Knowledge Goal - Know to Grow

Axis  ( अक्ष )   is an imaginary line on which the Earth moves around from West to East . Two points on the Earth through which this axis passes are two poles – North Pole and South Pole . Another imaginary line called Equator  (भूमध्य रेखा)   running on the Earth divides it into two equal parts. The northern half of the earth is known as the Northern Hemisphere and the southern half is known as the Southern Hemisphere . They are both equal halves. All parallel circles from the equator up to the poles are called parallels of latitudes (अक्षांश) . Latitudes are measured in degrees . Equator represents the 0° latitude. Since the distance from the equator to either of the poles is one-fourth of a circle round the earth, it will measure ¼th of 360 degrees, i.e. 90° . Thus, 90 degrees north latitude marks the North Pole and 90 degrees south latitude marks the South Pole . All parallels north of the equator are called north latitudes . Similarly, all pa...

We can see the full moon only once in about a month’s time. It is Full moon night or Poornima .  A fortnight later, you cannot see it at all. It is a New moon night or Amavasya . On this day, you can watch the night sky best, provided it is a clear night. We can’t we see the moon and all those bright tiny objects during day time because of the very bright light of the sun that does not allow us to see all these bright objects of the night sky . The sun, the moon and all those objects shining in the night sky are called celestial bodies. Some celestial bodies are very big and hot. They are made up of gases. They have their own heat and light, which they emit in large amounts. These celestial bodies are called stars. We may notice various patterns formed by different groups of stars. These are called constellations . Ursa Major or Big Bear is one such constellation. One of the most easily recognisable constellation is the Saptarishi (Sapta seven, rishi-sages)...