Rotating Events in Our Time

Our day is shaped by many spin-related events, such as the cyclic motion of the planets around the sun or the shift workers changing between night and day shifts. Certain of them occur on a daily basis and some are unpredictable and irregular.

One of these regular rotating events is precession -the earth's wobble that is progressive on its axis of rotation, similar as a slightly off-center rotating toy top. This varying rotational angle in relation to fixed stars, also known as inertial space, has an entire cycle of 25,771.5. This is also the reason why fun park voyages such as Ferris wheels and carousels have to be constructed with a solid side-to-side bar, referred to as an axle. Another typical rotational event is the Coriolis effect, a mysterious push on a free-flowing body system that alters its revolving movements on the scale of meteorology. This is responsible for many weather patterns, including the alternating directions of cyclones in the upper and southern hemispheres.

While the majority of people are aware that the Earth rotates around its axis every 24 hours but many are unaware that the speed of this rotation fluctuates. In the end, days may feel longer or shorter than you would expect. The atomic clocks, which maintain an uniform time, need to be tuned regularly. This kind of change is called a leap second. This article will explain what it is and why it is important to our daily lives.

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