Whale-inspired ocean turbine blades

Interest in developing alternative energy sources is driving the consideration of a promising technology that uses underwater turbines to convert ocean tidal flow energy into electricity.

Enhancing the efficiency of wind turbines

A milestone in the history of renewable energy occurred in the year 2008 when more new wind-turbine power generation capacity was added in the U.S. than new coal-fired power generation. The costs of producing power with wind ...

Jump rope aerodynamics

Jump ropes are used by kids for fun and by athletes for training. But what about the underlying physics? How do jump ropes work? Can important engineering principles be studied?

Showcase UAV demonstrates 'Flapless Flight'

(PhysOrg.com) -- A novel unmanned air vehicle (UAV) which showcases a wide range of new technologies has successfully demonstrated 'flapless flight' in the UK.

Flying fish glide as well as birds

How well do flying fish fly? This is the question that puzzled Haecheon Choi from Seoul National University, Korea. Measuring aerodynamic forces on dried darkedged-wing flying fish in a wind tunnel, Choi and Hyungmin Park ...

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