Menu English Ukrainian russian Home

Free technical library for hobbyists and professionals Free technical library


TOURIST ADVICE
Free library / Directory / Tourist tips

Fire escape. Tourist tips

Tourist tips

Directory / Tourist tips

Comments on the article Comments on the article

In the daily activities of sailors, steeplejacks, builders, firefighters, mine rescuers and rock climbers, it is often necessary to use the so-called pendant with musings. In the Navy, a pendant is a vertically hanging plant cable, fixed to something by the upper part, and musings are thickenings on it, woven into it in the form of knots, at regular intervals. With the help of such cables, the sailors sit in the boats standing at the side of the ship. But the made pendant with musings is not always at hand when you urgently need to go down the cable overboard or climb a sheer wall if there is neither a ladder nor a ladder.

Imagine, for example, such a situation. A man fell into the water from the deck of a ship in the port. On the deck there is a free coil of plant cable. If you drop a line to a fallen one, it is unlikely that he will be able to climb aboard: the cable may be synthetic, and in the port there is usually a layer of oil on the surface of the water. The hands of a person who has fallen overboard will slide along a cable that does not have musings. In such a situation, it helps "fire escape".

Simple node is an integral element of many useful knots. The "fire escape" consists of a series of simple knots that are knitted one after the other very quickly (20 knots can be tied in half a minute). It is magnificent in its simplicity and effectiveness, but it requires skill and clarity in execution.

The knitting of this knot begins with the formation of a certain number of pebbles wound one after another. Take the running end of the cable in your left hand, stepping back from its edge 15-20 centimeters. Make the first stick with a diameter of no more than 10 centimeters so that the root end of the cable is at the bottom. Then make exactly the same pebble and press the thumb of your left hand to the tips of the others. In the same way, make 5-7 pebbles, evenly stacked one on top of the other. So that they do not move out and are not tangled, put them on the fingers (except the thumb) of the left hand extended upwards. You will get a kind of rope "glass". Carefully remove it from your fingers so that it does not crumble or flatten. Now the running end that you held in your left hand, pass inside this "cup" and bring it out on the other side. Place the "glass" on your left palm and clasp it on all sides with five fingers. With the bent fingertips of the right hand, hold the upper hose of the "cup" and slowly, without jerking, pull the running end of the cable sticking out of the "cup" up. As this running end is pulled out, simple knots will be tied on it. Their number will correspond to the number of pebbles made, and the distance between them will correspond to the length of their circumference.

In the described way, the knots can be quickly tied, fasten one end of the rope to the battery, to the leg of the bed (table), throw the other end out the window and, if necessary, go down the rope (for example, in case of fire).

Such a situation is also possible. You need to pull out a car stuck in the mud. There is a long rope and people ready to help. To make it more convenient for them to pull, tie a "fire escape" on the ground so that the knots go through about every meter.

Author: Skryagin L.N.

 We recommend interesting articles Section Tourist tips:

▪ The first actions on a halt

▪ upland game

▪ boatswain 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

Over 10Gbps speed shown for 5G on the move 27.07.2018

NTT DoCoMo, AGC and Ericsson successfully field-tested fifth-generation (5G) mobile communications technology in a vehicle driven at high speed in Japan.

During testing, the frequency range of 28 GHz was used. The vehicle was equipped with special antenna modules mounted on glass surfaces. In total, experts used eight such modules - on the side windows, windshield and rear windows. This ensured the reception of signals from any direction.

The tests were carried out on a section of the road with a length of 2,2 kilometers. 5G mobile equipment was installed in the car, and three stationary base stations were installed on the territory of the test zone.

As a result, it was possible to show throughput at the level of 8 Gbit / s when the car is moving at speeds up to 100 km / h. Moreover, the bandwidth of the channel reached 11 Gb / s while reducing the speed of the car to 30 km / h.

Thus, tests have shown that 5G networks will provide connected cars and self-driving vehicles with ultra-fast communication channels. This will usher in an era of completely new services and telematic services.

Other interesting news:

▪ Glasses will always be clean

▪ Flexible and transparent 18-inch OLED display from LG

▪ Astronauts will be sent to the captured asteroids

▪ The counterfeiter's trap of the XNUMXst century

▪ The impact of fast food on sleep and memory of adolescents

News feed of science and technology, new electronics

 

Interesting materials of the Free Technical Library:

▪ section of the site Aphorisms of famous people. Article selection

▪ article Economics of the enterprise. Lecture notes

▪ article What explains the cute behavior of slow lorises when tickled? Detailed answer

▪ article Work on waxing machines. Standard instruction on labor protection

▪ article Glazes, enamels. Simple recipes and tips

▪ article Mineral fertilizers. Chemical experience

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