Solutions for donations of medical equipment that go unused, communication problems on farms and cholera, and why a computer is coming after your job – these are the highlights in engineering and design for global development, as tweeted in 140 characters or less.

For up-to-the-minute updates from E4C on Twitter, please follow us at @Engineer4Change.

D-Rev designs low-cost, high-quality prostheses for patients around the world. This video takes us inside a clinic in Ecuador where patients are fitted and learn to use their new limbs.

Up to 70% of complex medical devices sent to Africa aren’t used, the World Health Organization reports, but the Swiss firm EssentialTech has a solution.

Development professionals, dust off your resumes: Computers are coming for your jobs.

Here’s a thoughtful narrative description of tech hubs from Jonathan Kalan, an expatriate member of iHub in Nairobi, Kenya. Africa’s hub boom has emerged to fill a vacancy left by businesses such as coffee shops and Internet cafes that never really caught on in East Africa, Kalan says.

Controversy is no stranger to Mitra Ardron, CEO of Lumeter, a solar power company that operates in emerging markets. He dished it out in heaps during his presentation for the E4C Webinar Series. We tweeted highlights under #E4Cwebinars.

We’ve seen tech that mimics the water-gathering namib beetle before, but for some reason, we haven’t seen a water bottle until now. And it seems like such a good idea (if it works).

A radio station in Bangladesh helps farmers share tips on seeds, pests and the changing climate, The Guardian reports.

Iana Aranda, at E4C, tweeted highlights from the Social Impact Design Summit at Cooper-Hewitt National Design Museum.

Cholera really is an engineering problem.