How to use Magnifications in a sentence
The microscope is only intended for slight magnifications.
Lenses of various magnifications can be adapted to the carrier and moved about over the stage.
Mirrors are available in several magnifications, including 5x, 7x, 8x, 9x and 10x.
The most common magnifications are +1.0 to +3.0, in one-quarter power increments (i.e., +1.25, +1.5, +1.75).
Peepers has several different styles in magnifications from 1.25 to 3.0.Advertisement
Reader Wear has sun readers in several different colors and in four different magnifications.
In these stones, a skilled diamond grader will barely be able to see the flaws under 10x magnifications.
If the ordinary convex lens be employed as magnifying glass, great aberrations occur even in medium magnifications.
Even in powerful magnifications a good image exists in all parts of a relatively large field, and the free working distance is fairly large.
Where very short focus simple microscopes are employed, using high magnifications, it is imperative to employ a stand which permits exact focusing and the use of a special illuminating apparatus.Advertisement
Although we now know how the errors of lenses may be corrected, and how the simple microscope may be improved, this instrument remains with relatively feeble magnification, and to obtain stronger magnifications the compound form is necessary.
From this it can be seen that, as a rule, quite slight magnifications suffice to bring all representable details into observation.
For slight magnifications a revolving plane mirror fixed below the object for altering the direction of the rays suffices.
For slight magnifications rough adjustment is sufficient, but with objectives of a focus below 4 in., a fine adjustment is wanted.
In 1846 Darwin bought a compound microscope because of his need for higher magnifications (shown left ).Advertisement
Fig 9.11 A wheat root at different magnifications, infected by the take-all fungus, Gaeumannomyces graminis.
With a microscope it is possible to obtain even higher magnifications.
At higher magnifications, using a scanning electron microscope, fatigue striations can be observed (Figure 7 ).
These mounts are often fitted with slow-motion controls which are very convenient for making small adjustments, particularly at high magnifications.
At higher magnifications, using a scanning electron microscope, fatigue striations can be observed (Figure 7).Advertisement
The most used magnifications are 7x or 8x.
Magnifications for cosmetic mirrors generally range from slight (1x) to high (12x), and women with vision corrective eyewear may benefit from the higher levels of magnification.
They are often so small that high magnifications may be necessary to ascertain their presence.
Small German periscopes were usually 1 metre or 2 a metre in length and had two eyepieces giving magnifications 10 and 15 diameters.
From this it appears that each observer obtains specific advantages from one and the same simple microscope, and also the individual observer can obtain different magnifications by either using different accommodations, or by viewing in passive accommodation.Advertisement