Hidden Tap faucet flows from left to right as you go from dirty to clean
![](https://s.yimg.com/ny/api/res/1.2/AQuof7WUZ12cksHjgUqbMA--/YXBwaWQ9aGlnaGxhbmRlcjt3PTk2MDtoPTYzNw--/https://s.yimg.com/uu/api/res/1.2/UEhZ7crKw80wOfo6cJp8NA--~B/aD0zOTg7dz02MDA7YXBwaWQ9eXRhY2h5b24-/https://www.blogcdn.com/www.engadget.com/media/2008/07/hidden_tap.jpg)
Here's one of those inventions that just makes sense. The Hidden Tap by Jelmer Moorman uses a sensor to follow your hands and dispense water. As you move your hands from left to right under the faucet, water goes from hot to cold just like a regular tap. We have no word on availability, but Hidden Tap is part of the Kunst Zonder Kapsones venture company started by Fernando H. Arias, so we have a feeling that given enough interest, this thing will be showing up in high-end contractors' bags of tricks at some point. Hit the continue link to see the thing in action, but be warned -- it's a .wmv file.
[Thanks, Fernando]