Berliner Gramophone formulations remained the standard disc record material until the first vinyl records – initially made only for radio use and other special applications – were introduced in the 1930s. Beginning in 1896, Berliner's gramophones were made by Philadelphia-based machinist Eldridge Johnson, who added a spring motor to drive the previously hand-rotated turntable. Berliner also opened an office in New York City, staffed by Frank Seaman and O. D. LaDow and organized as the National Gramophone Company. Master recordings were made onto zinc plates, which were then electroplated and a negative-image "mother" made from them to stamp discs. A major reversal
What Are They Doing in Heaven? What Are They Doing in Heaven? "What Are They Doing in Heaven?" is a Christian hymn written in 1901 by American Methodist minister Charles Albert Tindley. , it has become popular enough to have been included in 16 hymnals. The song has sometimes been recorded under the titles "What Are They Doing?" and "What Are They Doing in Heaven Today?". The question mark is often omitted. The song may also be known by its first line, "I am thinking of friends whom I used to know". The song consists of four verses and a refrain, each four lines long. In