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.
According to the USDAâs National Nutrient Database for Standard Reference, a 2-ounce serving of roast beef cold cuts has approximately 66 calories. Calories are used by the body for energy and are specific to each individual based on gender, age and activity level. A 2-ounce serving of roast beef cold cuts has 10 grams of protein. Protein is an essential nutrient used to develop and maintain tissue, protect the body from infections and promote growth and healing.