Tech Tour: An engine with no emissions?

Related: Innovation

1. Innovation
   1. Plant parts used to generate electricity
   2. Robot learns to recognize objects on its own
   3. Navy's X-47B drone makes first carrier-style landing
   4. Bug-eyed camera gets wide angle view - through 180 lenses
   5. Solar plane makes first stopover in US odyssey
2. Tech & science
   1. Cicada bugfest closes in on city-dwellers
   2. Xbox One vs. PlayStation 4 vs. Wii U: Can one console rule?
   3. Collapsed I-5 bridge gone from Google Maps — almost as quickly as it fell
   4. Communications satellite launched into space
   5. iOS 7 likely to be flat ... and black and white?
3. Related videos & slideshows
   1. 
      Video
      Celestial show won’t be back until 2015
   2. 
      Video
      Rare leatherback turtle surfaces in Japan
   3. 
      Video
      Stinky feet? Robotic pooch lets you know
   4. 
      Video
      ISS photo shows erupting volcano