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Lockheed Martin’s HALE-D airship takes to the air

With the use of airships for passenger transport decreasing in the early 20th century as their capabilities were eclipsed by those of airplanes - …

Solar-powered UAV could fly in the upper atmosphere for 5 years at a time

There are actually two models of the Solara in the works. The Solara 50 will have a 50-meter (164-foot) wingspan, a length of 15.5 meters (54 ft), …

Make Your Own Remote-Control Spy Blimp

Float on!<p>I'm a materials-science engineer at an agency that allocates funding to research projects. It's theoretical work, so in my spare time I like to do practical, hands-on things. I've been building R/C models for 33 years and have always preferred uncommon vehicles--amphibious cars, …

Ultrasonic anemometer for an absurdly accurate weather station

With his meteorological interests, [Carl] builds weather stations. Temperature and humidity sensors are a dime a dozen, but with his DIY ingenuity, …

A Comparison of Hacker Friendly SDRs

In the market for a software defined radio? [Taylor Killian] wrote a comprehensive comparison of several models that are within the price range of …

Bluetooth Low Energy weather lamp

This is a well-executed proof of concept which [Aaron Jeromin] threw together in a couple of hours. This lamp hosts a Bluetooth Low Energy weather …

Primer on Bluetooth Low Energy

We’re sure that, like us, you’ve heard at least something about Bluetooth Low Energy (BLE). Blutooth 4.0 is another name for BLE and it’s already …