Willis Carriers: As soon as the summer comes, the use of air conditioners increases and in metro cities like Delhi, you will usually see a small air conditioner in every house. Be it home or office or school, air conditioners are installed everywhere. Air conditioners ranging from Rs 15,000 to Rs 1 lakh are available in the market. But do you know how the air conditioner was started and who made the world’s first air conditioner? Probably very few people will know about this. Today in this article we are…
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