Answers

2015-03-11T21:15:45+05:30
As this help us a lot and if we are blind there are some systems to gives us eyes back.
if ur deaf they have ear machines and all 
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2015-03-11T21:40:05+05:30
Yea the technical gadgets have improved.....Technical gadgets beneficial for the human being is largely SCHOOLS for study education,medical fields and also have lots of space to serve Gadgets..........
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