Richard Spikes was an African-American inventor created with  inventing the turn signal and the beer keg tap. Not a lot is known  about his personal life except that he was â¦ declared legally blind  in 1962, the same year he passed away. Answered.
There are 56 calories in 1 thin slice of Roast Beef. Calorie breakdown: 60% fat, 0% carbs, 40% protein.
One ounce of lean, cooked beef contains 49 calories, meaning that a 12-ounce steak contains approximately 594 calories. This may vary if the steak contains fat or a... One ounce of lean, cooked beef contains 49 calories, meaning that a 12-ounce steak contains approximately 594 calories. This may vary if the steak contains fat or a bone. The nutritional breakdown per ounce of lean beef includes 18 calories from fat and 31 calories from protein. It's important to note that the recommended serving size for beef is between 3 and 4 ounces, meaning that a steak can represent several times the recommended amount of beef for a given meal.