Custom EBike Boasts 76 Kilometers Per Hour, 210 Per Charge
A commenter on last week’s electric bike round-up pointed me to this drool-inducing 2008 build from one “Doctorbass,” of Quebec. I am especially impressed by the custom-built battery pack.
Science
DIY science is the perfect way to use your creative skills and learn something new. With the right supplies, some determination, and a curious mind, you can create amazing experiments that open up a whole world of possibilities. At home-made laboratories or tech workshops, makers from all backgrounds can explore new ideas by finding ways to study their environment in novel ways – allowing them to make breathtaking discoveries!
Caterpillar Bot Mimics “Ballistic Rolling”
From Huai-Ti Lin, Gary G. Leisk, and Barry Trimmer from the Departments of Biology, and Mechanical Engineering, at Tufts University. ScienceNOW has video of the model organism, and the model behavior, that inspired this impressive means of locomotion.
Polymer Electrolyte Membrane (PEM) Powering MP3 Player
Ran into this on the element14 site and thought it was interesting. It’s technology I don’t really know that much about. Maybe you all do. This video is of a Polymer Electrolyte Membrane (PEM) Hydrogen Fuel Cell (green color) powering a MP3 player. A PEM water electrolyser is show on the background (blue device) to […]
30 Days 30 Things
I love these sites where people challenge themselves to do a project every day for a month, or a year, or whatever. I think that, being under this kind of pressure, with lots to produce, frees you up, in a weird way, to get really creative, to think outside the box. Here, University of Applied […]
Top 10: CRAFT-y Bike Projects
What’s this? Women are riding bikes now? When did that happen? What’s next, the demise of the hoop skirt? Becky is poking me in the ribs, now. Apparently, she claims, women have been riding bikes since the 1880s. Huh. I have been out of the loop. Now she’s poking me harder and pointing out that lots of men, these days, like to sew, crochet, and do other sissy craft stuff. (She didn’t say “sissy,” actually.) Apparently, CRAFT readership is up among male readers, too. Geez, is nothing sacred?
John Iovine: Geiger Counter Sanity Check
Through his company Images Scientific Instruments, John Iovine has been designing, making, and selling Geiger counters for nearly 15 years. MAKE’s Paul Spinrad talked with him about the recent run on Geiger counters, how (in)accurate and misleadingly described many of them are, and two new counters he’s designing for MAKE Volume 29: a standalone data-logging […]
Math Monday: Microscopic Fractals
By George Hart for the Museum of Mathematics We have seen various ways to make the Sierpinski tetrahedron in a past Math Monday column, but here is a new one. A direct laser writing process was used to produce this polymer tetrahedron, which is just 100 microns tall—the thickness of a hair. This remarkable object […]