Phase-Changing Material Created For Robots
rtoz writes In the movie Terminator 2, the shape-shifting T-1000 robot morphs into a liquid state to squeeze through tight spaces or to repair itself when harmed. Now a phase-changing material built from wax and foam, and capable of switching between hard and soft states, could allow even low-cost robots to perform the same feat. The material developed by MIT researchers could be used to build deformable surgical robots. The robots could move through the body to reach a particular point without damaging any of the organs or vessels along the way. The Robots built from this material could also be used in search-and-rescue operations to squeeze through rubble looking for survivors.
Or, as penis implants for old men. ;-)
Lost at C:>. Found at C.
Just because it was cool in the movie doesn't mean we have to build one.
const int one = 65536; (Silvermoon, Texture.cs)
SJW, n: "Someone I don't like, and by the way I'm a fuckwit" - AC
um... ok, so its silicone rubber coated in wax. Heat the wax and the silicone can flex because the wax is fluid. Let it cool and the wax hardens. That doesn't sound even remotely durable to me. How is this useful?
If I had a dime for every one these "researchers made the next big thing" articles I'd use it to fund a web start-up that tracks all these claims so I could watch the PR buzz fizzle into obscurity time after time. The tally so far: solar panels should be 1456% efficient, LEDs 124% efficient, batteries should outperform gas in every metric, the world should be filled nano-tube everything, and robots should be flying all around me at this instant.
What the headline should say is "University trolls for more funding..."
https://www.youtube.com/watch?v=1_WiShe0NOE
http://lmgtfy.com/?q=wax+motor
Paraffin wax is a known phase change material used in everything from washing machines, battery thermal management, automobiles, and thermostats. A project which has had moderate success with phase change materials is the Slocum Thermal glider which uses a PCM to harness thermal energy from the ocean.
OpenGlider V0.1 used 4 silicone bladders full of paraffin wax for both attitude control and a high pressure buoyancy engine. Unfortunately there were some fundamental design problems with the energy storage system that forced the transition to a more traditional approach. IE: using electric motors in V0.2 & V0.3(currently in development).
I think paraffin wax still has potential, but it's high specific heat translates to a large energy cost per cm^3 of volume change per dive cycle. My physics teacher discouraged my from pursuing PCMs because of the enthalpy losses, but without quantifying the losses it is difficult to do a cost benefit analysis on the design tradeoffs.
The goal of the project is the design of a low cost underwater glider to increase access to oceanographic data collection.
www.openglider.com