Heat, Air and Light: Machines to serve humankind - PowerPoint Presentation

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Uploaded On 2016-05-07

Heat, Air and Light: Machines to serve humankind - PPT Presentation

Heat A Radiant and hot air systems 1 Benjamin Franklins stove 1744 a Uses fire to heat air directly b With a normal fire man is scorchd before while hes froze behind c Concern over the quality of American heating a terrible grievance to persons not accustomed to it ID: 309687

air pipe systems water pipe air water systems gas iron light fire steam heat early lighting war buildings conditioned

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