One concept that never took off was Edison's interest in using cement to build t

[v0031]

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 does the red mean? Does it mean that he failded to use cement to build something?

[Smid]

One idea that did not gain popularity...

[MODU]

Edison thought that cement was going to be used for many applications, not just for roads, dams, walls, and so on.  He did build some houses made out of cement, but at the time, they weren't popular.  His idea of using cement to build "every day" objects like furniture failed to gain any interest, in part because they were too heavy to move, and also because they would crack.

Hope that clears that line up for you.

[v0031]

Thanks, that's very good explanation.

[tik 🪀✨]

Edison was also a massive douche by the way.