They're not - DLC (Diamond-like Carbon) coatings are used as spacecraft coatings to make them more resistant to the harshness of space environments. The DLC technology was further developed by Diamonex Corp. into scratch resistant lenses and other similar spinoff technology.
How was fire resistant material used in space
a microscope mostly used for to investigate stars and planets in the outer space
Because lens paper will not scratch the lens. And it the proper way to clean the the lens... Email: sethalfredpacaro@yahoo.com Add me on facebook and i will answer your questions..
Concave and convex lenses both enlarge an object to a certain extend.
A "crystal" is the transparent cover used to protect a watch's dial and hands. It is mounted in the "bezel" at the front of the case. It is most commonly made from glass, but the more scratch-resistant sapphire is preferred.
How was fire resistant material used in space
A telescope
All minerals can be scratched if you used the right scratcher. Diamond can only be scratched by another diamond, and is most resistant to being scratched. In the jewelry world any thing harder than a 7 on the Mohs hardness scale is consider resistant to scratching.
This watch is scratch resistant and durable, although it looks a little too classy to be doing activities with. If you wanted to, you could with no damage to it.
Lenses made from polycarbonate, the same type of plastic used for the space shuttle windshield, are about 50 times stronger than other lens materials.
Epoxy resin can be used as a sealant on counter tops to help make them resistant to scratches. There are no countertops made of epoxy resin
a microscope mostly used for to investigate stars and planets in the outer space
primary lenses are that lenses which are maked by leunhoek .these lenses are used to see parts of different objects and these lenses had maked first.they are mostly used in ancient time. .
Convex lensesConverging lenses
Because lens paper will not scratch the lens. And it the proper way to clean the the lens... Email: sethalfredpacaro@yahoo.com Add me on facebook and i will answer your questions..
Fresnel lenses were originally designed to be used in Lighthouses. Since then, these lenses have been used in car headlights, on televisions, in solar cookers and other things.
Melamine is a strong, lightweight plastic-like material. It's dishwasher safe and scratch-resistant. However, Melamine should not be used in the microwave.