We usually don't encourage multitasking while running, but a treadmill that lets you wash clothes while you work out might change that.
Si Hyeing Ryu, a student designer in South Korea, created the Wheel treadmill design concept for the Electrolux Design Lab 2014 design competition. The washing machine–treadmill hybrid would use human kinetic power to do your laundry while you run.
"To clean, or not to clean, that is the question," said Hyeing Ryu in his design submission. "This is an eco-friendly and efficient experience. It saves time by doing the workout and washing clothes."
The machine is composed of a circular treadmill track that contains multiple compartments serving as washing machine tubs. Inside, "washing balls" help get clothes cleaner while reducing the amount of water used. A person's steps would spin the wash cycle, and miles logged would be stored as battery power for days when your legs need a rest.
That age-old excuse for having no time to work out because of all the chores on your to-do list? Go hang it on the clothesline.