Sails make a comeback as shipping tries to go green
As the shipping industry faces pressure to cut climate-altering greenhouse gases, one answer is blowing in the wind.
Energy & Green Tech
Dec 6, 2018
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News tagged with rotors
Grant aims to reduce cost and expand use of wind turbines for generating electricity
A technology originally developed to increase lift in aircraft wings and simplify helicopter rotors may soon help reduce the cost of manufacturing and operating wind turbines used for generating electricity.
Energy & Green Tech
Jan 13, 2010
3
0
World's smallest four-wheel-drive is a billionth of a meter (Update)
(PhysOrg.com) -- Reduced to the max: the emission-free, noiseless 4-wheel drive car, jointly developed by Empa researchers and their Dutch colleagues, represents lightweight construction at its most extreme. The nano car ...
Nanophysics
Nov 9, 2011
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0
Lightweight rotor blades made from plastic foams for offshore wind turbines
Offshore wind turbines are becoming ever larger, and the transportation, installation, disassembly and disposal of their gigantic rotor blades are presenting operators with new challenges. Fraunhofer researchers have partnered ...
Energy & Green Tech
Oct 4, 2016
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1
Lifting mechanism for mounting huge rotor blades
Siemens has created a special mechanism for mounting its 75-meter-long rotor blades for offshore wind farms. The lifting system makes assembly work safer and lets construction take place at higher wind speeds than was previously ...
Engineering
Sep 25, 2014
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1
Vela Pulsar
(Phys.org)—This movie from NASA's Chandra X-ray Observatory shows a fast moving jet of particles produced by a rapidly rotating neutron star, and may provide new insight into the nature of some of the densest matter in ...
Astronomy
Jan 8, 2013
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Drone 'space ship' app to help robots on future missions
European Space Agency scientists have developed a smartphone app that turns a toy drone into a virtual spacecraft on a mission to dock with the International Space Station, and uses crowd-sourced data from its manoeuvres ...
Space Exploration
Apr 20, 2013
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0
Concave, umbrella-like metal complexes provide space for giant molecular rotors to operate in solid state
Solid materials are generally known to be rigid and unmoving, but scientists are turning this idea on its head by exploring ways to incorporate moving parts into solids. This can enable the development of exotic new materials ...
Analytical Chemistry
Sep 29, 2023
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NASA is continuing to build the Titan Dragonfly helicopter, with a focus on its rotors
Ingenuity, the helicopter assisting NASA's Mars Perseverance rover on its mission, has been a huge success. It gathered the achievement of the first controlled flight on another heavenly body, has performed spectacularly ...
Space Exploration
Jan 13, 2023
2
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Perfection: The enemy of evolution
Scientists are often trained to seek out the absolute best solution to a given problem. On a chalk board, this might look something like drawing a graph to find a function's minimum or maximum point. When designing a turbojet ...
Evolution
May 18, 2023
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