In a PLoS-One paper, Steven H. Collins (Department of Biomechanical Engineering, Delft University of Technology) and Arthur D. Kuo (Departments of Mechanical and Biomedical Engineering, University of Michigan) describe an ingenious new prosthetic foot that uses a microcontroller to guide a device that stores the energy of the downstep and releases it for the upstep, mimicking the natural functioning of unmodified human ankles.
We developed a microprocessor-controlled artificial foot that captures some of the energy that is normally dissipated by the leg and "recycles" it as positive ankle work. In tests on subjects walking with an artificially-impaired ankle, a conventional prosthesis reduced ankle push-off work and increased net metabolic energy expenditure by 23% compared to normal walking. Energy recycling restored ankle push-off to normal and reduced the net metabolic energy penalty to 14%.
The Breitbart chief and Trump campaign CEO’s sexist bullying was evident in the early days of Biosphere 2 in Arizona, then a quasi “space colonization” and environmental research project. Stephen K. Bannon, who recently took a leave from running Breitbart.com to become Donald Trump’s chief campaign executive, once bullied women in the historic environmental research […]
Jesse Singal requested this shoop, and I delivered. After all, who’s downloading pirated papers? Everyone. (I’ve uploaded this to Redbubble if you’d like a poster—of course, you can just as well pirate it.)
If you’re like us, you occasionally get ambitious with your dinner and try to cook multiple sides plus a main dish. These efforts usually end as a cold meal plus a pile of dishes to wash. MasterPan Multi-Sectional Meal Skillet makes it super easy to make multiple dishes at once without the hassle. This heavy gauge bottom pan […]
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If you’re looking to earn a top salary in the tech industry, there’s no better career than coding. However, sometimes the hardest part of entering this career path is knowing where to begin.We took the Complete Web Developer Course because it took that decision out of our hands. This course teaches beginner-friendly coding languages that will also help land an immediate […]