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.
Beef. A medium fat cut of steak has about 230 calories while a lean cut of steak contains about 160 calories, according to NovaFeel.com. A 3.5 oz serving of 75 percent lean ground beef has 274 calories, while 95 percent lean ground sirloin has about 170 calories.