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Mirrors also get dirty quickly and can be hard to keep clean and replace. Since theme parks aim to optimize guest experiences by keeping things neat and clean, it makes sense to eliminate these ...
A very complex dielectric mirror can reflect up to 99.999% of the light incident upon it, for a narrow range of wavelengths and angles. A simpler mirror may reflect 99.9% of the light, but may cover a broader range of wavelengths. Almost any dielectric material can act as a perfect mirror through total internal reflection. This effect only ...
Thus a current mirror consists of two cascaded equal converters (the first – reversed and the second – direct). Figure 1: A current mirror implemented with n–p–n bipolar transistors using a resistor to set the reference current I REF; V CC is a positive voltage.
A mouth mirror or dentist's mirror is an instrument used in dentistry. The head of the mirror is usually round, and the most common sizes used are No. 4 (⌀ 18 mm) and No. 5 (⌀ 20 mm). [ 1 ] A No. 2 is sometimes used when a smaller mirror is needed, such as when working on back teeth with a dental dam in place.
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