Feeding my fish live little fish

Seagoing biologists at the University of Texas at Austin say their research into slave breeding could help move much of the $1 billion seafaring ornamental industry toward entrepreneurs working to sustainably assemble fish for the aquarium trade, a... 20 (UPI) -- Breeding saltwater aquarium fish, seahorses and invertebrates in enslavement could preserve the ecosystems of the world's coral reefs, U. S. researchers say. "It's the lenient of thing that could transform the industry in the way that the suggestion of 'organic' has changed the way people grow and buy fruits and vegetables," Joan Holt, UT professor of seafaring science, said. Holt, a pioneer in developing food sources and tank designs that permit fragile larvae to survive to adulthood, is a vocal critic of known methods used to bring sea creatures from the oceans to pet preserve tanks.

Source: UPI.com

But by binding diverse strips of artificial muscle together in sheets, they can swipe flexible artificial fins that twist, curl and bend in complex ways, only just like the real thing. This allows the robofish to ‘drift’ motion in the water, just like real fish do. PhD critic Alex Esbrook takes a two-inch strip of artificial muscle from a dish on the lab bench. “These materials are frequently referred to as artificial muscles because they change their adjust a take form in response to electrical stimulation, much like muscles do,” Tan said. Esbrook inserts one end of the to the buff into a clamp attached to a battery, and the free end of the strip starts bending and straightening like a levitation allure trick. Some of Tan’s robotic fish swim through the water thanks to tailpiece fins made of electroactive polymers that move in answer to electricity. Artificial muscle works the other way too:  credit an electric current, and it moves and bends.

Source: Scientific American (blog)

by Kyle VanHemert

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