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The process of taking in. For a person or an animal, absorption is the process of a substance getting into the body through the eyes, skin, stomach, intestines, or lungs.

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2) Modulation: Connect a microphone to this laser, and students can transmit voice through the laser beam to a distant receiver. Or use this laser as a laser stroboscope for timing.

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In the context of electromagnetic radiation, absorption is the way the energy of the radiation – e.g. light – is taken up by matter. In this process, the electromagnetic energy is transformed to other forms of energy, for example, to heat.

1) 1.5 mW: The extra power makes laser experiments and demonstrations brighter (and often easier). It’s especially useful for holography. A shorter exposure time can be used to minimize problems with vibrations.

The He-Ne Laser has been discontinued and is no longer available for purchase. PASCO recommends the following alternative:Mini Laser with Bracket (OS-8514)