Thomas A. Edison Papers. Electric Generator. In the fall of 1878, after experiments indicated that existing arc light generators were inefficient for incandescent lighting Edison and his chief assistants, Charles Batchelor and Francis Upton, investigated generator design and the principles of electromagnetism.
Stove/Oven Height. When it comes to height, there are some variations. Average heights for a stove/oven combo are either 37.25 inches or 47 inches, depending on the manufacturer. The most common height of 36 inches accommodate standard counter heights.
Both kinds are designed to be eye-level so that you can easily watch, and access, the food placed inside. They are a metal box, about 3 or 4 feet (about 1 metre) wide, and about 1 foot (30 cm) tall inside. There is generally no door on it at all. On the inside top of the oven will be mounted a long burner.