愛迪生擁有1,093件不同發明品的專利，其中許多都是傑出的發明並為我們的日常生活造成強大的影響，如：電燈泡、留聲機及電影攝影機。然而，不是每件發明品都很成功，愛迪生也有過一些失敗的發明品。

愛迪生對某一個概念很感興趣，但卻從來沒有成功過，就是使用水泥來蓋東西。1899年時，他組成了愛迪生波特蘭水泥公司 (Edison Portland Cement Co.) 並製造各式各樣的物品，如：櫥櫃(用來放置留聲機)、鋼琴及房子。但不幸的是，當時的混凝土太昂貴了，所以這個構想一直無法被他人接受。然而水泥並不是完全失敗的作品，他的公司受雇負責興建位於布隆克斯區 (Bronx) 的洋基球場 (Yankee Stadium)。您猜愛迪生還試著創造那些東西？


Edison had 1,093 patents for different inventions. Many of them, like the light bulb, the phonograph, and the motion picture camera, were brilliant creations that have a huge influence on our everyday life. However, not everything he created was a success; he also had a few failures.

One concept that never took off was Edison's interest in using cement to build things. He formed the Edison Portland Cement Co. in 1899, and made everything from cabinets (for phonographs) to pianos and houses. Unfortunately, at the time, concrete was too expensive and the idea was never accepted. Cement wasn't a total failure, though. His company was hired to build Yankee Stadium in the Bronx. What else do you think Edison tried to create?

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