Yes, rubies are used in some LASERs. These LASERs are (not surprisingly) called ruby LASERs.
Since rubies are red, they are used in lasers.
are gems used as rubies called lasers
rubies
It is a strand of rubies
Rubies are a gemstone. Unless the cat is wearing a collar that is decorated with rubies, no cats do not have rubies.
Jewelry making (including watchmaking)Scientific jobs using Ruby lasersIndustrial rubies are used as an abrasive
They are hard, colorful, shiny and rare.
Trigonometry is used effectively in electronics.
Egyptians
Depends on the laser in some cases yes
Uncut rubies are worth more than cut rubies