In 1908 Edison increased the playing time of the cylinders. From 1888-1902 the speed of the records varied so the record could fit the song, anywhere from 90-144rpm. After 1902 the speed was standardized at 160rpm. In 1908 Edison cylinders...
In 1908 Edison increased the playing time of the cylinders. From 1888-1902 the speed of the records varied so the record could fit the song, anywhere from 90-144rpm. After 1902 the speed was standardized at 160rpm. In 1908 Edison cylinders...
In 1908 Edison increased the playing time of the cylinders. From 1888-1902 the speed of the records varied so the record could fit the song, anywhere from 90-144rpm. After 1902 the speed was standardized at 160rpm. In 1908 Edison cylinders...
Harper's Weekly cover depicting a dying Grant consulting with four doctors: Dr. Douglas, Dr. Shrady, Dr. Sands, and Dr. Barker. Grant is in a chair wrapped in a blanket and propped up by a pillow.