Core77's case-study of the MIT Mobility Lab's "Leveraged Freedom Chair" is a fascinating look at the difficulties presented by designing a sustainable wheelchair for use by disabled people in the developing world. The final product can be sold for $100 -- a 90 percent reduction off traditional wheelchairs -- and uses a lever-driven propulsion system that works better over rough terrain. It uses bicycle parts to keep costs down and simplify maintenance.
Case Study: Leveraged Freedom Chair, by Amos Winter and Jake Childs
Unlike a multimeter, this battery tester isn’t battery powered. Instead, it measures the voltage across the terminals of 9V, AA, AAA, C, D and 1.5V button type batteries. It’s also easier to use than multimeter probes. It’s only $6.61 on Amazon and has a 4.5 star rating with over 1500 reviews.
This handheld magnifying glass has two bright LEDs and is powered by 3 AAA cells (not included). The manufacturer says the magnification is 40X. I think it is less than that, but it is still plenty powerful for my needs – mainly, reading the markings on tiny electrical components and checking the layer fusion on […]
The European Commission is probing whether Samsung televisions’ sensed when they were being tested for energy efficiency and changed their power consumption to get better ratings than they deserved.
Shake, stir, and muddle your way to delicious homemade cocktails with this must-have bar set. Expect only the finest quality tools from MakersKit — enabling you to unleash your inner mixologist.Top 12 Favorite Things of 2014, Sunset MagazineQuart-size vintage-style Mason jar shakerRetro double jigger for accurate measurementsStrainer & spouts for a mixologist-style smooth pourHardwood muddler […]
The Lytro Illum dares to be different, boasting even more robust features than its first generation predecessor and a sleek design reminiscent of professional DSLRs. What’s so cool about it? Most cameras capture the position of light rays, producing a statoc 2D image.
SitePoint Premium is the ultimate e-learning library for web developers, designers, and digital professionals. Famous for their web development books written by industry leaders, they’ve expanded their content library to include in-depth video courses and short, handy screencasts partnering with A Book Apart and UX Mastery. Whatever you want to achieve in your web career, […]