200-million-year-old insect color revealed by fossil scales

Can researchers determine the color of a 200-million-year-old insect? Scientists from China, Germany and the U.K. have new evidence that reveals the true color of fossil insects. The research was recently published in Science ...

New material for warm-white LEDs invented

Light emitting diodes, more commonly called LEDs, are known for their energy efficiency and durability, but the bluish, cold light of current white LEDs has precluded their widespread use for indoor lighting.

New computational technique advances color 3-D printing process

Working with researchers at Zhejiang University in China, Changxi Zheng, assistant professor of computer science at Columbia Engineering, has developed a technique that enables hydrographic printing, a widely used industrial ...

page 14 from 40