Global S&T Development Trend Analysis Platform of Resources and Environment
The Wily Octopus: King of Flexibility | |
admin | |
2020-11-30 | |
发布年 | 2020 |
语种 | 英语 |
国家 | 美国 |
领域 | 气候变化 |
正文(英文) | Octopuses have the most flexible appendages known in nature, according to a new study in Scientific Reports. In addition to being soft and strong, each of the animal's eight arms can bend, twist, elongate and shorten in many combinations to produce diverse movements. But to what extent can they do so, and is each arm equally capable? Researchers at the Marine Biological Laboratory (MBL) filmed 10 octopuses over many months while presenting them with a variety of challenges, and recorded 16,563 examples of these arm movements. Amazingly, all eight arms could perform all four types of deformation (bend, twist, elongate, shorten) throughout their length. Moreover, each type of movement could be deployed in multiple orientations (e.g. left, right, up, down, 360º, etc.). Especially noteworthy was the clockwise and counterclockwise twisting that could occur throughout each arm during bending, shortening or elongating. This twisty strong arm is exceptionally flexible by any standard. "Even our research team, which is very familiar with octopuses, was surprised by the extreme versatility of each of the eight arms as we analyzed the videos frame-by-frame," said co-author and MBL Senior Scientist Roger Hanlon. "These detailed analyses can help guide the next step of determining neural control and coordination of octopus arms, and may uncover design principles that can inspire the creation of next-generation soft robots." Engineers have long wished to design "soft robotic arms" with greater agility, strength and sensing capability. Currently, most robotic arms require hard materials and joints of many configurations, all of which have limitations. The octopus presents a novel model for future robotic designs. Octopus arms are similar in function to the human tongue and the elephant trunk; they are muscular hydrostats that use incompressible muscle in different arrangements to produce movement. The current study provides a basis for investigating motor control of the entire octopus arm. Soft, ultra-flexible robotic arms could enable many new applications, e.g., inspecting unstructured and cluttered environments such as collapsed buildings, or gentler medical inspection of alimentary or respiratory pathways. Video: https://www.youtube.com/watch?v=YRoLxJ9FjJk&feature=emb_logo
make a difference: sponsored opportunity
Story Source: Materials provided by Marine Biological Laboratory. Original written by Diana Kenney. Note: Content may be edited for style and length. Journal Reference:
Cite This Page: Marine Biological Laboratory. "The wily octopus: King of flexibility." ScienceDaily. ScienceDaily, 30 November 2020.
Marine Biological Laboratory. (2020, November 30). The wily octopus: King of flexibility. ScienceDaily. Retrieved November 30, 2020 from www.sciencedaily.com/releases/2020/11/201130150352.htm
Marine Biological Laboratory. "The wily octopus: King of flexibility." ScienceDaily. www.sciencedaily.com/releases/2020/11/201130150352.htm (accessed November 30, 2020).
|
URL | 查看原文 |
来源平台 | Science Daily |
文献类型 | 新闻 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/305558 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | admin. The Wily Octopus: King of Flexibility. 2020. |
条目包含的文件 | 条目无相关文件。 |
个性服务 |
推荐该条目 |
保存到收藏夹 |
查看访问统计 |
导出为Endnote文件 |
谷歌学术 |
谷歌学术中相似的文章 |
[admin]的文章 |
百度学术 |
百度学术中相似的文章 |
[admin]的文章 |
必应学术 |
必应学术中相似的文章 |
[admin]的文章 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论