Transformable

Air travel can be difficult for the mobility-challenged … they have to get a wheelchair at the airport, or make sure that theirs gets stowed. Engineer Richard Williams has developed an alternative: a folding wheelchair that doubles as a carry-on bag.

It would be handy if there was a filtration medium that could be electronically "switched" to capture particles of different sizes. It turns out that there soon may be, thanks to a newly-developed conductive polymer that changes state, on demand.

The Tricksy is designed to serve as both a cargo trike and a shopping cart.

​VTOL (vertical take-off and landing) drones already have some advantages over multicopters and fixed-wing drones, but could they offer even better functionality? The designers of the ROTORwing seem to think so, as their aircraft's wings actually double as its rotor blades.

​If cycling helmets weren't so bulky to carry around, it's entirely possible that more people would actually use the things. That's why British cyclists Josh Cohen and Dom Cotton invented the Cyclo, which features a unique "flipclip" design.

​While regular multicopter drones are highly stable and maneuverable, their vertical take-off and landing (VTOL) counterparts are faster and more energy-efficient when in forward flight. Germany's Quantum Systems has set out to combine the best of both worlds, with its 2-in-1 Vector/Scorpion drone.

Dutch design firm Studio Rotor has been working with startup Retter Helfer Medical on a lightweight patient transport option for ambulance personnel. The Multi Scoop Pro features a patented mechanism that sees it change from flat stretcher to wheelchair in a matter of seconds.

​While many people use cargo bikes to haul their small children from place to place, how do they cart their tykes around upon reaching their destination? Well, in the case of the Dragonfly 2in1, the kid-carrying cabin simply detaches from the rest of the bike, becoming a stroller.

French custom builder Ludovic Lazareth is not a man that does things by halves. He has just released a fairly revealing teaser showing a 4-wheeled motorcycle, whose jet turbine-hubbed wheels fold up to turn the thing into a hoverbike.

​It's not uncommon for avid cyclists to own a mountain bike, a road bike, AND a commuter. Convert provides an alternative, in the form of the FF1. It consists of a frame that accepts different kits to become different types of bike – and the transformation reportedly only takes a few minutes.

​If you lead a car-free lifestyle, then you likely have to transfer your groceries from the store's shopping cart to your own hand cart or bicycle trailer in order to get them home. Gudrun and Harald Buschbacher have decided to address that situation, with their multifunctional shopping trolley.

Quadcopters are most stable with their four propellers arranged in a square configuration, with one prop at each corner of the square. Such a setup makes it difficult for the aircraft to fit through tight spaces, however. That's where the Quad-Morphing drone comes in.