|
Arabic
Bengali
Chinese
English
French
German
Hebrew
Hindi
Italian
Japanese
Korean
Malay
Polish
Portuguese
Spanish
Turkish
Ukrainian
Vietnamese|
BIG ENCYCLOPEDIA FOR CHILDREN AND ADULTS
Where do icebergs come from? Detailed answer
Directory / Big encyclopedia. Questions for quiz and self-education Did you know? Where do icebergs come from? For us, icebergs are wonderful objects to study and observe. But for ocean-going ships, they pose a huge danger. One of the worst maritime disasters occurred on the night of April 14, 1912, when the Titanic hit an iceberg, killing 1513 people. An iceberg is a breakaway part of a glacier. This happens when a glacier (which resembles an ice river) moves down a valley and reaches the sea. The edge of the glacier breaks off and forms a floating iceberg. Some icebergs appear in fiords - narrow bays with high sheer walls, from where they exit into the oceans. The edges of some icebergs are broken or smoothed by waves. A significant underwater part of them remains under the surface of the water, which occasionally, having broken off, unexpectedly floats to the surface in the form of icebergs. Icebergs vary in size. Small, 5-10 meters in diameter, sailors call "growlers". But more often there are icebergs with a diameter of more than 100 meters. Individual ice mountains reach a diameter of 1000 meters. The density of an iceberg is about 90% that of water, so only one ninth of this ice mountain is above the surface, and eight ninths are hidden under water. Therefore, an ice floe 45 meters high above the water surface goes 200 meters deep. It is hard to imagine how much ice such a mountain contains. After all, some of them weigh 180 tons. Since the main part of the iceberg is under water, its movement is influenced not by the wind, but by sea currents. Icebergs gradually reach warm latitudes, where they melt. Only a few reach the warm Gulf Stream, east of Newfoundland in Canada. They represent the greatest danger to ships. Therefore, the Coast Guard in the United States constantly monitors the appearance of icebergs, alerting ships to the location of these ice mountains. Author: Likum A.
Who invented the telephone? Antonio Meucci. An eccentric, but sometimes simply outstanding Florentine inventor came to the United States in 1850. In 1860, Meucci first demonstrated a working model of an electrical device, which he called the teletrofono ("teletrophone"). In 1871 - five years before Alexander Graham Bell patented his telephone - he filed a provisional application (a kind of provisional patent) for the invention. In the same year, Meucci receives a severe burn when the boiler of the ferry to Staten Island explodes. Poor in English and living only on unemployment benefits, Meucci was never able to find $10 to renew his application in 1874. When Bell's patent was registered in 1876, Meucci sued. The fact is that two years before that, the Italian sent original sketches and working models to the laboratory of the large American telegraph company Western Union. By a strange coincidence, Bell worked in the same laboratory, and all the models sent by Meucci mysteriously disappeared. Meucci died in poverty in 1889, never having lived to see the decision of the court in his suit against Alexander Bell. As a result, all the glory of the invention of the telephone went not to Meucci, but to Bell. In 2004, the balance was partially restored. The lower house of the US Congress adopted a resolution "on the need to pay tribute to the life and achievements of Antonio Meucci and recognize his merits in the invention of the telephone." And it's not that Bell was such a notorious fraudster. For example, while still a young man, he taught his dog to say "How are you, ba?" - a kind of communication when Bella's grandmother was somewhere in another room. And he turned the phone into a practical tool. Like his friend Thomas Edison, Bell was tireless in his pursuit of the new. And, like Edison, these searches were not always successful. His metal detector, for example, was unable to locate the bullet in the body of the wounded President James Garfield. Apparently, the machine was confused by the metal springs in the presidential mattress. Bell's foray into animal genetics was driven by his desire to increase the incidence of twins and triplets in sheep. He noticed that sheep with more than two nipples give birth to more twins. But he managed to achieve only sheep with a large number of nipples. On a positive note, Bell did help invent the hydrofoil, the H.P.4, which in 1919 set the world water speed record at 114 km/h for ten years. Bell himself was eighty-two at the time, so the inventor prudently refused to come on board. Bell always referred to himself as a "teacher of the deaf". His mother and wife suffered from deafness, and among his students was Helen Keller, a well-known member of the American Society for the Blind and the author of a number of books. She dedicated her autobiography to him.
▪ Where is Mount Ararat located? ▪ Why is Pokemon games banned in Saudi Arabia?
Machine for thinning flowers in gardens
02.05.2024 Advanced Infrared Microscope
02.05.2024 Air trap for insects
01.05.2024
▪ Optical nanoantennas and gold atoms ▪ The perfect snack for heart health
▪ section of the site The most important scientific discoveries. Article selection ▪ article Sharpen the balusters (balusters). Popular expression ▪ article Is there a difference between bison and bison? Detailed answer ▪ Rosich's article. Legends, cultivation, methods of application ▪ article Grounding and zeroing. Directory
Home page | Library | Articles | Website map | Site Reviews
www.diagram.com.ua |
Random interesting fact from the Great Encyclopedia:
See other articles Section 
Latest news of science and technology, new electronics:
All languages of this page