Many people are aware that the Earth revolves around the sun each day for 24 hours, but many do not are aware that the Earth’s rotational speed varies. This means that a day may sometimes feel longer or shorter than what we would expect. This is the reason why clocks made of atomic energy that keep a standard time must be periodically adjusted, adding or subtracting seconds. This is referred to as the leap second. This article will explain how this shift occurs, and why it’s important to our daily schedules.
A typical rotating event is precession, a oscillation of Earth’s axis of motion, similar to as a slightly off-center spinning toy top. This axial shift relative to fixed stars (inertial space) has a time lapse of 25,771.5 years. It’s also responsible for changing the direction of cyclones within the Northern and Southern Hemisphere. Other rotating events include the Chandler wobble free nutation, Polar motion.
In addition to these recurring events, the speed of a rotator can be affected by weather conditions and other factors, including earthquakes. If the core of Earth is rotating faster, a day can feel shorter. This is due to tidal force that is acting on the Earth’s surface as well as the gravitational pulls of other large objects in the Solar System such as Jupiter and Saturn. This is the reason the Earth’s speed of rotation must be accounted for when creating fun park rides like Ferris wheels and carousels.
https://northcentralrotary.org/2021/11/09/virtual-data-room-from-managing-mas-to-securing-ipos/
