Imagine a fridge that can tweet. Or a 3D printer you can build yourself. Or a robotic personal trainer.
These are just a few of the futuristic gadgets that were on display at this year's International Consumer Electronics Show, the largest consumer tech expo in the world.
Some of the technology is available today, while other gadgets are still prototypes. All are unconventional products that are notable, each in their own way, and could change the way we learn, create, eat, work, and exercise. Check out the slideshow below, then see the rest of our CES 2011 coverage.