Noun

(-)

(physics) The phenomena associated with moving electric charges, and their interaction with electric and magnetic fields; the study of these phenomena.

*{{quote-magazine, date=2012-01

, author=Michael Riordan , title=Tackling Infinity , volume=100, issue=1, page=86 , magazine= citation , passage=Some of the most beautiful and thus appealing physical theories, including quantum electrodynamics and quantum gravity, have been dogged for decades by infinities that erupt when theorists try to prod their calculations into new domains. Getting rid of these nagging infinities has probably occupied far more effort than was spent in originating the theories.}}

Noun

(-)

(label) The physics of light and vision.

The light-related aspects of a device.

*{{quote-magazine, year=2013, month=September-October, author=(Henry Petroski)

, magazine=(American Scientist), title= The Evolution of Eyeglasses , passage=Digging deeper, the invention of eyeglasses is an elaboration of the more fundamental development of optics technology. The ability of a segment of a glass sphere to magnify whatever is placed before it was known around the year 1000, when the spherical segment was called a reading stone,

(label) Perception, image, public relations.

* 2007 January 1, (Mark Steyn), " Blowing a 'hinge moment' of history", in (The Jerusalem Post) :

; if you have to have victims' loved ones present, go for the widows and photogenic orphans rather than Moqtada's boys.

English plurals