Tracking gunfire with a smartphone

(Phys.org) —You are walking down the street with a friend. A shot is fired. The two of you duck behind the nearest cover and you pull out your smartphone. A map of the neighborhood pops up on its screen with a large red ...

NTT Docomo's new smartphone features wireless charger

(PhysOrg.com) -- Charging your cell phone can be a hassle, mostly because you have to find your cord, and if you are anything like most people, you don't have just one charging cord lying around your house. Wireless charging ...

Shaping the future of light through reconfigurable metasurfaces

The technological advancement of optical lenses has long been a significant marker of human scientific achievement. Eyeglasses, telescopes, cameras, and microscopes have all literally and figuratively allowed us to see the ...

Cost-saving computer chips get smaller than ever

Not so long ago, a computer filled a whole room and radio receivers were as big as washing machines. In recent decades, electronic devices have shrunk considerably in size and this trend is expected to continue, leading to ...

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