By Cat DiStasio
What will the home of the future look like? Designers are running wild envisioning appliances that could become reality in 10, 20 or 50 years. Some are highly efficient and use less (or zero) electricity while doing whatever it is we rely on them to do. Others open up exciting new possibilities -- what if you could print your own clothes, cook with sunlight and cool food with bio gel? Although these next-gen appliances might not hold a candle to Back to the Future's pizza rehydrator, we love them all the same.