  The earth's mantle is not made of metal but is a mixture of many somewhat molten rocks, most as oxides, meaning the mantle may be more oxygen than metal. The metals it â¦ has the most of are magnesium, iron, and aluminum. There's also lots of silicon, which is not really a metal. 6 people found this useful.
We are the leading aftermarket supplier of used cosmetic lasers and used aesthetic laser systems. The Cosmetic Laser Warehouse stocks a large selection of pre-owned cosmetic laser equipment and cosmetic laser handpieces. We are not medical laser brokers. Most websites on the internet are broker operated.
No, not in light sabers! For one thing, lasers can be used in a device called a spectrometer. A spectrometer uses light to identify the chemical composition of matter. For example, as light passes through a gas, the gas soaks up certain colors, or wavelengths, of light. Different gases absorb different wavelengths.irst, the light from a laser contains exactly one color or wavelength rather than a lot of different wavelengths. Scientists say that laser light is  monochromatic , meaning of one color. Flash is required to view this animation. Second, all the wavelengths are in phase.