In relativity theory, Einstein introduced mass as a new type of energy to the mix. Beforehand, the mass of something in kilograms was just a measure of how much stuff was present and how resistant it was to being moved around.
Set the broiling pan in the oven once the broiler has warmed up. Make sure the sausage is positioned about seven to nine inches below the heat. Cook for 16 to 20 minutes total, turning the brat 90 degrees every four to five minutes so that it cooks evenly on both sides.
Add sliced onion to the mixture. The initial stages of cooking the onions in the beer will soften them and allow them to take on a slight bit of the flavor of the beer. Heat the oven to 350 F and place the casserole dish into the oven with the top removed. Allow the brats to cook for approximately 30 minutes. This should allow much of the beer to evaporate as it cooks. Remove the casserole dish from the oven and pour off any beer that has not evaporated. Leave about 1 cup of the liquid in the dish with the brats and onions.