importance of human communication

Importance of Radio Waves in Modern Communication - Radio waves are electromagnetic waves of wavelength 10 - 3 m and higher. Their frequency range is from a few kHz to nearly a few hundred MHz. The propagation of radio waves through the atmosphere is relevant in all modern forms..

Radio waves are electromagnetic waves of wavelength 10 - 3 m and higher. Their frequency range is from a few kHz to nearly a few hundred MH..

AIDS - AIDS is a disease that can prove to be fatal. The immune system of the body is affected. Acquired Immuno Deficiency Syndrome which is the medical expansion for AIDS was first detected in June 1981 in USA. The disease is caused by a retrovirus - HIV (human immuno deficiency virus). ..

Importance of Steoreochemistry - Stereochemistry, an important aspect of carbon compounds, is a feature that is widely prevalent in nature. The human body is structurally chiral with the heart lying to the left and the liver to the right. Many climbing plants show chir..

AIDS is a fatal disease in which the immune system of the body is affected. Acquired Immuno Deficiency Syndrome which is the medical expansion for AIDS was first detected in June 1981 in USA. The disease is caused by a retrovirus - HIV (human immuno deficiency virus..

) Low transmission losses, as low as 0.1 db/km. (iii) Immunity to electromagnetic interference, which is an inherent characteristic of an optical fiber viewed as a dielectric wave guide. (iv) Small size and weight, characterized by a diameter, which is no greater than that of a human hair..

. So, the signal power progressively decreases with increasing distance. The receiver operates on the output signal from the channel in preparation for delivery to the transducer at the destination. Receiver operations include amplification to compensate for transmission loss. These also include de..

Although population of some animals is also studied, the population of human beings is most extensively studied. Whenever the word population is used, it connotes the human population. Population is one of the most important subjects known for having large scale ..

Introduction - Although population of some animals is also studied, the population of human beings is most extensively studied. Whenever the word population is used, it connotes the human population. Population is one of the most important subjects known for having lar..

Some Important Forms of Alcohol - Absolute alcohol or anhydrous alcohol (100% alcohol) is prepared by adding a little benzene to the rectified spirit followed by distillation. Ordinary rectified spirit is called industrial alcohol. To ensure that industrial alcohol is not used for hu..