Lockheed Martin flies first production F-35 stealth fighter

The first production model of the Lockheed Martin F-35 Lightning II made its inaugural flight today in preparation for delivery to the U.S. Air Force this spring. The jet will head to Edwards Air Force Base, Calif., to support ...

Satellites approach the Shannon limit

(PhysOrg.com) -- Satellites are achieving unparalleled efficiency with a new protocol, DVB-S2. The performance of DVB-S2 satellite systems is very close to the theoretical maximum, defined by the Shannon Limit. That efficiency ...

Electricity from body heat

Making calls from a cell phone with no battery, using just the warmth of your hand? Perhaps that’s no more than a pipe dream right now. But new circuits are already making it possible to harness body heat for generating ...

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