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

Guessing points on dice. 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 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.

 We recommend interesting articles Section Spectacular tricks and their clues:

▪ Unwrapping the candy wrapper

▪ Mystery of the Seven

▪ One of the two cards turns into a conceived

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:

Improving the efficiency of PbS quantum dot solar cells 14.06.2024

The latest solar technology research represents a significant breakthrough in improving the efficiency of PbS quantum dot solar cells. This method, based on the use of pulsed light, offers promise for simplifying the production and expanding the applications of these cells. A research team from the Daegu Gyeongbuk Institute of Science and Technology has developed an innovative method that uses pulsed light to improve the electrical conductivity of PbS solar cells. This method can significantly reduce the processing time required to achieve similar results. PbS quantum dot solar cells have significant potential in solar technology due to their photovoltaic properties. However, the formation of defects on their surface can reduce their performance. The new method helps suppress defect formation and improve electrical conductivity. Using strong light to complete the process ... >>

Magnetic Power Bank 5000mAh 14.06.2024

Huawei introduces a convenient and multifunctional charger to the market - Huawei SuperCharge All-in-One Magnetic Power Bank. This magnetic battery allows you to quickly and conveniently charge your Huawei phone anywhere, anytime. With a thickness of just 11,26 mm and a weight of 141 grams, this portable power bank fits easily into a pocket or bag, making it ideal for travel and everyday use. Despite its compact size, this battery provides enough power to charge your phone on the go. The new product supports wired charging with a power of 25 W and wireless charging up to 15 W (and up to 30 W when connected to an adapter), providing fast charging for both the power bank itself and other devices. The battery is compatible with various fast charging protocols such as SCP, UFCS and PD, making it ideal for a wide range of devices. The power bank is also compatible with Huawei phones that support wireless charging. ... >>

Changes in a father's brain after the birth of a child 13.06.2024

A recent study conducted by scientists from the Hefei Institute of Physical Sciences of the Chinese Academy of Sciences found interesting changes in the brains of men after becoming fathers. These changes were associated with involvement in child care, sleep problems, and mental health symptoms. Scientists found that men who became fathers experienced a loss of brain volume after giving birth. This volume loss was associated with greater involvement in parenting, sleep problems, and mental health symptoms. Researchers have found significant changes in men's brains between the prenatal and postnatal periods. In particular, there was a loss of gray matter volume, especially in parts of the brain responsible for higher functions such as language, memory, problem solving and decision making. Men who paid more attention to their children and spent more time with them lost more gray matter in their brains. This also affected their mental health ... >>

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.

Other interesting news:

▪ Iogear GUD3C02 Portable Docking Station

▪ Unmanned train from Deutsche Bahn and Siemens

▪ Car cigarette lighter in the system unit

▪ Stanen is a competitor of graphene

▪ New helmets of the Swiss Guards are printed on 3D printers

News feed of science and technology, new electronics

 

Interesting materials of the Free Technical Library:

▪ site section Parameters of radio components. Article selection

▪ article There is no truth at the feet. Popular expression

▪ article Who sets fashion? Detailed answer

▪ article Podophyllum thyroid. Legends, cultivation, methods of application

▪ article Calculation of power supplies. Encyclopedia of radio electronics and electrical engineering

▪ article Sticky stick. Focus Secret

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