Eco Bath System Designer Jang Woo-Seok, a student at Seoul National University, created the Eco Bath System which reuses up to 50% of the total water consumption. The Eco Bath System accumulates sink water in order to be reused to flush the toilet.
Now here's a fine piece of optical trickery. Blue Pine Studio's 3D light sculpture projects its beams as an intricate geometric nest of LEDs that can be set to 16 different colors and 4 different light-changing modes. Practical as an illuminator, de