-
Giant fans of wind energy
cabinet. The rotor consists of a hub, usually with three blades attached. When there's light wind, many turbines adjust the blades to a 45 angle, the position in which the turbine can draw as much energy as possible. The blades begin to turn very slowly, without generating energy. This is known...
-
Urban Aeronautics is testing its Mule, a UAV that can hover and cruise at up to 100 mph
, light composite materials, flyby- wire and advanced autopilot control. The turboshaft engine being evaluated on the prototype is a Turbomeca Arriel 1D1 that delivers 750 shp. This power is sent to two lift fans, each with a 1.8-m propeller, and to two smaller thrust fans through several gearboxes...
-
Big changes at the Brickyard
amenities. Indy racing even has a new name — Indy Racing Northern Light Series. This year's big event will also see what many hope are the seeds of reunifi-cation between two rival open-wheel-racing groups. Spectators will hear changes, too, as a new crankshaft provides a higher, more exotic pitch. Indy's...
-
South Texas Electric Co-Op Power Plant
was clear. The Labyrinth is a light-weight aluminum constructed ventilator that can be applied to newly constructed facilities or retrofitted to existing structures. Moffitt has an entire line of natural ventilation products that help saves electrical, operational and maintenance costs all while providing...
-
Toys that teach
includes all the materials needed for 22 projects. They can build solar, supercapacitor, and electric cars; spin a flywheel generator; build a battery to light an LED; and perform kinetic chain reactions. In addition, the kit teaches children about choices they face in the future: Where energy...
-
Keeping cool with carbon
in oxidized PAN fiber. Good heat resistance, light weight, and electrical nonconductivity make this material a good candidate for the application. MercedesBenz turbodiesel truck engine compartment showing the hood liner using nonwoven OPF. Today's high-performance engines generate more heat than current...
-
Integrated Drive Electronics for Brushless DC Motors
for an angular position sensing system can include electro-optical switches (optical. encoders), most commonly a combination of light emitting diode (LED) and a phototransistor. A shutter. mechanism controls light transmission between the transistor and the sensor. The sensor voltages can. be processed...
-
No time for rest
Teams racing at Indy are still getting comfortable with new rules mandated last year. Sam Hornish Jr., driving for the Pennzoil Panther Racing team, scored his first victory at the Pennzoil Copper World Indy 200 in Phoenix, only his ninth Indy Racing Northern Light Series race. With this win, he...
-
Keeping cool with carbon
in oxidized PAN fiber. Good heat resistance, light weight, and electrical nonconductivity make this material a good candidate for the application. Mercedes-Benz turbodiesel truck engine compartment showing the hood liner using nonwoven OPF. Today's high-performance engines generate more heat than current...
-
No Such Thing as Too Quiet
cleaner that needs an indicator light to signal it's operating. Consumers are demanding this level of noise reduction, and OEMs are scrambling to provide it. Quiet operation effectively gives products a higher perceived value. But sound insulation can also add weight and assembly cost. A deeper...