In storms or other turbulence, pilots need to know how the plane is orientated and the angle at which the plane is tilted toward Earth’s surface. If the plane’s nose is tilted downward at a 45-degree ...

Scientists have placed four PV panels in a 21-meter wind tunnel and run different tests regarding tilt angles, mounting height, spacing, and incoming flow direction. They found that when the spacing ...

Imagine you are a young Bar-tailed Godwit, a large, leggy shorebird with a long, probing bill hatched on the tundra of Alaska. As the days become shorter and the icy winter looms, you feel the urge to ...