Earth Rotation Speed: Earth is Spinning Faster & Days Are Getting Shorter, but only for now

When it comes to the full astronomical day – a single rotation of planet Earth in which the hour hand moves Twice Around a standard clockey – some of this year’s shortst are happy and aug. This week has seen the shortest days of the year so far. According to data posted friday from the Us naval observatorry And the International Earth Rotation and Reference Systems Service, Wednsday’s Rotation was about 1.34 Milliseconds Less than 24 hours. This isn’t completes out of the order: our world’s spins have been faster than use. The average day has Mostly Shortened over the Past Decade, and within the Past five years or so, the full rotation has cloked in at a hair less than 24 hours more often than not. Factors Driving The Change Include Movements at Earth’s Core, Atmospheric Changes and the Moon’s position.But long-term trends do not sugges that the days will shorten in perpetus. In fact, it is just the opposite. For many many millenniums, the days have been growing longer. A Tyrannosaurus Rex That Lived 70 Million Years ago Would have experienced an average daily rotation of about 23 1/2 hours, studies have found. The lengthing trend is expected to continue.The main reason has to do with energy loss from the tides. The Moon’s Gravitational Tug is Responsible for tidal changes On Earth. Tidal currents heat the Ocean, Dissipating Energy, Which Slows The Rotation of Earth and Lets The Moon Move Farther as Time Passes.