Rain is a form of precipitation of water droplets that are greater than 0.5 mm in diameter. The amount of precipitation that falls all over the world may range from less than 0.1 inches per year in some deserts to more than 900 inches per year in the tropics. It is estimated that every minute…
India has the largest postal network in the world. There are about 1,55,669 post offices or outlets, of which roughly 89 per cent are outside the cities. On an average, one post office serves an area of 21.13 square km and a population of 6,602 people.
The structure of a snowflake is quite complex. It is formed from a frozen drop of cloud, which forms the nucleus. The nucleus quickly attracts water molecules around it that freeze instantly. In the process, the attracted water molecules branch out giving the snowflake a unique hexagonal shape. Since the branching out process is different…
The Akashi Kaikyō bridge links the island of Honshu to Awaji island. It has a central span length of 1991 metres, the longest span of any bridge on earth. There are other two spans or sections, each measuring 960 metres or 3,150 feet. The bridge has a total length of 3,911 metres or 12,831 feet….
The Möbius strip is formed by taking a rectangular strip of paper and connecting its ends after giving it a half twist. It is a surface with only one side and one edge. In 1858, the properties of the strip were discovered independently and almost simultaneously by two German mathematicians August Ferdinand Möbius and Johann…
The theory of evolution states that species evolved as a result of natural selection, and could adapt to harsh conditions. This theory was put forth simultaneously by the two English naturalists Charles Darwin and Alfred Russel Wallace.
