Yogurt stands in for mayonnaise, and veggies such as celery, onions or bell peppers add a bit of crunch. One serving of egg salad made with two egg whites, 1/2 ounce of plain, fat-free yogurt and 1/4 stalk of celery has 60 calories, less than 1 gram of carbohydrates and 0.5 grams of fat.
The Amazing Inventions of Heron of Alexandria. Heron, also known as Heron of Alexandria, developed many machines and mechanical devices with practical uses, showing that it was possible to take theory and put it into practice. Some of his devices were: 1  A coin operated 'Holy Water Dispenser'. 2  A water organ. 3  The Aeolipile, a steam-powered device.
Another scroll, from the 17th century B. C., was discovered by Edwin Smith (1822â1906) which had records of medical surgery in Egypt, including chest surgery. This would certainly indicate that the person who discovered heart disease lived in ancient Egypt and may have even performed heart surgery. The scroll contains records of physical exams, prognosis, and treatment for various conditions. Hence, it is the early Egyptians who had discovered heart disease.