Guessing the planned time. Effective trick and its solution

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Guessing the planned time. Focus Secret

Spectacular tricks and their clues

Directory / Spectacular tricks and their clues

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Focus Description:

The magician guesses the time that one of the spectators conceived

Focus secret:

The magician, taking a watch in one hand and a pencil in the other, offers to demonstrate his ability to guess. To do this, he invites one of those present to write or think of any hour.

When this is done, the magician, without asking any questions, begins to strike with a pencil on the various divisions of the dial, asking the person who conceived the hour to count the blows in his head, starting from the number he conceived (for example, if the number he conceived is nine, he must count the first blow as ten, the second after eleven, etc.).

When he reaches twenty in this way, he must say "stop" when the magician's pencil rests on the very hand of the dial that shows the hour he first conceived.

This interesting little trick is based on simple arithmetic, but the secret is so well kept that it can hardly be discovered. All that remains for the magician is to count the strokes of the pencil to himself, naming the first - one, the second - two, etc.

He can strike the first seven times on any hands of the dial, he can even strike the hour cover seven times, without prejudice to the final result.

But the eighth stroke must certainly fall on the hour hand of the dial, indicating twelve, and from there the pencil must go through the numbers in a row, but in reverse order: eleven, ten and nine, etc.

Following this method, you will see that with that blow, which, counting from the number conceived by the viewer, will be twenty, the pencil will point to this number.

We will try to explain this in more detail. Let us suppose that the hour conceived by the spectator is twelve. In this case, he will count the first stroke of the pencil as thirteen, the second as fourteen, and so on.

In this case, the eighth stroke will be counted as twenty; and the magician knows that on the eighth stroke he must always lower the pencil to the number eight, so that when the spectator says "Stop," the pencil will point to that number.

Suppose the intended number is eleven. Here the first stroke will be counted as twelve, and the ninth (on which, according to the rule, the pencil will rest on eleven) will be twenty.

If one hour is intended, then the first stroke will be counted as two, and the eighth, at which the pencil reaches twelve, will be counted as nine.

From here the pencil will begin its proper return journey across the dial, and on the nineteenth stroke (complementing the spectator's twenty count) it will just reach the number one.

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