Instruments: Many optical instruments, such as telescopes and microscopes, are reflected by mirrors.
Safety: For example, rearview mirrors and rearview mirrors of vehicles. In some road sections, convex mirrors will be placed at the corners to remind pedestrians to pay attention to safety.
Call for help: In case of danger, you can use a mirror to reflect sunlight and send out a call for help. You should flash three times, then flash three times and finally flash three times.
Extended data
The appearance of silver mirror and aluminum mirror is very similar, but the cost of materials used for making silver mirror is obviously higher than that of aluminum mirror. Not only that, in terms of labor cost, the production process of silver mirror is also more complicated, and the price and texture will certainly be different.
Specifically, the first difference is that the silver mirror is silver, while the aluminum mirror is metal aluminum; The second difference is that the price of silver mirror is much higher than that of aluminum mirror, with low cost and durability; Difference 3: In brightness, the refractive performance of silver mirror is better than that of aluminum mirror, and it will appear brighter under the same light intensity.
Compared with the paint on the surface of aluminum mirror, the paint on the surface of silver mirror is darker, while the paint on aluminum mirror is lighter. Silver mirror is much clearer than aluminum mirror, and the geometric angle of reflection of object light source is more standardized.
The reflectivity of aluminum mirror is low, the reflectivity of ordinary aluminum mirror is about 80%, the shape and color are easily distorted, and the life is short and the corrosion resistance is poor, so it is used in Europe and America. However, aluminum mirrors are easy to produce on a large scale, and the cost of raw materials is relatively low.
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