1 Puree tomatoes, cucumbers, bell peppers and scallions together in a food processor and season with herbs and spices of your choice to make the refreshing cold soup, gazpacho. 2  Add tomato slices to sandwiches and salads. 3  To keep things colorful, use yellow, green and purple tomatoes in addition to red ones.
After 500 BC, Hippocrates discovered the healing powers of water. He invented the practice of sieving water, and obtained the first bag filter, which was called the âHippocratic sleeveâ. The main purpose of the bag was to trap sediments that caused bad tastes or odours. In 300-200 BC, Rome built its first aqueducts.
Leonardo da Vinci at the beginning of the 16th century was credited with inventing the first hygrometer that used a ball of wool to provide this indication of humidity level. First Mechanical Air Cooler. Da Vinci was likely the first to use a mechanical air cooler. This air cooler consisted of a hollow water wheel with an air passage constructed to guide the air from the water wheel to his patron's wife's boudoir. The air was cooled by the splashing and evaporation of water during operation of the water wheel.