Oak knot. Tourist tips

TOURIST ADVICE
Free library / Directory / Tourist tips

Oak knot. Tourist tips

Tourist tips

Sailors apply oak knot only in exceptional cases, when it becomes necessary to tie two cables very quickly. Although the connection of plant cables with an oak knot is quite reliable, it has a serious drawback: a tightly tightened knot is very difficult to untie later, especially if it gets wet. In addition, a cable tied in such a knot has less strength and, during operation, creates a danger of catching on something during its movement. Its only positive qualities are the speed with which it can be tied and reliability.

To connect two cables, their ends must be folded lengthwise together and, retreating 15-20 centimeters from the edges, tie both ends as one with a simple knot.

Rice. 20. Oak knot

Do not try to tie synthetic cables and fishing line with this knot: he crawls on them.

Author: Skryagin L.N.

We recommend interesting articles Section Tourist tips:

▪ Movement in mountainous areas

▪ dagger knot

▪ royal knot

See other articles Section Tourist tips.

Read and write useful comments on this article.

<< Back

Latest news of science and technology, new electronics:

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 ... >>

The threat of space debris to the Earth's magnetic field 01.05.2024

More and more often we hear about an increase in the amount of space debris surrounding our planet. However, it is not only active satellites and spacecraft that contribute to this problem, but also debris from old missions. The growing number of satellites launched by companies like SpaceX creates not only opportunities for the development of the Internet, but also serious threats to space security. Experts are now turning their attention to the potential implications for the Earth's magnetic field. Dr. Jonathan McDowell of the Harvard-Smithsonian Center for Astrophysics emphasizes that companies are rapidly deploying satellite constellations, and the number of satellites could grow to 100 in the next decade. The rapid development of these cosmic armadas of satellites can lead to contamination of the Earth's plasma environment with dangerous debris and a threat to the stability of the magnetosphere. Metal debris from used rockets can disrupt the ionosphere and magnetosphere. Both of these systems play a key role in protecting the atmosphere and maintaining ... >>

Solidification of bulk substances 30.04.2024

There are quite a few mysteries in the world of science, and one of them is the strange behavior of bulk materials. They may behave like a solid but suddenly turn into a flowing liquid. This phenomenon has attracted the attention of many researchers, and we may finally be getting closer to solving this mystery. Imagine sand in an hourglass. It usually flows freely, but in some cases its particles begin to get stuck, turning from a liquid to a solid. This transition has important implications for many areas, from drug production to construction. Researchers from the USA have attempted to describe this phenomenon and come closer to understanding it. In the study, the scientists conducted simulations in the laboratory using data from bags of polystyrene beads. They found that the vibrations within these sets had specific frequencies, meaning that only certain types of vibrations could travel through the material. Received ... >>

Random news from the Archive

APD-CMOS image sensor shoots at 0,01 lux illumination 15.02.2016

Panasonic has developed a CMOS image sensor with an avalanche photodiode in each photosensitive element (APD-CMOS). Through multiplication in an avalanche photodiode, it produces an electrical signal 10 times greater than that obtained with conventional photovoltaic conversion. This makes it possible to obtain clear color images, even at night (illuminance of 000 lux) or in other similar conditions.

Using a new sensor allows you to reduce shutter speed. In addition, the multiplication can be controlled by varying the voltage applied to the avalanche photodiode, allowing the sensor characteristics to be adapted to the current lighting conditions. In other words, the sensor is suitable for both shooting in the dark and in the light. The manufacturer estimates the dynamic range of the sensor at 100 dB (a conventional CMOS type sensor, according to him, has a dynamic range of 40 dB).

The main applications for APD-CMOS image sensors are CCTV cameras and industrial cameras.

Other interesting news:

▪ pack robot

▪ Logitech Reach webcam on articulating arm

▪ Notebook LG Gram Style

▪ Atomic takeover

▪ Hydrogen peroxide as a medicine for ants

News feed of science and technology, new electronics

Interesting materials of the Free Technical Library:

▪ section of the site Security and safety. Article selection

▪ Bicycle article. History of invention and production

▪ article In what country did one in five people attempt suicide? Detailed answer

▪ article Black nightshade. Legends, cultivation, methods of application

▪ article Dimmer with remote control. Encyclopedia of radio electronics and electrical engineering

▪ article VHF FM receivers with PLL. 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