Silencing noisy ship propellers

Finnish engineering firm, Wärtsilä, has successfully collaborated with marine engineering researchers at City University London to identify the specific design parameters creating the risk of 'singing propellers'.

Greener ship propellers

A Norwegian invention is reducing by a third the energy that foundries need to manufacture ship propeller blades.

Avengers-style Helicarrier is still pie in the sky

(Phys.org) —One of the most impressive features of last year's blockbuster smash The Avengers was a gigantic flying aircraft carrier powered by four immense propellers.

Low speed wind tunnel gets new motor

A new motor has been installed in the Oran W. Nicks Low Speed Wind Tunnel, replacing a 900RPM, 1,000-horsepower synchronous motor from Allis-Chalmers that was surplused by the U.S. Navy back in World War II.

On the Crest of Wave Energy

(PhysOrg.com) -- The ocean is a potentially vast source of electric power, yet as engineers test new technologies for capturing it, the devices are plagued by battering storms, limited efficiency, and the need to be tethered ...