Delft University of Technology

In the 1940s, one bank of the Ilisos River in Athens was a large slum, with shacks set up there by refugees who arrived after the 1922 Asia Minor Catastrophe. Alexander Tzonis, an architect and professor emeritus of the Delft University of Technology who grew up nearby, was deeply fascinated with the ingenuity of the community and sought to immortalize it in photos.

Ajdovščina – A hydrogen-powered hybrid-electric four-seater aircraft, developed in a project headed by the Slovenian ultralight aircraft maker Pipistrel, has made a successful virgin flight.

Announcing the news, Pipistrel Vertical Solutions called the Hy4’s flight a “landmark milestone for the MAHEPA project and for the future of clean aviation”.