HOWTO: Build your own LASER
No doubt, this is the most incredible do-it-yourself project you would love to put your hands on. In laser, the light beams are in coherence with each other and it's easy to create too for under $175. The project is based on the concept of the first working laser ever created by Theodore H. Maiman.
All you need is a cigarette-size ruby laser rod cut from a single crystal of man-made ruby with ends coated with reflecting mirror surfaces and a powerful electronic photoflash unit.
This wonderful project gives you a plethora of options to experiment with, as in modern science laser technology is applicable in highly varied applications, including consumer electronics, information technology, science, medicine, industry, law enforcement and the military.
Via: modernmechanix
