We commonly mistake and are living in a concept that NASA works only on space programs and has no links on the regular basis of life. In fact the technology and the new inventions made in the last half century seem to be the greatest contribution of NASA to the mankind. Further, the innovations made on the space programs are adopted by us in the day to day life without affiliating them to the space. Thanks for the contribution of the super minds of NASA Created Technologies.
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Smoke detectors are those that sense the smoke and alert by producing a beeping or a loud noise. These are very helpful in both residential and commercial areas which sense the chances of catching fire. They even differentiate the smoke from fires and the harmful gases which is a life saver and equipped in every house today.