E-2's main propulsion system consists of two DC motors directly driving contra-rotating propellers. An underwater vehicle with a single propeller is subject to undesirable torque forces, especially if ...

The E. Barrett Prettyman U.S. Courthouse, home of the U.S. Court of Appeals for the District of Columbia Circuit. Photo: Diego M. Radzinschi/ALM Commodities exchange KalshiEx may resume offering ...

This Idea For Design shows how a gyrator circuit can be used to perform certain ac tests on units under test that require a dc-current feed. Designers have long used the gyrator circuit to create a ...