Sugar is considered critical for achieving a smooth and silky consistency in gelato. But new technology is aiming to achieve the same results with less (or no) sugar.
Irina Marwan/Getty Images
Dishwashers have come a long way since this 1921 model, which was designed mainly to help minimize the drudgery of housework. But today's sleek models are also designed with water conservation in mind.
Bettmann/Bettmann Archive/Getty Images