7 items in this section. Displaying page 1 of 1
Why Do Stars Twinkle?
Watching stars on a moonless night can be an quite an interesting experience. As clusters of stars take familiar forms – of a bear, a man in armor wielding a sword, millions of other stars simply twinkle. As if they were playing hide and seek with one’s eyes. We all know that each star is actually like the sun. And the huge collection of stars on the night sky is like a collection of many, many suns....
What is a Volcano?
What is nature’s most powerful, most destructive, most dangerous form? Some would say an earthquake, others a cyclone. However, these phenomenon are relatively smaller and less destructive in scale compared to the fury of a volcano. Fourteen miles southeast of Naples in Italy, lie the remains of an ancient town called Pompeii. The city flourished under the shadows of the towering Mount Vesuvius. In 79 AD, the volcano erupted, destroying the cities of Pompeii, Herculaneum, Stabiae and Torre Annunziata....
Why does Cutting Onions Make us Cry?
If you cut an onion, you begin crying. Have you ever wondered why this happens — why onions make tears run down your face? Well, onions contain a oil, which has lots of sulphur in it. When you cut the onion, this oil is released. It evaporates very fast. When the oil gases reach your eyes, it causes irritation and sends signals to your tear gland to produce tears. So that the tears can wash away the irritant from your eyes....
Treaty on Global Warming
In the last week of July 2001, representatives from 178 countries met in Bonn, Germany, for something that is very crucial to their future and the very survival of our planet. They signed a historic agreement that promises to fight global warming. This is the first international treaty of its kind that seeks to check the excesses of human development at the cost of the environment – and the planet itself. Location and date marker for glacier in Jasper National Park in Canada....
Global Warming
Konish Biswas, a student of Standard VIII puts forth his views on a problem that is affecting the whole planet. Nowadays as you know, there is a lot of pollution in the atmosphere. The level of carbon dioxide and other such gases (known as greenhouse gases) is rising. These gases trap the heat and do not let it escape from the atmosphere. Global Warming [Illustration by Sudheer Nath] When the presence of these gases goes beyond a level, the temperature rises....
Gaseous twist to the Delphic legend
August 26: In ancient Greece, like a magnet, the shrine at Mount Parnassus, in Delphi, attracted people from all over Europe. They were drawn by the prophetic powers of the Pythia, or priestess of Apollo, who was famous as the Oracle of Delphi. It was said she could foretell everything, from the result of wars to new twists in day-to-day family problems. But, from where did the Oracle get her prophetic powers? Legend says that high priest of the shrine, Plutarch, thought that the Pythia got her prophetic powers by inhaling some special gases, which would lead her to a state of trance....
The Big Meltdown
September 23: Earth is the only planet with an atmosphere congenial to life forms as we know of. If a blanket of air didn’t surround us…our planet would have been a frozen wasteland – much too cold for human habitation. We have a lot to be thankful for. But we humans have been taking things for granted. As a result, this protective blanket is now slowly suffocating us. The Big Meltdown [Illustration by Sudheer Nath] According to a worldwide study carried out by the World Wildlife Fund....
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