The recent discovery of a phonautogram by Édouard-Léon Scott de Martinville may be the earliest recording of sound in the world, predating that of Thomas Edison by almost 20 years.
Scott is in many ways an unlikely hero of recorded sound. Born in Paris in 1817, he was a man of letters, not a scientist, who worked in the printing trade and as a librarian. He published a book on the history of shorthand, and evidently viewed sound recording as an extension of stenography. In a self-published memoir in 1878, he railed against Edison for "appropriating" his methods and misconstruing the purpose of recording technology. The goal, Scott argued, was not sound reproduction, but "writing speech, which is what the word phonograph means."
Here's an mp3 snippet of his 1860 recording.
Thunder! Nah, nah, nah, nah, nah, nah, nah, nah! Con Edison is cutting their last direct current line in NYC, ending 125 years of continuous service that started when Thomas Edison set up shop in 1882 and signaling the final triumph of alternating current in the AC/DC wars. (Lesson: Nikola Tesla always wins in the end.)
The last snip of Con Ed's direct current system will take place at 10 East 40th Street, near the Mid-Manhattan Library. That building, like the thousands of other direct current users that have been transitioned over the last several years, now has a converter installed on the premises that can take alternating electricity from the Con Ed power grid and adapt it on premises. Until now, Con Edison had been converting alternating to direct current for the customers who needed it -- old buildings on the Upper East Side and Upper West Side that used direct current for their elevators for example.
