Breaking News
Iran Announces the Strait Is Fully Open, Oil Prices Plunge, Stocks Soar
Donald Trump Pulls the Trigger
Iran War: Sleepwalking into Starvation
Certificate of Need Laws: How Government Permission Slips Restrict Care and Raise Costs
Top Tech News
Researchers Turn Car Battery Acid and Plastic Waste into Clean Hydrogen and New Plastic
'Spin-flip' system pushes solar cell energy conversion efficiency past 100%
A Startup Has Been Quietly Pitching Cloned Human Bodies to Transfer Your Brain Into
DEYE 215kWh LiFePO4 + 125,000W Inverter + 200,000W MPPT = Run A Factory Offgrid!!
China's Unitree Unveils Robot With "Human-Like Physique" That Can Outrun Most People
This $200 Black Shaft Air Conditions Your Home For Free Forever -- Why Is It Banned in the U.S.?
Engineers have developed a material capable of self-repairing more than 1,000 times,...
They bypassed the eye entirely.
The Most Dangerous Race on Earth Isn't Nuclear - It's Quantum.
This Plasma Stove Cooks Hotter Than The Sun 
World's only Rotor Sail passenger ship goes into service
Now a passenger ship operated by the Viking Line has been treated to the Rotor Sail Solution and has set sail on wind-assisted trips between Finland and Sweden.
The M/S Viking Grace – which has 880 cabins and can accommodate 2,800 passengers and around 500 cars – went into service in 2013, when it was reported to be the first ship of its size to be fueled by Liquefied Natural Gas (LNG). Its hull was hydrodynamically-optimized for low fuel consumption and soundproofing technology was fitted to keep noise down. So it already boasted some noteworthy green credentials.
A single Rotor Sail cylinder measuring 24 meters (78 ft) tall and 4 meters (13 ft) in diameter has now been installed on the passenger vessel, which is described as a modern version of the Flettner rotor.