Scientists have developed artificial muscles that are 100 x stronger than human muscles using fishing line. Via Discover Magazine.
Scientists at the University of Texas at Dallas have designed super strong artificial muscles by simply twisting and coiling ordinary fishing line. The coiled muscles can lift more than 100 times the weight of a human muscle of the same size, and generate as much mechanical power per kilogram as a jet engine — perhaps offering an inexpensive new material to move prosthetics and robotic exoskeletons.
Creating the muscles is simple: Researchers use a tool similar to a hand drill to twist different sizes of fishing line to the point of coiling. The twist allows the thread to function like torsional muscle that can lift heavy loads. Depending on the direction of the coil, the artificial muscles will expand and contract with temperature changes, which can be produced by electricity, water, light or chemical reactions of fuels.
For example, a homochiral muscle will contract when heated and expand when cooled. Coiled in the opposite direction, a heterochiral muscle will expand when heated and contract when cooled. The coiled muscles can spin a heavy rotor more than 10,000 revolutions per minute when uncoiling. Researchers tested various widths of polymer coils using several techniques to activate expansion and contraction of the coils. They report these findings in Science.
“The work capacity of these muscles is remarkable,” Baughman said. “The power generation capability can be about five times that of a combustion engine in your car.”
In the quest for artificial muscles Baughman has worked with many materials, including carbon nanotube yarns, but he says high-strength polymers are promising for their strength, affordability and availability.
Adafruit publishes a wide range of writing and video content, including interviews and reporting on the maker market and the wider technology world. Our standards page is intended as a guide to best practices that Adafruit uses, as well as an outline of the ethical standards Adafruit aspires to. While Adafruit is not an independent journalistic institution, Adafruit strives to be a fair, informative, and positive voice within the community – check it out here: adafruit.com/editorialstandards
Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.
Have an amazing project to share? The Electronics Show and Tell is every Wednesday at 7pm ET! To join, head over to YouTube and check out the show’s live chat – we’ll post the link there.