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Guessing points on dice. Focus secret

Spectacular tricks and their clues

Directory / Spectacular tricks and their clues

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Focus Description:

The magician gives the audience 3 dice and turns away. He asks the audience to roll these dice and add up the points that have fallen out, but do not tell him how much it turned out. When the audience has counted, the magician asks them to count how many turned out on the sides of the cubes on which the cubes lie. After that, the magician asks to add the first result and the second. When the audience is done, the magician turns and says: 21! And this is the correct answer.

Focus secret:

On opposite sides of the dice, the sum of points is always 7. Therefore, on 3 dice there will be 21.

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Random news from the Archive

Hearing instead of sight 30.08.2011

A blind person can draw the world around with the help of sounds. The human brain is a very flexible system and can, if necessary, rearrange its work.

Spanish researchers from the Polytechnic Institute of Valencia, led by Guillermo Peris Fajarnes, decided to take advantage of this. They figured out how to make life easier for the blind by transferring the lost function to hearing. Scientists have created a device in the form of glasses with two video cameras, a processor and headphones. The cameras form a three-dimensional image of the surrounding space, to which the human eye is directed, and the processor turns the picture into a set of sound signals.

A person hears these signals and gradually begins to navigate in the world around him - he acquires a certain skill of "transcoding" sounds into distances and forms. "We have a natural ability to talk and at the same time determine where the fallen coin has just rang. Our system is built on this principle," Guillermo Peris tries to explain the principle of operation of the device.

Currently, four prototype eyeglasses for the blind are undergoing field tests, and ten more are waiting in line.

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