Welcome to the Dozenal Society of America’s electronic brochure database. How do we do base twelve (duodecimal) math? Visit The Basics , which offers a few articles which help you get started using base twelve. Over the coming months in 2011, the DSA will be remastering articles from its Duodecimal Bulletin which cover basic operations so that beginners and students studying number bases might have access to our authorities on duodecimal arithmetic. We’ve got plenty of other articles as well, from how to design your own base twelve numerals, who started the DSA, what do DSA Members think about the SI-Metric System, and advanced articles about dozenal number theory.
In a revolutionary leap that could transform solar power from a marginal, boutique alternative into a mainstream energy source, MIT researchers have overcome a major barrier to large-scale solar power: storing energy for use when the sun doesn't shine.
A homemade vertical turbine can supply big power at little cost By Doug Cantor Posted 07.06.2007 at 2:00 am by John B. Carnett HOW IT WORKS As the wind turns the wings, magnets in the alternator spin, generating voltage in the wire coils.
As electronic devices got more complicated in the past few decades, it became increasingly difficult and expensive to tinker with hardware. The 1970s garage engineers who built their own computers gave way to geeks who programmed their own software. But now the rise of open-source hardware is paving the way for a return of build-it-yourself electronics.