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

By what deeds did the Viking Thorvald, his son Eirik Raudi and grandson Leif Eirikson enter the history of geographical discoveries? 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?

By what deeds did the Viking Thorvald, his son Eirik Raudi and grandson Leif Eirikson enter the history of geographical discoveries?

The Norwegian family, of which these persons are representatives, has accomplished an outstanding feat: in just three generations it has crossed the entire North Atlantic from end to end.

Thorvald, expelled from Norway in 960 for murder, founded a settlement in Iceland.

His son Eirik Raudi (Eirik the Red), also, by the way, expelled (already from Iceland) for the murder of two of his neighbors, went further west and in 981-983 discovered the islands of Greenland, Disko and Baffin Island, Davis Strait and Cape Baffin. Leif Eirikson (Leif the Happy), the son of Eirik the Red, who inherited from his grandfather and father a passion for sailing to unknown lands, in 1004 crossed the Davis Strait and reached the coast of North America, ahead of Christopher Columbus by almost five centuries.

Author: Kondrashov A.P.

 Random interesting fact from the Great Encyclopedia:

How did national anthems originate?

The national anthem is a patriotic song sung or played on official occasions as a special sign of respect for the country. National anthems and patriotic songs serve to unite people in their common hopes and ideals. The origin of many national anthems is unknown. Often the melody was already popular as a folk song when someone wrote a patriotic lyrics to it. Only a small number of melodies were specially written for national anthems.

The most famous is the West German anthem, which was originally written for Austria by the great composer Franz Joseph Haydn. Several older national anthems and patriotic songs have the same tune but different lyrics. Some of them were sung as war songs by opposing armies in the same battle. The British anthem "God Save the Queen" has become the tune for patriotic songs in Denmark, Germany, Russia, Switzerland and all the English-speaking countries of the world.

In the United States, the words "America" ​​are sung to the same tune. The tune "God Save the Queen" was first heard in 1619. It was written by the English composer John Bull, and the first public performance of the national anthem took place on September 28, 1745.

The national anthem of the United States was written during the War of 1812. Francis Scott Kay, a Baltimore lawyer, was on board one of the British ships that attacked Fort McHenry. Kei watched the attack all night. When he saw the American flag flying over the Fort at dawn, he was so excited that he wrote the words "Star Flag" on the back of the envelope. As he was thinking about the melody, an old English song called "To Canakreon in Heaven" came to his mind.

"La Marseillaise" - the French national anthem - was a military song during the French Revolution (1789-1815). The words and music were written by Claude-Joseph Roger de Lille, a French army captain. "La Marseillaise" was adopted as the official national anthem of France in July 1795.

 Test your knowledge! Did you know...

▪ How do weeds spread?

▪ Where is the modern city, most of whose inhabitants live in caves?

▪ What determines the sex of the embryo in reptiles?

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:

Traffic noise delays the growth of chicks 06.05.2024

The sounds that surround us in modern cities are becoming increasingly piercing. However, few people think about how this noise affects the animal world, especially such delicate creatures as chicks that have not yet hatched from their eggs. Recent research is shedding light on this issue, indicating serious consequences for their development and survival. Scientists have found that exposure of zebra diamondback chicks to traffic noise can cause serious disruption to their development. Experiments have shown that noise pollution can significantly delay their hatching, and those chicks that do emerge face a number of health-promoting problems. The researchers also found that the negative effects of noise pollution extend into the adult birds. Reduced chances of reproduction and decreased fertility indicate the long-term effects that traffic noise has on wildlife. The study results highlight the need ... >>

Wireless speaker Samsung Music Frame HW-LS60D 06.05.2024

In the world of modern audio technology, manufacturers strive not only for impeccable sound quality, but also for combining functionality with aesthetics. One of the latest innovative steps in this direction is the new Samsung Music Frame HW-LS60D wireless speaker system, presented at the 2024 World of Samsung event. The Samsung HW-LS60D is more than just a speaker system, it's the art of frame-style sound. The combination of a 6-speaker system with Dolby Atmos support and a stylish photo frame design makes this product the perfect addition to any interior. The new Samsung Music Frame features advanced technologies including Adaptive Audio that delivers clear dialogue at any volume level, and automatic room optimization for rich audio reproduction. With support for Spotify, Tidal Hi-Fi and Bluetooth 5.2 connections, as well as smart assistant integration, this speaker is ready to satisfy your ... >>

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 ... >>

Random news from the Archive

Created the most accurate scales in the world 08.06.2019

Researchers at the US National Institute of Standards and Technology have created a prototype balance that claims to be a world record for accuracy.

The device is named Kibble in honor of Bryan Kibble (Bryan Kibble) from the National Physical Laboratory of Great Britain, who developed the concept of the device back in 1975.

The real embodiment of Kibble became possible after the recent abolition of the physical standard of the kilogram and linking it to the Planck constant.

The head of the project, Leon Chao, explained: "After fixing the Planck constant, the mass can be directly calculated at any level, and the kilogram should now be considered only a historically unique standard." In Kibble, the weight of the test mass is exactly offset by the force generated by the passage of an electric current through a spool of wire immersed in a surrounding magnetic field. In fact, Kibble relates measured weight to electromagnetic quantities through Planck's constant.

Other interesting news:

▪ 128x32-LED with control electronics and VISHAY video interface

▪ Processor Qualcomm Snapdragon 810

▪ Technology for measuring time with an accuracy of up to zeptoseconds

▪ MAXIM solutions for data transmission over the power grid

▪ Cheap glowing dosimeter

News feed of science and technology, new electronics

 

Interesting materials of the Free Technical Library:

▪ section of the site Application of microcircuits. Article selection

▪ article The third must go. Popular expression

▪ article What is a praying mantis? Detailed answer

▪ article Consideration of disagreements on the issues of investigation, registration and accounting of accidents at work

▪ article Chandelier Chizhevsky: questions and answers. Encyclopedia of radio electronics and electrical engineering

▪ article Super Regenerative Receiver for 90-150 MHz. 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