New year! Watch 13 beat!
international service of the Earth rotation IERS (International Earth Rotation Service), which is located in Paris, decided: December 31, 2016 will be one second longer. And after 23:59:59 “punch” 23:59:60 and then 0:00:00. This is equivalent to what the New year will not come after the 12th strike of the chimes, and after the 13th.
Second, the so – called leap – started to add since 1972 . Objective: minimize the difference between the real time linked to the rotation of the Earth and the atomic clocks that count. Real-time and then lagging behind due to the fact that our planet is gradually slowing its rotation. The international service of rotation of the Earth following this process and as necessary, makes adjustments. That is, it adds one second, then another. Such additives already scored more than 30. The last happened last year – then for a second longer than was the day July 30.
spinning, Spinning blue ball slower and slower
what the Earth is gradually slowing down its rotation? Some believe that the blame Luna inhibits its gravity. Others err on the atmosphere, others on ocean currents. Someone is a giant planet rotor motor and assures that it affects the cosmic radiation. Someone accuses people – say, building a reservoir and thereby create on the surface of the “goods” that prevent rotation.
There is even a hypothesis if the Earth is gradually inflated – whether inside, or at the expense of million tons of cosmic dust falling each year. From this, they say, and decelerates the speed. But the main reason no one knows.
it is Precisely known only that the planet began to slow down for a very long time. Continues to this day. What day are extended. And it goes to the fact that someday they will last for 25 hours. At least sure Leslie Morrison (Leslie Morrison) and his colleagues at the British Durham University (Durham University) who, using historical sources and observations of astronomers gathered data about the Earth’s rotation with 720 years before our era.
it turned Out that for the “reporting period” the day has lengthened on average by 2 milliseconds per century. Scientists have calculated that 25 hours in a day will be in 200 million years. As reported in the journal Рroceedings of the Royal Society A.
WAY
the passage of time can change at any time
Philip Macheel, Director of the Earth Institute at francuzskom the University of Montpellier, says: about 530 million years of Earth rotated so fast that in the day of 21 hours, a year – 420 days. A billion years ago, the day generally gave way at breakneck speed – lasted only 15 hours. This is evidenced by then lived blue-green algae, they are cyanobacteria, which literally reflected the passage of time. When the bacteria were light, they grew vertically. And in the dark – horizontally. By studying deposits of these minerals in different geological epochs, the scientists and determine the duration of the then day. Conclusions that the Earth slows down. And believed that the process goes on evenly. Until faced with a mystery.
Deposits witnessed in the history of the planet was at least two periods, when it sharply increased its speed. And gradually lengthening day suddenly shortened hours for two or three. This has happened once every 200 million years ago.
What raskrutila the Earth? She. According to Machetes, in the bowels of the planet, the processes that cause the movement of imposing masses of rocks closer to the center. Likewise, the skater – pressed his hands to the body and begin to rotate faster.
rotation of the planet sometimes speed up pieces of the mantle, dropping into the depths.
the Scientist has made a computer model of the subsoil with a fluidized bottom layer and the colder upper. And showed how there are gaps – giant avalanche that stitch transition zone.
- the center of the Earth is able to shift a huge lump of rock the size of a moon, says Musetel. It’s happened before. And can be repeated. Those 200 million years have elapsed since the last acceleration, just come to an end.
NOT NECESSARY LA-LA
do Not sing, comrades!
somewhere in this world,
where it’s always frost
bears RUB their bodies against
On the earth’s axis.
passing By them are eras,
Sleep under the ice of the sea,
RUB against the axle bears,
turning.
La-La-La-La-La La-La
goes round and round the Earth.
In the light of the studies conducted Morrison, it should be recognized that the famous “song about bears” Leonid crazy (see above) of the Comedy “the Caucasian prisoner” for many years introduced and their popularity continues to mislead millions of Russians. And not the hypothesis that the rotation of our planet to support polar bears, who RUB against the back on its axis. And unscientific phrase “goes round and round the Earth.” Proven: is just the opposite. Therefore, from a scientific point of view, the right should be singing “Revolves slower than the Earth.” Or “Slow window”.
Additional friction created by the bears, only slows down the earth’s axis.
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