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.
Lean beef is very high in protein, and also tastes delicious. It is loaded with highly bioavailable iron, vitamin B12 and numerous other nutrients. Protein content: 53% of calories. One 3 ounce (85 g) serving of cooked beef with 10% fat contains 22 grams of protein, with 184 calories.