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J. Perelman
"Entertaining physics". Book 1.
Chapter 8. Reflection and refraction of light

DRAWING IN FRONT OF THE MIRROR

Force mirror reflection of the original is still visible in the following experience.

Put in front of a sheer on the table mirror, put a piece of paper and try to draw on it any shape such as a rectangle with diagonals. But don't look right at your hand, and watch only the movements of the hands, reflected in the mirror.

You will see that such an easy task almost impossible. For many years, our visual experience and motor sensations managed to come in a certain line. The mirror breaks this link, as it represents the eyes, the movement of our hands in a distorted form. Old habits will protest against every of your movement: you want to draw a line to the right and the left hand pulls, etc.


Drawing in front of the mirror.

Even more unexpected oddities you will find, if instead of a simple drawing will try to draw in front of a mirror more complex shapes or write something, looking at the lines in the mirror: will be comical confusion!

The prints obtained on carrying the paper, is also the mirror image symmetrical. Consider the labels, esperase your throughput paper, and try to read them. You can't understand a single word, even quite distinct: the letters have an unusual slant to the left, and most importantly, the sequence of the strokes are not the same as what you are used to. But put to paper the mirror at the right angle and you'll see all the letters written way you used to see. The mirror gives a symmetric reflection of what is itself a symmetric image of ordinary letters.

Entertaining physics J. Perelman

 




System Orphus

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