Naughty cork. Effective trick and its solution

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

Naughty cork. Focus secret

Spectacular tricks and their clues

Directory / Spectacular tricks and their clues

Focus Description:

For the demonstration, you need an ordinary bottle and a cork that is slightly smaller than the bottle opening. Hold the bottle horizontally, put a cork in the neck, and have someone blow the cork into the bottle. It would seem that it could be easier.

The viewer will try - blow harder on the cork - and be amazed by the unexpected result. The cork will not only not go inside the bottle, but ... will fly into his face! The stronger the viewer blows, the faster the cork will fly back. You have the same, as it should be, the cork slips into the bottle.

Focus secret:

When the viewer blows into the neck of the bottle, he blows air into it through the hole between the cork and the walls of the neck, increasing the air pressure in the bottle, and the air forcefully throws the cork out.

Focus Naughty Cork

You do just the opposite: you do not blow on the cork, but draw in air from the hole above it. By doing so, you, on the contrary, discharge the air in the bottle, and the cork is pushed inward by the pressure of the outside air. All this works well only when the neck of the bottle is completely dry: the wet cork rubs against the walls and therefore gets stuck.

We recommend interesting articles Section Spectacular tricks and their clues:

▪ Invincible card in an envelope

▪ The balls are swapped

▪ Furnishings - tables, sideboards. Utility equipment - props

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

GE Haliade-X Offshore Wind Turbine 26.12.2022

GE Renewable Energy announced that its 12MW+ Haliade-X wind turbine received full type certification for operation up to 14,7MW from DNV (the world's largest independent certification body).

DNV is an internationally accredited registrar and classification society headquartered in Hevik, Norway. Previously, Haliade-X received certification confirming that the turbine can operate at up to 13,6 MW.

The full type certificate is a test of the safety and reliability of the turbines, according to the design specifications (Haliade-X is currently the largest wind turbine with full certification).

The certification process for Haliade-X (14.7 MW) included a series of tests on a prototype located in Rotterdam, the Netherlands. The prototype has been extensively tested since November 2019 and has set several world records for continuous power output in a single day.

“At DNV, we forecast 2 TW of installed offshore wind power by 2050. This development is also linked to larger turbines such as GE's Haliade-X. Increasing the size of the turbines, blades and tower will improve the capacity factors. We are pleased to support GE with our certification services to provide safe and reliable wind turbines that support the growth of wind power,” said Kim Sandgaard-Merck, Executive Vice President, Renewable Energy Certification at DNV

The GE Haliade-X 14,7 MW-220 offshore wind turbine alone can generate up to 76 GWh of gross annual power generation. It has the potential to power the equivalent of 20 European households and avoid nearly 000 tons of carbon dioxide emissions.

The 14,7 MW Haliade-X will be commissioned for the first time at the 3,6 GW Dogger Bank wind farm in the UK, which will be the largest offshore wind farm in the world when completed. It is a joint venture between SSE Renewables, Equinor and Vargronn, located off the east coast of Yorkshire.

Due to its size and scale, Dogger Bank is being built in three consecutive phases: A, B and C. Dogger C will use 87 Haliade-X 14 MW turbines. The first three phases will provide electricity to up to six million homes in the UK (there are about 28,1 million households in the country). In the case of the implementation of the fourth phase, the capacity of the world's largest offshore wind farm will reach almost 5 GW.

Other interesting news:

▪ Smartphones charge faster and understand voice

▪ Food of the future

▪ Fast SanDisk USB 3.1 Type-C SSDs

▪ Mattress for fast falling asleep

▪ Microchip dsPIC16CK33MC 64-bit microcontrollers

News feed of science and technology, new electronics

Interesting materials of the Free Technical Library:

▪ section of the website Experiments in Physics. Selection of articles

▪ article Raise the veil of secrecy. Popular expression

▪ article Which creatures are responsible for the color of Bloody Falls in Antarctica? Detailed answer

▪ article Nurse about pre-departure medical examinations of drivers. Standard instruction on labor protection

▪ article Checking the performance of operational amplifiers. Encyclopedia of radio electronics and electrical engineering

▪ article Prefix for microdrill control. Encyclopedia of radio electronics and electrical engineering

Leave your comment on this article:

All languages of this page

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