the gas phase occurs in three regions of the ...


Infrared lasers are much more dangerous to the human eye compared to a visible laser of the same power, because infrared lasers do not trigger a blink reflex, which means the laser has much more time to damage your retina. Your other questions can be answered by reading about the many differing ways that visible and infrared light interact with matter via ...

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