There is a saying that "it is better to be lucky than smart." It may not really be better, but the story of nylon seems to show that it certainly helps. The story began when Wallace Hume Carothers was brought to the Du Pont chemical company. Carothers started a program aimed ...
You can't see it, smell it or taste it. But don't let the insidious signs of carbon monoxide poisoning fool you. Exposure to carbon monoxide can be lethal. Taking steps to prevent and detect carbon monoxide exposure is important to ensure a healthy home environment. The risks ...
Even though you can't see it, air is not just empty space. Air is stuff! Air is a fluid, like water. Although its invisible, air is made of tiny particle and molecules that have mass and weight. Mass is the ...
A large number of businessmen, especially fromUnited States has dedicated to the growth of a tree from the Caribbean ( who grows in India, Australia, Madagascar, Brazil and Kenya too) . The name of the tree is Jatropha and is a very resistant tree which does not need ...
The first nuclear test with an atomic bomb took place on 16.07.1945, in an unpopulated area of the State of New Mexico. The most powerful atomic bomb detonated an explosive force of 50 mega tonnes of TNT (trinitrotoluene).That is 2,500 times greater than the bomb on Nagasaki. ...
For the first time, a group of British scientists, from Hull University, seems to have managed to identify some neural changes occurring in the brain when we are subjected to hypnosis. This would show how hypnosis would have a "real" effect on the mind, not only due ...
The origin of astrology is thought to begin with the ancient Babylonians two centuries before the birth of Christ. The Zodiac was originally a natural agricultural calendar that dated the sowing of crops, harvesting, etc. by the rising and setting of the stars (especially Sirius), and the Pleiades ...
Oxygen was discovered by Carl Wilhelm Scheele in Sweden in 1771 and then by Joseph Priestley in 1774. The name for the element oxygen comes from Greek words that mean 'acid former'. Humans inhale more than 6 billion tones of oxygen each year. Oxygen is an essential factor for ...
Lodestones were what the first magnets were called. Magnets can be used to decrease the white cell blood count which increases in most diseases. Magnets are found in telephones, vacuum cleaners, washing machines, televisions and more. There are different types of magnets: permanent/hard, temporary/soft, electromagnets. Many scientists believe that birds are able to ...
Light is electromagnetic radiation, just like radiowaves, infrared radiation and x-rays. Even though light travels at 299,792,458 meters per second (in a vacuum), it takes it years to travel across the vast distances in space. It takes about 1.3 seconds for light or radio waves to reach us from the ...
For humans, hearing is normally limited to frequencies between about 12 Hz and 20,000 Hz (20 kHz). Sound with frequencies of less than 20 Hz is known as infrasound. If a sound has a frequency that exceeds 22,000 Hz it is called ultrasound. Sound is transmitted through gases, plasma, and liquids ...
The word "parachute" comes "para", meaning "against" or "counter" in Ancient Greek, and "chute", the French word for "fall" DaVinci sketched the design for the first parachute in 1485. The first user of a man-made parachute was not a man or a woman, but a dog. The inventor of the parachute, a ...