Environment means the surroundings. Land, water, air, plants, animals, solid wastes and other things that are surrounding us constitute our environment. Man and environment are closely intertwined with each other, to maintain a balance or equilibrium in nature.
Different groups of people working in different areas express it in various ways. When physical scientists talk about environment they generally refer to the physical environment that comprises the three inter locking systems the Atmosphere, the Hydrosphere and the Lithosphere.
Biologists often refer to biological environment consisting of all living organisms of the Biosphere. Similarly social scientists refer to the social, cultural, economic and organizational environment.
Hence environment may be defined as "the sum of all social, cultural, economical, biological, physical and chemical factors surrounding the 'man' to give ...
A new phase of matter has been discovered seventy years after Albert Einstein predicted it's existence. In this new state of matter, atoms do not move around like they would in an ordinary gas condensate. The atoms move in lock step with one another and have identical quantum properties. This will make it easier for physicists to research the my...
In 1945, the bomb explosion on Hiroshima and Nagasaki was one of the most devastating in all history. The bomb that struck them without notice produced devastative effects. Bombs today are getting larger and stronger. The technology of weapons nowadays has lead to war, and war has caused catastrophes to families as well as friends. Today, the Unite...
Super conductivity General properties Observations regarding Applications 'O Super conductor are the material having almost zero resistivity and behave as diamagnetic below the super conducting transition temperature.'O Super conductors are PERFECT conductors. 'O Virtually zero electrical resistance.'O Perfect diamagnetic property.'O Critic...
In , particles ionize gas atoms. The tube contains a gas at low pressure. At one end of the tube is a very thin 'window' through which charged particles or gamma rays pass. Inside the tube is a copper cylinder with a negative charge. A rigid wire with a positive charge runs down the center of this cylinder. The voltage across the wire and cyli...
The human body is divided into many different parts called organs. All of the parts are controlled by an organ called the brain, which is located in the head. The brain weighs about 2.75 pounds, and has a whitish-pink appearance. The brain is made up of many cells, and is the control centre of the body. The brain flashes messages out to all the...