thermoplastic
Latest
Climbing robot melts and cools plastic to get its footing
We've seen plenty of robots scale walls over the years, from models that emit supersonic streams of air to gecko-inspired creations, but few can carry more than their own weight, much less handle rough terrain. Enter this unique Swiss-made machine, which handles both tasks with aplomb thanks to the rapid melting and cooling of its thermoplastic adhesive feet. Created by the whiz kids over at the Swiss Federal Institute of Technology, the plastic compounds in the contraption's tootsies melt at around 70 degrees Celsius (158 Fahrenheit), where they're tacky enough to stick and fill surface gaps. If the bot needs to take a step forward, a thermoelectric effect kicks in to cool the plastics down, detaching the foot in the process. Repeat the motion several times and you get a tiny climbing critter that's able to carry about six to seven times its own weight over complex surfaces, a feat that's sure to be of actual use someday. It's certainly more practical, though a lot less fun, than one that mixes cocktails. Go on after the break to see the little climber in action.
Bridgestone rolls with air-free tire concept (video)
The days of flat tires and spares are numbered. Sure, self-inflating tires are all well and good, but don't protect from the darn puncture itself. Similar to Michelin's tweels, Bridgestone has cooked up some air-free concept tires that use a tough but flexible thermoplastic structure that behaves like a normal tire with nary any horizontal force produced. Each wheel is able to support around 150kg, although on a typical electric mobility scooter the load is more likely to approach 50kg. Bridgestone is looking to show off those curved, hypnotic spokes on the retail model, but is still researching how to protect against objects getting lodged inside. Roll over the break to see those spokes in action and imagine a future without puncture repair kits.
