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.
Electric roaster ovens range from a small 5 quart to a large 22 quart size. Some come with buffet pans so you can use the roaster as a buffet server. You will find stainless steel models to enamel and even porcelain models. I love my stainless steel roaster oven and find it cleans up so nicely.