өлшенген қуат

The time rate at which work is done; equal to W/t where W is amount of work done in time t. Power will be obtained in watts if W is expressed in joules and t in seconds.

қуат

Electrical equipment; Power supplies

In electrostatics, the amount of electricity present upon any substance that has accumulated electric energy.

алыстан көргіштік

Eyewear; Optometry; Contact lenses; Eye surgery

Common term for hyperopia.

бифокальды көзәйнектер

Eyewear; Optometry; Contact lenses; Eye surgery

Corrective lenses that have two powers of correction. Typically the majority of the lens is corrected for distance vision while a small are is corrected for near vision. Bifocals ...

ескіру мерзімі

Eyewear; Optometry; Contact lenses; Eye surgery

Medical prescription terms were originally all written in Latin. Many of the Latin terms continue to be used today. Eyeglass prescriptions are somewhat different, and you can ...

бинокулярлық

Eyewear; Optometry; Contact lenses; Eye surgery

Both eyes.

флуоресцеин

Eyewear; Optometry; Contact lenses; Eye surgery

A tiny amount of a fluorescein dye is placed in the tear film. The color will make microscopic dots appear where the eye has become dry. Excessive staining is an indication of dry ...

призма

Eyewear; Optometry; Contact lenses; Eye surgery

A prism is a lens that will bends light towards its base. Prisms are used to measure the angle of deviation in strabismus to correcting binocular polyopia when the eyes become ...

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Ngành nghề/Lĩnh vực: Astronomy Category: Galaxy

Құс жолының көпіршіктері

The two giant bubbles of high-energy gamma rays protruding from the Milky Way, each spanning 25,000 light-years across, roughly the size of the galaxy ...