Rotating Events in Our Time

Many people are aware that the Earth revolves around the sun every 24 hours, but few realize that our planet’s orbital speed fluctuates slightly. A day can sometimes seem longer or shorter than you expect. The nuclear clocks, that maintain the standard time, have to be adjusted regularly by adding or subtracting one second. This change is known as the leap second. This article will describe how this change takes place, and how it is important to our daily schedules.

Precession is a common rotating event. It is the cyclical wobble of the axis of the Earth, similar to the toy top spinning slightly off-center. This change in axial orientation relative to fixed stars (inertial spaces) has a duration of 25,771.5. It’s also responsible in changing the direction of cyclones within the Northern and Southern Hemisphere. Other rotating events include the Chandler wobble, free nutation and Polar motion.

In addition to these periodic events, the rotator’s velocity can also be affected by weather conditions and other elements, including earthquakes. If the core of Earth moves faster, a day feels shorter. This is due to the tidal forces that are acting on surface of the Earth as well as gravitational pulls coming from other objects in the Solar System, such as Jupiter and Saturn. This is the reason it’s crucial to take into account the Earth’s rotational rate when designing fun park rides like Ferris wheels and Carousels.