The earth accelerated its rotation: a second of lost for humanity – Linfo.re

86,400 seconds is the time that the earth gives to take a complete tour of itself. However, This is the reason why our days last 24 hours. Moreover, But concretely, that was not always the case. Meanwhile, About 230 million years ago, when dinosaurs were still the kings of the world, a day lasted around 23 hours. Consequently, And if we made observations made by scientists in recent decades. Moreover, in approximately 200 million years, one day, will last 25 hours, since our planet tends to slow down. Furthermore,

Even if these forecasts are made over millions of years. the speed of rotation of earth accelerated its rotation: second new the planet varies on shorter scales. Since 2020, our earth accelerated its rotation: second planet has been more and more quickly. There could be several explanations behind this acceleration. In particular the influence of the moon, earthquakes, volcanic activity or even the melting of ice. Since 1972, we have therefore added a second to universal time so that it coincides with astronomical time. The operation comes when the lag between the two exceeds 0.9 seconds.

Shorter days. some computer problems – Earth accelerated its rotation: second

This acceleration is so sudden. that the scientists of ISS (International Earth Rotation Service), the organization in charge of unifying world clocks, hesitates to add, in 2029, a second (inter -lap) negative at the coordinated universal time (UTC) to maintain it synchronized with astronomical time. Concretely, that means that from 2029, our clocks could go from 23 hours 59 minutes and 58 seconds earth accelerated its rotation: second new … at midnight. A difference so short that it will not even be felt.

This is the first time in earth accelerated its rotation: second history that scientists have to withdraw a second. There could be big repercussions on all computer systems that have never had to face a negative second. It could break servers, distort databases and disturb the algorithms of large companies. Meta, Amazon and even Google have already shared their concerns to the scientific community.

Even if this sudden acceleration is still unexplained. the earth will eventually slow down its rotation at one time or another. “” Most scientists believe that it is an internal phenomenon to the earth. Oceanic. atmospheric models do not explain this considerable acceleration “Explains Leonid Zotov. an expert in terrestrial rotation at the State University of Moscow, interviewed by our colleagues from TF1.