IIIF provides researchers rich metadata and media viewing options for comparison of works across cultural heritage collections. Visit the IIIF page to learn more. Miscellaneous parts removed from the ...

Adding a flap to a Flettner rotor can lead to improved performance and significant reductions in both emissions and fuel consumption, according to a recent assessment. The study, conducted by ...

The new streamlined vessels will feature six Flettner rotors, which are large, vertical, rotating cylinders that act like airfoils and use the wind to generate thrust to drive the craft. In addition, ...

The Energy Technologies Institute (ETI) is looking for partners to develop a type of mechanical sail for large ships that, it claims, could improve their fuel efficiency by 10 per cent. Called ...