Zoom lens pertain to a camera lens of variable focal length that can be changed while shooting, thus allowing the the camera to photograph from wide-angle to telephoto range in the same shot.
Ref: 122814/2006-10-11

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Lexicon from 'X- Ray diffraction' until 'Zoom lens'
Lexicon from 'X- Ray diffraction' until 'Zoom lens'

Alternative Spellings (Synonyms): lenses
Zinc anode makes reference to a small piece of zinc metal that is secured to or placed near the underwater part of an outboard engine, metal hull, or other metal object in salt water. By attracting galvanic activity, it protects the engine, hull, and other objects from corrosion.
Ref: 120949/2006-09-27

Other Database Pages Exist for this Phrase:
Zinc (Zinc refers to the native metallic element, Zn. ...)
Dry Battery (Dry battery is a kind of battery in which the ...)
Corrosion (Corrosion is describd as the act or process of ...)

Alternative Spellings (Synonyms): Anoden

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