Friday, 25 October 2013

The combat dance of rattlesnake is one of Nature’s great oddities. Actually, it is not a dance but a curious kind of wrestling combat, and it is believed to be rooted in the instinct of all animals to protect their own territory. The encounter takes place when two angry snakes, one of them an intruder, meet head-on. The combatants pause for a moment, and then, with a sudden convulsive movement,...

Sunday, 20 October 2013

The Sun and its energy Most of our energy comes from the Sun. The Sun is a big ball of glowing gases, made up mostly of hydrogen. Inside the Sun, hydrogen atoms join together (through a process called nuclear fusion) and become helium. During the fusion process large amount of energy is released. The energy works its way to the Sun’s surface and then radiates out into space in the form of waves....

Saturday, 19 October 2013

   Nursing a sick child often requires more skill and understanding. The mind of a child works differently. He has no experience to guide him. A sick child is naturally afraid, even if you have told him he will be well again in a few days. Child’s imagination: Every child has a highly active imagination, which becomes even more sensitive when he is sick. You must be careful not...
The dog family includes wolves, foxes and jackals. The familiar domesticated dogs, which have been bred into a huge number of different shapes and sizes, probably originated from the grey or timber wolf. Unlike cats, dogs tend to hunt in groups, called packs. Their long, powerful legs enable them to run well and for long periods. The common or grey wolf,  the largest of the dogs and found...

Wednesday, 9 October 2013

One of the richest sources of protein is the soy bean. This simple food contains a complete protein. It has been cultivated in China and Japan for centuries. Soy beans actually contain twice as much protein, ounce for ounce, as meat and four times as much as eggs. Soy beans also contain a high quality vegetable oil that has no cholesterol in it. Soy oil contains lecithin, which s of value...

Monday, 7 October 2013

Antoine Henri Becquerel (1852-1908) was a French Physicist who discovered radioactivity. Some substances, when they have been exposed to bright sunlight, glow in the dark for some time afterwards. This effect is called Phosphorescence. Henri Becquerel followed in the footsteps of his father and grandfather who had both been well-known physicists. He was interested in crystals which glow (fluoresce) after...
Mosquito, a two-winged ‘little fly’ is a menace to humankind. It causes blood loss, transmits diseases like malaria, filaria, dengue, chikungunya, and Japanese encephalitis. There is incredible diversity in the mosquito family. Weighing only about 2.5 milligrams, mosquitoes have survived through the ages. Fossil and zoogeographic evidence suggest that these insects evolved during the dinosaur...