That usually refers to a line that is perpendicular (at right angles, i.e., at a 90° angle) to something else - for example, to the plane of a mirror.
Variously: physics, optics, quantum mechanics, etc.
Optics.
They use optics
Pressure is defined as the derivative of normal force with respect to surface area. Pressure is proportional to the normal force, and inversely proportional to the surface area. As the normal force over a surface area varies so does pressure. In the case that pressure is increasing then either the normal force is increasing, the surface area of which the normal force is being exerted is decreasing, or the combination of both of these is occurring.
Mechanics Thermodynamics Sound Light Optics Magnetism Electricity
Albert A. Michelson has written: 'Studies in optics' 'Studies in optics' -- subject(s): Optics 'Studies in optics' -- subject(s): Optics
A departure from the normal or usual actions. A temporary or minor mental unbalance. In optics - A distortion in the lens.
Variously: physics, optics, quantum mechanics, etc.
W. A. Douthwaite has written: 'Contact lens optics and lens design' -- subject(s): Contact lenses, Optics, Physiological optics 'Contact lens optics' -- subject(s): Contact lenses, Optics, Physiological optics
yep, if he was normal in that respect
Net Optics was created in 1996.
Applied Optics was created in 1962.
Progress in Optics was created in 1962.
Samyang Optics was created in 1972.
Optics Letters was created in 1977.
Optics Communications was created in 1969.
Samyang Optics's population is 105.