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!

Everything You Always Wanted to Know About Wall Warts (But Were Afraid To Ask)

Everything You Always Wanted to Know About Wall Warts (But Were Afraid To Ask)

Jon Chandler has written a fantastic getting-started article on selecting an AC-to-DC power supply for your home electronics project over at Digital DIY. It covers the very basic details of voltage and current selection, and goes on to clearly and succinctly explain what “linear,” “regulated,” and “switching” power supplies are, and, most importantly IMHO, gives a bunch of practical tips on how to identify the various species of wall warts, in the wild, and determine if they are suitable for your own application. [via Hack a Day]

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Paperclip Snub Dodecahedron

Paperclip Snub Dodecahedron

I can’t tell you how much it warms my editor’s heart to see readers trying their hands at the projects we publish and reporting the results back to us. Charlotte DeKoning saw our recent Math Monday column on making mathematical constructions with office supplies and decided to accept the challenge of building a snub dodecahedron […]

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Belt-Driven, Hubless Rear Wheel Bicycle

Belt-Driven, Hubless Rear Wheel Bicycle

The aim was to use a hubless wheel to create a compact bicycle, with the benefits of a large wheel and belt drive.Hubless wheels have appeared in bicycle concepts already, and were first invented by Sbarro. However, few concepts have made it to prototype and when only used for aesthetic purposes, the disadvantage of extra cost out weights the visual gain. Lunartic uses the hubless for a reason; to house the working parts, reducing the wheel base but not sacrificing conventional riding geometry. Lunartic is supposed to be as compact as possible without folding or being awkward to ride, however there is the potential for the front wheel to fold up into the rear or for that space to be used for a laptop back, motor or dynamo.

Continue Reading Sean Michael Ragan48
How-To: Build A Reciprocal Roof

How-To: Build A Reciprocal Roof

Brian Liloia documented his build of this round self-supporting roof structure in 2008, while living in Missouri. This type of self-supporting structure, in which each beam bears the weight of another, and has its weight born by yet another, and all arranged such the load is thus distributed ’round in a continuous cycle, is called a reciprocal frame. It requires at least three members, and you can build a simple working model with matchsticks. [via No Tech Magazine]

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Greebly Coffee Table From E-Waste

Greebly Coffee Table From E-Waste

Though we see lots of furniture built from old computer parts, electronics, and other scrap, I especially like this one because I think it provides an object lesson in how to do this sort of thing and make it look good: Greeble it up! When you’re basically just glomming bits together to achieve a utilitarian form, the more visual complexity you can achieve in the surface texture, the better.

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