reverse engineering the jellyfish
Posted: Mon Jul 23, 2012 7:17 pm
http://www.sciencenewsline.com/articles ... 60007.html
Team Reverse Engineers a Jellyfish with the Ability to Swim
Team Reverse Engineers a Jellyfish with the Ability to Swim
Yet still:thanks to recent advances in bio-inspired engineering, a team led by researchers at the California Institute of Technology (Caltech) and Harvard University have flipped that fable on its head: turning a solid element—silicon—and muscle cells into a freely swimming "jellyfish." ...
Because a particular function—swimming, say—doesn't necessarily emerge just from copying every single element of a swimming organism into a design, "our idea," she says, "was that we would make jellyfish functions—swimming and creating feeding currents—as our target and then build a structure based on that information." ...
Jellyfish are believed to be the oldest multi-organ animals in the world, possibly existing on Earth for the past 500 million years. Because they use a muscle to pump their way through the water, their function—on a very basic level—is similar to that of a human heart, which makes the animal a good biological system to analyze for use in tissue engineering. ...
"I was surprised that with relatively few components—a silicone base and cells that we arranged—we were able to reproduce some pretty complex swimming and feeding behaviors that you see in biological jellyfish," says Dabiri, with fluid-dynamics measurements that match up to those of the real animal. ...
This advance in bio-inspired engineering, the team says, demonstrates that it is inadequate to simply mimic nature: the focus must be on function. ...
What is it going to take for these knuckle heads to recognize design? You'd think that all these engineering types would see that right away. But if the experts in in those fields don't see it, perhaps i can be excused for missing the boat as well."I'm pleasantly surprised at how close we are getting to matching the natural biological performance, but also that we're seeing ways in which we can probably improve on that natural performance. The process of evolution missed a lot of good solutions."