Uses of lenses to treat the vision defects
The light rays reflect from the body to fall on the eye, Light rays refract when passing through the cornea then the lens (the convex lens), The refracted rays are collected on the retina...
The light rays reflect from the body to fall on the eye, Light rays refract when passing through the cornea then the lens (the convex lens), The refracted rays are collected on the retina...
Nanotechnology is the science and engineering of controlling the matter at the molecular scale to create devices with novel chemical, physical, and biological properties, It can change how we diagnose and treat cancer.
Open burning of plastic or rubber wastes can be dangerous to your health and the environment, The old barrels or the wood stoves do not reach high enough temperatures to destroy many of the...
People who use the computers for an extensive period of time may complain about headaches & pains in their wrists, arms & necks, These pains are due to using the computer keyboard for a...