Circulatory System

Circulatory System The circulatory system can be compared to a system of interconnected, one-way roads that range from superhighways to back alleys. Like a network of roads, the job of the circulatory system is to allow the transport of materials from one place to another. As described in Figure below, the materials carried by the … Read more

Respiratory System

Respiratory System Introduction Red blood cells are like trucks that transport cargo on a highway system. Their cargo is oxygen, and the highways are blood vessels. Where do red blood cells pick up their cargo of oxygen? The answer is the lungs. The lungs are organs of the respiratory system. The respiratory system is the … Read more

Coordination & Nervous system of human being

Nervous system of human being The nervous system is a complex collection of nerves and specialized cells known as neurons that transmit signals between different parts of the body. It is essentially the body’s electrical wiring. Structurally, the nervous system has two components: the central nervous system and the peripheral nervous system. According to the … Read more

Intoxicants

Intoxicants The intoxicants used in society  might be taken as the following: alcohol, bhang, ganja, tobacco and opium, coca etc. Alcohol as an intoxicant Alcohol, also known by its chemical name ethanol, is a psychoactive substance that is the active ingredient in drinks such as beer, wine, and distilled spirits (hard liquor). It is one … Read more

Indian telecom industry with brief history

Indian telecom industry with brief history India’s telecommunication network is the second largest in the world by number of telephone users (both fixed and mobile phone) with 1.153 billion subscribers as on 31 May 2018. It has one of the lowest call tariffs in the world enabled by mega telecom operators and hyper-competition among them. … Read more

Various chemical and biological weapons

Various chemical and biological weapons chemical weapons A chemical weapon is any toxic chemical that can cause death, injury, incapacitation, and sensory irritation, deployed via a delivery system, such as an artillery shell, rocket, or ballistic missile. Chemical weapons are considered weapons of mass destruction and their use in armed conflict is a violation of … Read more

Telecommunication :- Basic concept, Telecom application for socio-economic development of masses

Telecommunication Telecommunications, also known as telecom, is the exchange of information over significant distances by electronic means and refers to all types of voice, data and video transmission. This is a broad term that includes a wide range of information transmitting technologies such as telephones (wired and wireless), microwave communications, fiber optics, satellites, radio and … Read more

electro chemistry

Electrochemistry Electrochemistry is the study of production of electricity from energy released during spontaneous reactions and the use of electrical energy to bring about non-spontaneous chemical transformations. Electrochemistry is the study of chemical processes that cause electrons to move. This movement of electrons is called electricity, which can be generated by movements of electrons from … Read more

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