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Place the thinly silvered mirror between two rooms. The silver on the mirror will reflect a small amount of light, but most of the light will pass through the mirror.
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Adjust the lighting so that one of the adjoining rooms is very dim and the other is very bright.
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Look through the mirror while standing in the bright room. In this room, a lot of light is directed at the mirror. Therefore, even the small amount that is reflected is enough to make the surface look like a mirror.
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Look through the mirror while standing in the dim room. In this room, very little light is directed at the mirror. However, a lot of light from the other room is passing through the mirror into the dim room. Therefore, you will be able to see through the mirror.
The Drip Cap
- Making a one-way mirror may seem complex.
- After all, you probably have to do something to one side of a mirror to make it transparent.
- In this room, a lot of light is directed at the mirror.
- Look through the mirror while standing in the dim room.