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Wind

The Wind Tree turbine is designed to generate power from low-speed winds

Generally speaking, the peculiar appearance of wind turbines coupled with the fact they perform better when up high and out in the open sees them banished to uninhabited countryside, or even out to sea. But a French entrepreneur believes that sculpting them in the form of an artificial tree could lead to wider adoption in urban centers, making use of low winds that circulate around buildings and streets.  Read More

The Tornado Shield in its rolled-up portable state, ready for action

When a tornado's heading your way, the best thing you can do is to go your basement or better yet, to a purpose-built storm shelter. The problem is, not everyone has access to either. With that in mind, Missouri-based entrepreneur Steve Anderson created the Tuuli Armor Tornado Shield. Essentially, it's a big bag that you get inside of.  Read More

The Skywatch Windoo measures wind and other weather

The Skywatch Windoo series of anemometers from Swiss company JDC Electronic SA pack wind- and weather-tracking power into your smartphone by way of a sleek, plug-in unit that's small enough to clip on to your keychain.  Read More

A study conducted by Dr Rongjia Tao from Temple University suggests that 1,000 ft (300 m) ...

The Great Wall of China was primarily built to keep out nomadic tribes, but a new study suggests constructing great walls in the American Midwest could keep out a different kind of threat – tornadoes. It might sound far-fetched, but a study conducted by Dr. Rongjia Tao from the Department of Physics at Philadelphia's Temple University suggests there is in fact some scientific merit to it. Strategically placed, 1,000 ft (300 m) high great walls could negate the forming of the destructive wind storms in Tornado Alley, and by extension, the destruction they leave in their wake.  Read More

Several DaSail paddlers catch some wind

Hitting the beach or lake on top of a paddleboard has been all the rage over the past few years. Some manufacturers and enthusiasts have set out to make it better, modifying the basic equipment with electric motors and multi-piece designs. The latest modification comes to the paddle, integrating a small sail into its handle to give boarders a little wind power on the water.  Read More

WindTracer will drop out of aircraft to evaluate atmospheric conditions for accurate air d...

For a besieged soldier or a disaster victim, a plane dropping supplies is the most welcome sight in the world – unless the drop ends up drifting off out of reach. To help make sure that airdrops end up where they belong, the US Air Force Research Laboratory has awarded a contract to Lockheed Martin to adapt its WindTracer wind measurement system for a Precision Air Drop system to help aircrews land supplies faster and on target.  Read More

The Buoyant Air Turbine, from Altaeros Energies

Winds are stronger and steadier at higher altitudes, that’s why the Buoyant Air Turbine (BAT) from Altaeros is pushing to be the highest wind turbine in history. Already tested to 500 feet off the ground in 45 mph winds, this helium-filled shell with a wind turbine in the middle is soon shooting for a world record 1,000 ft float. Packing down into a shipping container for transport, the BAT is being proposed as a quickly deployable tethered power source for remote areas and emergency zones.  Read More

Dr Reece Clothier with a prototype of a bio-inspired unmanned aircraft, under development ...

Most people who have cast their eyes skyward – or seen a nature documentary or two – will have seen lazily circling birds soaring to greater heights without flapping their wings. These soaring birds are catching a ride on rising air currents to save energy, and now researchers at RMIT University in Melbourne, Australia, are aiming to develop bio-inspired UAVs capable of doing the same thing.  Read More

Heat stored in the Pacific Ocean could be a ticking climate time bomb (Photo: Shutterstock...

Despite an overwhelming consensus among climate scientists that warming trends over the past century are most likely the result of human activities, some claim that a plateau in global surface air temperatures since 2001 is evidence to the contrary. However, a new study suggests the recent stabilization of air temperatures is a result of abnormally strong east to west trade winds, causing warmth to be stored temporarily beneath the western Pacific ocean.  Read More

Would partly black turbines be safer for birds? (Photo: Shutterstock)

Four turbines at the Smøla wind farm in Norway are to have one rotor blade painted black to see whether increasing the visual contrast of the turbine against its background might help to reduce bird strikes.  Read More

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