By dropping the sterile, fully developed flies, the USDA plans to prevent flesh-eating maggots from reaching the United ...

The screw conveyor has an extensive history. Archimedes (ca. 212 BC) invented the first screw conveyor, and his design is still used today for irrigation and grain transfer. Screw conveyors became ...

The U.S. government is preparing to breed billions of flies and drop them from airplanes over Mexico and even southern Texas.