Lets See the, Top 20 things that changed the World........

      Top 20 things that changed the World....

Smart Phone 

A Smartphone is a mobile phone with an advanced mobile operating system which combines features of a personal computer operating system with other features useful for mobile or handheld use. Smartphones, which are usually pocket-sized, typically combine the features of a cell phone, such as the abilities to place and receive voice calls and create and receive text messages,with those of other popular digital mobile decices and personal digital device,such as an event calender, media player, video games, wifi, GPS and many more.  

Radio

Radio is the technology of using radio waves to carry information, such as sound, by systematically modulating some property of electromagnetic energy waves transmitted through space, such as thier amplitude, frequency, phase, or pulse width. When radio waves strikes an electrical conductor, the oscillating field induce an alternating current in the conductor. The information in the waves can be extracted and transformed back into its original form.

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Television

Television or TV is a Telecommunication medium  used for transmitting moving images in monochrome or in color or in 2-D, 3-D and sound.It can refers to a TV shows the medium for entertainment, education, news and adverting. TV becomes available in crude experiment forms in the late 1920s, but these did not sell to the public. After World War II, an improved form of black and white TV broadcasting becomes popular in the US and Britain.

Insulin

Insulin is a peptide hormone produced by beta cells of the pancreatic islets, and by the Brockmann body in some teleost fish. It has important efforts on the metabolism of carbohydrates, fats, and protein by promoting the absorption of, glucose from the blood into fat, liver and skeletal muscle cells. In these tissues the absorbed glucose is converted either glycogen or fats in the case of liver into both.    

Personal Computer

A Personal Computer (PC) is a general purpose computer whose size, capabilities, and price make it feasible for industrial use. PCs are intended to be operated directly by an end user with only a general knowledge of computer, rather than by a computer expert or technician. The computer time sharing models that were typically used large, more expensive minicomputer and mainframe system, to enable them be used by many people at the same time, are not used with PCs.  

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Air Conditioning

Air Conditioning (AC) is the process of altering the condition of air by removing the heat and humidity to achieve a more comfortable interior environments, typically with the aim of distributing the conditional air to an occupied space such as a building or a vehicle to improve thermal comfort and indoor air quality. In common use, an air conditioner is a device that remove heat from the air inside a building or a vehicle.  

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Rotary Dial

A Rotary Dial is a component of a telephone or switchboard that implements a signaling technology in telecommunication knows as pulese dialing. It is used when initiating a telephone call to transmit the destination telephone number to a telephone exchange. On the Rotary dial, the digits are arranged in a circular layout so that a finger wheel may be rotated with one finger from the position of each digit to a fixed stop postion, implemented by the finger stop, which is a mechanical barrier to prevent further rotation. 

 

Photograph

A Photograph is an image created by light falling on a light sescetive surface, usually photograpic film, electronic median such as a CCD or CMOS ship. Most photographs are created using a camera, which uses a lens to focus the screen,s  visible wavelenght of light into a reproduction of what the human eye would see. The process and practice of creating photographs is called photography.

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Alarm Clock

An Alarm Clock is a clock that is designed to make a sound, or some other signal at a specific time. The pimary function of these clocks is to awaken peoples from there night's sleep or short naps, they are sometimes used for other reminders as well. Most use sound, some have senses to identify when a person is in a light stage of sleep, in oder to avoid walking someone who is deeply asleep, which causes tiredness, even if the person has had adequate sleep.

Light Bulb

An Light Bulb or Incandescent Light Bulb is an electric light with a wire filament heated to a high temperature, by passing electric current current through it, until it glows with visible light. The hot filament is protected from oxidation with a glass or quartz bulb that is filled with inert gas or evaporation is prevented by a chemical process that redeposit metal vapor onto the filament, extending its life.   

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