Menu English Ukrainian russian Home

Free technical library for hobbyists and professionals Free technical library


EFFECTIVE FOCUSES AND THEIR CLUES
Free library / Directory / Spectacular tricks and their clues

Focus flip. Focus Secret

Spectacular tricks and their clues

Directory / Spectacular tricks and their clues

Comments on the article Comments on the article

Focus Description:

The magician takes four fives from a standard deck of cards and lays them out in a row. He turns his back and any number of cards are flipped 180° by the spectators. The magician points to the cards that have been turned over. If someone claims that only the five of diamonds are symmetrical, the magician repeats the trick using four kings.

Focus secret:

This trick can hardly be called a trick in its purest form, rather, it is the use of a feature of playing cards that few people know about. The reason for this feature is the difficulty in printing and cutting cards so that the pattern is exactly in the middle - even with the latest industrial technologies.

1. Consider properly the fives from the standard deck. The five is chosen because the number 5 is written with a horizontal bar at the top that runs parallel to the edge of the card. Compare the space between the stripe and the edge of the card on one side and the same distance on the other. Obviously, there is a difference, probably 1 mm, but still clearly visible to the naked eye. This can be said about all four fives. If this feature is also characteristic of your deck, you can show this trick.

2. Take four fives from the deck and put them in a row (see the picture above).

Tell one of the spectators, let's say Danila: "Now I will turn away, Danila, or even leave the room if you want. After that, you will turn any number of cards 180 °, like this." Under the pretense of showing you how to flip, flip any card or cards so that all four have the narrow gap between the number and the edge on top (i.e., at the end farthest from you).

3. Turn your back or leave the room if the audience insists that Danila does what you asked. When you turn around again, look at the cards up close - and you will understand which ones were turned over.

Focus shifter
Four fives laid out for a flip trick

4. You can repeat this trick as often as you like and let the cards be checked without fear that anyone will figure out the secret.

5. Of course, if you repeat the trick, you must do it with the cards in the same position - you will expose yourself if you return the cards to their original position.

So you have to remember after each show which cards have a narrow gap at the top and which have a narrow gap at the bottom. In practice, of course, all you need to remember is something along the lines of "spades and diamonds up". Then you will be able to tell which cards have been flipped, even if the spectators try to trick you by changing the position of the cards in the row.

6. Now look at the illustration. Do you notice any peculiarities in fives? If you eliminate the five of diamonds, you can show this trick in a much simpler way, due to the fact that the fives of spades, clubs, and hearts are not symmetrical due to the suit symbol in the center. Worms, for example, can look both up and down. Suppose someone in the audience notices this and says it out loud.

7. Say: "Very well. You are very smart spectators, you are not so easily deceived. In fact, very few cards are symmetrical - even sixes and eights have a point in the center that looks in one direction." Flip through the deck and show the audience a six and an eight (but not a diamond) to demonstrate what you mean.

8. Then, with a thoughtful air, say: "Of course, curly cards are absolutely symmetrical. I think this trick would not work with them. Let's see what happens if we take kings."

9. Take four kings (there is a straight edge at the top of the letter K, so the distance between it and the edge of the card can be measured quite accurately) and lay them out in a row. Repeat the trick with the kings - and let the audience be puzzled.

I don't think it needs to be brought to your attention that you should check to see if the fives and kings in your deck have this subtle asymmetry. Before demonstrating the trick in public, practice to accurately determine how the pattern is printed on the cards.

Author: Arnold Peter

 We recommend interesting articles Section Spectacular tricks and their clues:

▪ Without cutting the ropes

▪ guess the time

▪ Kings are carried to the top

See other articles Section Spectacular tricks and their clues.

Read and write useful comments on this article.

<< Back

Latest news of science and technology, new electronics:

Machine for thinning flowers in gardens 02.05.2024

In modern agriculture, technological progress is developing aimed at increasing the efficiency of plant care processes. The innovative Florix flower thinning machine was presented in Italy, designed to optimize the harvesting stage. This tool is equipped with mobile arms, allowing it to be easily adapted to the needs of the garden. The operator can adjust the speed of the thin wires by controlling them from the tractor cab using a joystick. This approach significantly increases the efficiency of the flower thinning process, providing the possibility of individual adjustment to the specific conditions of the garden, as well as the variety and type of fruit grown in it. After testing the Florix machine for two years on various types of fruit, the results were very encouraging. Farmers such as Filiberto Montanari, who has used a Florix machine for several years, have reported a significant reduction in the time and labor required to thin flowers. ... >>

Advanced Infrared Microscope 02.05.2024

Microscopes play an important role in scientific research, allowing scientists to delve into structures and processes invisible to the eye. However, various microscopy methods have their limitations, and among them was the limitation of resolution when using the infrared range. But the latest achievements of Japanese researchers from the University of Tokyo open up new prospects for studying the microworld. Scientists from the University of Tokyo have unveiled a new microscope that will revolutionize the capabilities of infrared microscopy. This advanced instrument allows you to see the internal structures of living bacteria with amazing clarity on the nanometer scale. Typically, mid-infrared microscopes are limited by low resolution, but the latest development from Japanese researchers overcomes these limitations. According to scientists, the developed microscope allows creating images with a resolution of up to 120 nanometers, which is 30 times higher than the resolution of traditional microscopes. ... >>

Air trap for insects 01.05.2024

Agriculture is one of the key sectors of the economy, and pest control is an integral part of this process. A team of scientists from the Indian Council of Agricultural Research-Central Potato Research Institute (ICAR-CPRI), Shimla, has come up with an innovative solution to this problem - a wind-powered insect air trap. This device addresses the shortcomings of traditional pest control methods by providing real-time insect population data. The trap is powered entirely by wind energy, making it an environmentally friendly solution that requires no power. Its unique design allows monitoring of both harmful and beneficial insects, providing a complete overview of the population in any agricultural area. “By assessing target pests at the right time, we can take necessary measures to control both pests and diseases,” says Kapil ... >>

Random news from the Archive

The computer mouse changes the way we see the world around us 29.12.2013

Even a slight experience of using a computer mouse completely changes a person's perception of their movements. Thanks to working with a computer mouse, a person begins to “generalize” his actions much better and navigate in space. This conclusion was reached by neurophysiologists who published an article in the journal Current Biology.

In an unusual experiment, which was conducted by Kording and his colleagues, 18 volunteers from China participated. Half of these people have never had experience with a computer mouse. The researchers asked their subjects to pass a light test - to touch one of the eight points on the LCD screen, located on the surface of the table, moving their hand under it.

"Working on a computer can have two problems: display sizes can be different, and existing mouse models move the cursor on the screen at different speeds. When we start working on a new computer, we want to get used to it and not learn all the movements again. If a person knows how " generalize" his actions, he only needs to make one movement for "self-calibration," says Konrad Kording of Northwestern University in Chicago.

Both groups of volunteers coped with the task equally well, however, the subjects who had previous experience with a computer mouse quickly adapted to situations in which they had to move their hand to an unusual point. It can be concluded that their brains were better able to "generalize" the techniques and information that they received in the course of training.

Having discovered this phenomenon, the researchers decided to find out what would happen if the "illiterate" Chinese learned to use a mouse even before the start of the experiment. To do this, they recruited another group of volunteers and taught their wards "literacy" with the help of computer games for two weeks.

After two weeks of training, the volunteers began to “generalize” their movements just as well as the “literate” subjects. Since in developed countries almost all people know how to work with a computer, the authors of the article proposed to take this into account in the course of research on the areas of the human brain responsible for coordination and movement.

Other interesting news:

▪ Strawberry snacks

▪ Moonshine instead of gasoline

▪ Xiaomi Mi TV Master Series TVs

▪ Alibaba AI Processor

▪ Popcorn packaging for fragile items

News feed of science and technology, new electronics

 

Interesting materials of the Free Technical Library:

▪ section of the site Audio and video surveillance. Selection of articles

▪ article General and clinical immunology. Crib

▪ article How do bees make honey? Detailed answer

▪ Hibiscus sabdarif article. Legends, cultivation, methods of application

▪ article Logical elements and truth tables. Encyclopedia of radio electronics and electrical engineering

▪ article Voltage converter on the K155LA18 chip. Encyclopedia of radio electronics and electrical engineering

Leave your comment on this article:

Name:


Email (optional):


A comment:





All languages ​​of this page

Home page | Library | Articles | Website map | Site Reviews

www.diagram.com.ua

www.diagram.com.ua
2000-2024