Alexander Graham Bell 1 Washing machine- Inventor-James King Year-1851 Usefulness-Having a washing machine will make you forget about Laundromats. If you buy one, you will have enough freedom to wash clothes when you need to with comfort. Describe-A washing machine (laundry machine, clothes washer, or washer) is a machine designed to wash laundry, such as clothing, towels and sheets. The term is mostly applied only to machines that use water as the primary cleaning solution, as opposed to dry cleaning (which uses alternative cleaning fluids, and is performed by specialist businesses) or even ultrasonic cleaners. TELEPHONE- Inventor- Alexander Graham Bell Year- 1876 Usefulness-The main advantage of telephone interviewing is from the researcher point of view. The number of different people can be reached in a relatively short period of time. From the respondents standpoint it would eliminate any discomfort that some of them would feel less uncomfortable disclosing personal information over the phone than face to face. Describe-A telephone is a device that translates one’s speech into analog electrical signals, allowing them to engage in communication over extended distances.
The word telephone is Greek for “far away voice”. 3TELEVISION- Inventor-Philo Farnsworth Year-1939 Usefulness-The television play a very important part in educating the people regarding the corruption, prevailing in the social and political spheres. The people can be taught not to give or take bribes. They can also be advised to help the government in curbing black marketing, smuggling, hoarding etc. During the time of election the results of the successful candidates can also be announced through the television. Describe-It is one of the entertaining things for both adults and children.
It comes in different sizes. It uses electricity. It is a box with pictures. Every house has at least one. It invented around hundred years ago and since then people have been using this object. 4 FOUNTAIN PEN- Inventor-Lewis Waterman Year-1884 Usefulness-A lot of people see fountain pens as an archaic, problematic, sloppy means of composing, however this could not be further from the real truth. This post will check out a number of the misconceptions and benefits of using a nib-style pen as your main composing instrument.
Describe-A fountain pen is a nib pen that, unlike its predecessor the dip pen, contains an internal reservoir of water-based liquid ink. From the reservoir, the ink is drawn through a feed to the nib and then to the paper via a combination of gravity and capillary action. As a result, the typical fountain pen requires little or no pressure to write. 5 NEWSPAPER- Inventor-. Johann Gutenberg Year-1447 Usefullness-. I feel that newspaper gives us a lot of knowledge.. There are a lot of entertaining things like comics,crooswords, puzzles,etc.. You get the information about sports events, bussiness news,etc..
You get day to day information whats happening round the world. Describe-A newspaper is a regularly scheduled publication containing news of current events, informative articles, diverse features and advertising. It usually is printed on relatively inexpensive, low-grade paper such as newsprint. By 2007, there were 6580 daily newspapers in the world selling 395 million copies a day. The worldwide recession of 2008, combined with the rapid growth of web-based alternatives, caused a serious decline in advertising and circulation, as many papers closed or sharply retrenched operations.