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Wanted: Amputee Test Subjects for High-Profile Research
Volunteering for amputee research is a tremendous gift to the limb-loss community. And the perks can be pretty good, too ...

Building a Bionic Knee on a Budget
Lucas Galey has been working on a low-cost microprocessor knee for more than five years. His latest prototype offers high-end ...

As Amy Purdy Retires, We Look Back on Her Greatest Hits
Purdy graced the cover of Amplitude’s inaugural edition and has routinely appeared in our coverage. Here are our favorite articles ...