Category: Time

Temporal Tinkering: Reevaluating the Definition of the Second in a Changing World

The current definition of the second The second, as we know it today, is a fundamental unit of measurement in the International System of Units (SI). It is defined as the duration of 9,192,631,770 oscillations of a specific type of caesium atom under specific conditions. This definition was established in 1967 and has served as

Earth’s Close Encounter: Exploring the Differences Between Perihelion and Aphelion

The Earth is constantly moving in an elliptical orbit around the Sun. This means that the distance between the Earth and the Sun varies throughout the year. There are two points in the Earth’s orbit that are of particular interest: perihelion and aphelion. Perihelion is the point in the Earth’s orbit where it is closest

The Earth’s Precise Rotation: Exploring the Relationship Between the Spin and Orbit

One of the most fundamental aspects of our planet Earth is its rotation, which is responsible for the alternation of day and night and the circulation of the atmosphere and oceans. However, the Earth’s rotation is not just a random spin, but is closely tied to its orbit around the Sun, which takes one year

The True Solar Noon in Perth: Calculating the Time When the Sun is Directly Overhead Using W.A. Time from Southern Cross

Understanding Solar Noon Before we look at the specific question of what time the sun is directly overhead in Perth, it’s important to understand the concept of solar noon. Solar noon is the time when the sun reaches its highest point in the sky for a given location. It’s an important concept for a number