Richter Scale, developed in 1935 by Charles Richter, is typically a measurement of ground motion generally used for expressing the intensity of an earthquake. It is based on powers of ten which essentially means that an earthquake measuring ‘4’ on the Richter Scale has a recorded seismograph amplitude 10 times greater than the one measuring…
There are three types of blood vessels in the human body. These are the arteries, vessels and the capillaries. If a child’s blood vessels are joined end to end, they would measure 96,560.64 km (60,000 miles), or they could encircle the earth two and a half times. The average adult’s blood vessels measure 1,60,934.4 km…
Minerals are naturally occurring inorganic substances that have specific chemical compositions and physical properties of their own. They are solid in nature and have definite crystalline structures, and are an outcome of geological processes. They can be formed by cooling of hot melting material, evaporation, or by precipitation. Their composition ranges from pure elements to complex silicates….
A solar eclipse is an astronomical event that occurs when the moon obscures the sun for some time. There are different kinds of solar eclipse – total, annular, hybrid and partial. During a total solar eclipse, the moon completely blocks out the sun. In an annular eclipse, the moon obscures only the centre of the sun….
Sun, the pivotal element of the solar system, is a middle-aged star that is around 4.6 billion years old. This near-perfect sphere is made up of 70 per cent hydrogen and 28 per cent helium. With the amount of hydrogen left on it, it can survive for another 5 billion years. In the last stages…
Covering an area of approximately 16,62,43,550 square kilometers, the Pacific Ocean is the largest ocean in the world. It occupies about one-third of the earth’s surface, and can fit all the continents of the world taken together. The basin of the ocean is also the oldest of all ocean basins; some of the earliest rocks present here are…
