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| Birthday synoptic chart. |
| 1855 y. |
The synoptic map of "foreseeable future, at the same time" is a geographical map on which the common signs are shown the results of observations of many weather stations.This map gives a visual representation of the weather at the moment.In sequential mapping investigates the direction of movement of air masses, the development of cyclones, moving fronts.
Analysis of synoptic maps can predict weather changes.You can track changes in atmospheric conditions, in particular the displacement a...
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| Beginning era recordings - Thomas Edison received a patent for the phonograph. |
| 1878 y. |
February 19, 1878 the American inventor Thomas Edison patented a device for mechanical recording and playback of sound, which he called the phonograph.This invention was the beginning of the era recordings.Main merit of the device was that the sound recorded on the foil, can be reproduced.
The first recordings were a crater on the surface of the foil made by moving the needle.Foil was placed on the cylinder, rotating with audio playback.Device cost $ 18.Public demonstration of the device ...
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| Ice began a campaign of the Baltic Fleet. |
| 1918 y. |
Ice Cruise of the Baltic fleet - the rescue of ships of the Baltic fleet from being seized by Germanic and Finnish troops and transfer them from Revel and Helsingfors to Kronstadt.After the cessation of Brest-Litovsk negotiations for peace offensive began in Germany in the Baltic.
The threat of capture by the Germans of the main forces of the Baltic Fleet, icebound in Revel and Helsingfors forced to begin the operation to relocate the ships to Kronstadt.In heavy ice conditions began a cam...
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| The first number of the newspaper "Trud". |
| 1921 y. |
"Work" - one of the oldest newspapers bulk of Russia - was born Feb. 19, 1921 edition of the daily work-Russia Central Council of Trade Unions.Newspaper published that highlights the socialist competition for fulfilling the people`s business plans, improving the efficiency of social production, the issues of cultural events and educational work, and reflect the foreign policy of the Soviet state, Soviet public opinion on international issues.Copies of the first issue amounted to 150 thousand cop...
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| Finished his work the world`s first drifting research station North Pole-1 ". |
| 1938 y. |
The world`s first Soviet polar research drifting research station North Pole-1 "began work May 21, 1937.Five planes polar air expedition of the Academy of Sciences of the USSR brought scientists on an ice floe.Official opening of "SP-1" was held on June 6, 1937.Above the North Pole was raised flag of the USSR.Staff Hydrologist Pyotr Shirshov, a geophysicist, astronomer Yevgeny K. Fedorov, and radioman Ernst Krenkel, headed by Ivan Dmitrievich Papanin lived and worked in a tent, studying the Nort...
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