The project is to turn a dying shopping mall and its sprawling parking lot into the world's largest green roof - creating a green, walkable neighbourhood filled with gardens, apartments and retail spaces.
Scientists have created what they are calling a "ultrathin invisibility skin cloak for visible light." The cloak has been shown to cover an object and - by manipulating certain wavelengths of light - render it invisible.
The animal was a variety of hadrosaur, a duck-billed dinosaur that roamed in herds. Northern Alaska likely was once covered by forest in a warmer climate. The dinosaur lived in darkness for months and probably experienced snow, researchers said.
A 13-year-old California high school freshman invented a groundbreaking low-cost Braille printer-embosser, this small portable machine looks a lot like any other printer - only it spits out strings of raised bumps instead of flat text on a page.