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.
Calories In Slow Cooker Beef Chuck Roast with onion gravy Calories: 193, Fat: 5g, Carbs: 7g, Protein: 27g, Fiber: 1g. Calories Burned For Biking/Cycling: 20-22 km/h (3 minutes per km - 2.72 minutes per km)