Menu English Ukrainian russian Home

Free technical library for hobbyists and professionals Free technical library


TOURIST ADVICE
Free library / Directory / Tourist tips

Zigzag knot. Travel Tips

Tourist tips

Directory / Tourist tips

Comments on the article Comments on the article

The name of the node is the best match to its shape. When knitting this knot, the running end passes, as it were, in zigzags in one direction or the other.

zigzag knot very specific. It is mainly used for pulling and securing a high stack of cargo in an open truck bed equipped with high racks.

If, for example, several hundred light boxes are to be transported on such a truck, they must first of all be securely fastened. This can be done with a long rope using a zigzag knot. It is best to fasten the rope around the truck legs by holding a coil of rope in your hand, otherwise you will have to pull the entire length of the rope each time.


Rice. 62. Zigzag knot

Author: Skryagin L.N.

 We recommend interesting articles Section Tourist tips:

▪ Measuring distances by travel time

▪ Typhoon

▪ chain hoists

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

Hydrogen accumulates in the Earth's atmosphere 26.08.2021

A group of climatologists led by Eric Saltzman, professor at the University of California at Irvine (USA), received information about how the concentration of hydrogen in the Earth's atmosphere has changed over the past century and a half. Scientists have obtained similar information by analyzing the chemical composition of air bubbles imprisoned in ice deposits in Antarctica.

Scientists were able to obtain such information thanks to the unique deposits of ice that have formed since 1852 in the territory of "megadunes", undulating deposits of compressed snow in East Antarctica. They are located in a region with extremely low rainfall, due to which a relatively thin layer of ice 60-70 meters thick contains layers that have been formed over many decades.

Climatologists collected ice samples from different regions of the "megadunes", removed air bubbles from such layers and studied their chemical composition in detail. As shown by their analysis, over the past 150 years, the concentration of hydrogen in the atmosphere has increased dramatically. It has increased by about 70%, and all this growth has occurred in the last hundred years.

Measurements by Professor Saltzman and his colleagues indicated that the concentration of hydrogen grew especially rapidly in the last two decades of the XNUMXth century. This discovery came as a surprise to scientists, as researchers in the past believed that the main source of these leaks was the production of so-called synthesis gas, a mixture of hydrogen and carbon monoxide.

Its production began to decline in the 1980s, leading many scientists to believe that atmospheric hydrogen concentrations should have similarly fallen. Ice samples from Antarctica indicate that this is not the case, suggesting that there are other significant sources of anthropogenic hydrogen releases. Their search and study should be one of the main tasks for climatologists, the researchers concluded.

Other interesting news:

▪ AmberSemi digital chip for direct AC to DC conversion

▪ Low Power Instrumentation Amplifier INA828

▪ Cardio printer

▪ Robots have been taught to smell

▪ Oukitel RT7 Titan 5G Rugged Tablet

News feed of science and technology, new electronics

 

Interesting materials of the Free Technical Library:

▪ section of the site Radioelectronics and electrical engineering. Article selection

▪ article Purely English murder. Popular expression

▪ article How do meteorologists predict the weather? Detailed answer

▪ article Common flax. Legends, cultivation, methods of application

▪ article Low-frequency amplifier on the KA22061 chip. Encyclopedia of radio electronics and electrical engineering

▪ article Jewish proverbs and sayings. Large selection

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