International shipping runs largely on highly polluting “bunker” fuel, which is why the industry is under increased pressure to play its part in tackling climate change by reducing emissions. Drawing on a type of “spinning sail” invented almost a century ago, ships could reduce their fuel emissions by 10 percent. The spinning, or rotor sail, helps propel the ship because when wind passes the sail, the air flow accelerates on one side and decelerates on the opposite side, creating a thrust force perpendicular to wind direction. The unusual sails are being trialled by Maersk, one of the world’s biggest shipping companies.
‘Spinning sail’ could make cargo ships a whole lot greener
More of Today's Solutions
How one small device is solving the apartment solar access problem
BY THE OPTIMIST DAILY EDITORIAL TEAM An Australian device that splits rooftop solar power across an entire apartment building just won the country's top ...
Read MoreHungary repeals anti-LGBTQ law, unlocking billions in EU funds
BY THE OPTIMIST DAILY EDITORIAL TEAM Hungary's parliament voted last Tuesday to repeal the 2021 Child Protection Law that banned the portrayal or promotion ...
Read More5 ways to be a better listener in your relationship
In your relationship, you and your partner each come in with your own unique set of values, beliefs, and points of view. You both ...
Read MoreEasy steps for firm and smooth-looking legs
Summer is here and it is time to shed our outerwear layers! If you are looking to make your legs appear and feel firmer ...
Read More
