Kipling presents Mowgli to his readers for the first time not as a child, but as a young man. In the short story “In the Rukh” (“In the forest”), contained in the 1893 collection Many Inventions, Mowgli enlists as a British forestry official. Kipling describes him as a very experienced guy in the Indian jungle. […]
During the day time, we can see things clearly. But we switch on the lights to see them at night. If we close our eyes we cannot see anything even during day time or at night with lights on. Why is that? So, let us find what requirements should be fulfilled to have “vision”. […]
We can see the bright moon in the night sky. Because of this you must have thought that it is a luminous object. But the moon does not emit its own light. We see it as a bright object because the rays of light emitted by the sun fall on the surface of the moon. […]
Which is hotter red or blue star. Blue stars are hotter than yellow stars, which are hotter than red stars. Blue light photons have a shorter wavelength and higher energy than those of red light. It takes a hotter surface to emit blue light, so cooler stars look more reddish than hotter stars.
Born in Bombay (now Mumbai) in 1865 to British parents, Joseph Rudyard Kipling lived in India until the age of six. When, after a period of study in England, he returned to India, he worked as a writer and editor for a newspaper. Later on he said that it was in that period that he […]
This is one of the examples where history and tradition still have priority in a constantly changing world. The flourishing era for the button was the second half of the 17th century. In the upper social classes, the man, despite his high status, dressed independently, while the woman was always dressed by the servants. So, […]
You may have heard many sounds in the environment. Some of them are sounds of animals, human voices, noise of horns etc. But have you ever wondered how these sounds produce? So let’s study about that. How sounds produce? Sound is produced by vibrating something. The objects that produce sound are called sources of […]
Are you terrified of being spied on by other people through your mobile phone camera or your computer webcam? You’re right to worry about this, since unfortunately this is a real risk, but you must not fall into paranoia. This would be of no use to you. In the next paragraphs of this tutorial, in […]
The structural unit of nervous tissue is “Neuron”. The function of the neuron is to transmit impulses. Accordingly nerve cell can be divide into three types as Sensory neuron, Inter neuron and Motor neuron. Sensory neuron transmit impulses from sensory organs to central nervous system and Motor neuron transmit impulses from central nervous system […]
Bats make use of ultrasound (above 20000 Hz) waves to fly avoiding barriers. They emit ultrasound while flying. These waves are reflected back if they face a barrier. When a bat receives the reflected waves it can judge the position of the barriers and fly avoiding them.
