I'll believe it when I see it, but the concept is interesting nonetheless. Created by researchers at Leeds University, the trick behind only using one cup of water to wash an entire load of laundry lies in chips...about 44 pounds of plastic chips.
The water and detergent are what dissolves the dirt from your clothes, while the plastic chips absorb the dirt. At the end of the wash the plastic chips are separated from your clothes and then reused for the next load of laundry. Because the clothes are virtually dry at the end of the cycle, you minimize the use of the dryer as well.