This week in Tech Reads: bandwidth on the battlefield, making a chart-topping app without ever learning to code, how glowing screens are messing with our sleep, and much more. Don't forget to change your clocks!

  • Brendan Koerner shows how the next development in warfare will be controlling and commandeering bandwidth for communications and more. [Wired]
  • Dale Dougherty takes a perplexed look back at his experience as a spectator at the Sochi Olympics. [Medium]
  • Richard Van Noorden talks about how chemists are working to develop cheaper, higher capacity rechargeable batteries. [Nature]
  • Ryan Rigney makes a pretty convincing, and hilarious, Flappy Bird knockoff using nothing but off-the-shelf code purchased for under $100, no high-level coding experience required. [Wired]
  • Jason Del Rey talks to the duo who ended up making the best-rated mattress on Amazon, without really having planned to do so. [Re/code]
  • Daniela Hernandez looks at how wearable fitness trackers and other devices could change the way doctors treat and monitor their patients. [Wired]
  • Dirk Hanson talks about how our glowing gadgets feed our addiciton to light—and how they might help us solve it. [Nautilus]
  • Adam Minter looks at the strange and hazardous world of electronic device recycling in North Korea. [BloombergView]
  • Dougald Hine examines whether the always-on information portals we carry in our pockets are actually making us smarter. [Aeon]

Image: Dave LeMote wipes down a post clock at Electric Time Company, Inc. in Medfield, Mass., Friday, March 7, 2014. Most Americans will set their clocks 60 minutes forward before heading to bed Saturday night, but daylight saving time officially starts Sunday at 2 a.m. local time (0700GMT). (AP Photo/Elise Amendola)

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