Flying cars have been a dream of mankind since, well, since there were cars. Prototypes have been around for decades. But now this dream is on the doorstep of becoming reality. More and more companies are developing flying cars, air taxis, passenger drones, or similar individual air transport vehicles. One of them, Lilium, is striking deals left and right. Of course, there are still legal and technical hurdles. But in the future, you can probably take an air taxi in Saudi Arabia.

The fashion industry uses huge amounts of resources. This is not helped by the popularity of fast fashion, which shortens the lifespan of garments. The Belgian start-up Arkai is trying to reverse the trend. A new bra aimed at young girls is made of recycled materials. More importantly, it is adjustable, prolonging its useful life.