The central heating furnace design that Alice H. Parker patented in December 1919 made use of natural gas for the first time to keep homes warm and toasty. Inspiring her innovation: the limited efficiency of fireplaces (along with the smoke and ash they produce) during the cold winters at he...
WHO INVENTED IT? WHEN? CHINESE INVENTIONSAn Introductory Activity INTRODUCTION A common stereotype is that the Chinese traditionally lack scientific and technological ability, although, somehow, they stumbled upon papermaking, printing, gunpowder, and the mariner's compass. Modern Chinese, themselves, ...
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The central heating furnace design that Alice H. Parker patented in December 1919 made use of natural gas for the first time to keep homes warm and toasty. Inspiring her innovation: the limited efficiency of fireplaces (along with the smoke and ash they produce) during the cold winters at he...