Menu English Ukrainian russian Home

Free technical library for hobbyists and professionals Free technical library


BIG ENCYCLOPEDIA FOR CHILDREN AND ADULTS
Free library / Directory / Big encyclopedia for children and adults

Why did barge haulers drag the ship along the shore, although they could walk along the deck? Detailed answer

Big encyclopedia for children and adults

Directory / Big encyclopedia. Questions for quiz and self-education

Comments on the article Comments on the article

Did you know?

Why did barge haulers drag the ship along the shore, although they could walk along the deck?

Barge haulers did not have to walk along the shore to do their job. There were embroidered structures, where barge haulers walked along the deck, pulling the ship with a rope to an anchor brought in advance upstream. However, the delivery of anchors was too burdensome, so barge haulers still preferred the traditional move. In the 19th century, barge shipping on the Volga was partially replaced by horse navigation, when horses moved along the deck and did the work. And Ivan Kulibin invented and tested a waterway - a ship pulled to the anchor due to the rotation of the wheels by the very course of the river, but due to the high cost, the project was not widely used.

Authors: Jimmy Wales, Larry Sanger

 Random interesting fact from the Great Encyclopedia:

Why do wrinkles form?

Already in the second decade of life, the skin of the face begins to dehydrate; there is less and less intercellular water left, which makes the skin elastic. It is not noticeable at first, but over time, dry skin forms lines and wrinkles, the number and depth of which can be reduced with proper face and body care.

 Test your knowledge! Did you know...

▪ What question did the Sphinx ask the passing Thebans, and who taught her this question?

▪ What is a Gordian knot?

▪ Where did the word zek come from?

See other articles Section Big encyclopedia. Questions for quiz and self-education.

Read and write useful comments on this article.

<< Back

Latest news of science and technology, new electronics:

A New Way to Control and Manipulate Optical Signals 05.05.2024

The modern world of science and technology is developing rapidly, and every day new methods and technologies appear that open up new prospects for us in various fields. One such innovation is the development by German scientists of a new way to control optical signals, which could lead to significant progress in the field of photonics. Recent research has allowed German scientists to create a tunable waveplate inside a fused silica waveguide. This method, based on the use of a liquid crystal layer, allows one to effectively change the polarization of light passing through a waveguide. This technological breakthrough opens up new prospects for the development of compact and efficient photonic devices capable of processing large volumes of data. The electro-optical control of polarization provided by the new method could provide the basis for a new class of integrated photonic devices. This opens up great opportunities for ... >>

Primium Seneca keyboard 05.05.2024

Keyboards are an integral part of our daily computer work. However, one of the main problems that users face is noise, especially in the case of premium models. But with the new Seneca keyboard from Norbauer & Co, that may change. Seneca is not just a keyboard, it is the result of five years of development work to create the ideal device. Every aspect of this keyboard, from acoustic properties to mechanical characteristics, has been carefully considered and balanced. One of the key features of Seneca is its silent stabilizers, which solve the noise problem common to many keyboards. In addition, the keyboard supports various key widths, making it convenient for any user. Although Seneca is not yet available for purchase, it is scheduled for release in late summer. Norbauer & Co's Seneca represents new standards in keyboard design. Her ... >>

The world's tallest astronomical observatory opened 04.05.2024

Exploring space and its mysteries is a task that attracts the attention of astronomers from all over the world. In the fresh air of the high mountains, far from city light pollution, the stars and planets reveal their secrets with greater clarity. A new page is opening in the history of astronomy with the opening of the world's highest astronomical observatory - the Atacama Observatory of the University of Tokyo. The Atacama Observatory, located at an altitude of 5640 meters above sea level, opens up new opportunities for astronomers in the study of space. This site has become the highest location for a ground-based telescope, providing researchers with a unique tool for studying infrared waves in the Universe. Although the high altitude location provides clearer skies and less interference from the atmosphere, building an observatory on a high mountain poses enormous difficulties and challenges. However, despite the difficulties, the new observatory opens up broad research prospects for astronomers. ... >>

Random news from the Archive

Pistol watch 13.09.2010

A pistol stolen from a policeman will not be able to serve as a weapon for a criminal if the system proposed by German gunsmiths comes into wide use. Their new pistol is only capable of firing if the shooter is wearing a special watch connected to the pistol via a radio channel.

When the pistol is removed from the watch by more than 45 centimeters, the weapon becomes useless. The watch has a fingerprint sensor and can be programmed for multiple owners. In addition, they introduce the duty schedule of these owners, and the pistol, even when paired with a watch, will not fire while in the hands of an employee who is not currently on duty.

True, such a set costs about 10 thousand dollars.

Other interesting news:

▪ Instead of a screw - a fish

▪ Iron mining on Mars

▪ Created a biodegradable transistor based on proteins

▪ Earth's core is solid

▪ Oukitel RT7 Titan 5G Rugged Tablet

News feed of science and technology, new electronics

 

Interesting materials of the Free Technical Library:

▪ site section Low frequency amplifiers. Article selection

▪ article Accurate heading in any wind. Tips for a modeller

▪ article What events led to the fact that Venezuela came out on the 3rd place in the world in terms of sales of Viagra? Detailed answer

▪ article Head of the boiler room. Job description

▪ article Automated lighting control. Encyclopedia of radio electronics and electrical engineering

▪ article Integrated voltage stabilizers 78xx, 79xx, 78Lxx, 79Lxx, LMxxx. Encyclopedia of radio electronics and electrical engineering

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