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.
the normal formula for baking is to use twice the number of briquettes as the diameter of the oven with 3 4 of them on the lid for a 12 inch oven you would use 24 briquettes with 18 on top and 6 underneath for frying use the same number of coals as the diameter of the oven with all of them underneath