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Evil Mad Scientist
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The Tinkering Studio at the Exploratorium has a great post on making copper crowns with LEDs as a soldering practice project. IMG_0533. The circuit diagrams are wonderful, evoking possible shapes of the crown. Print Friendly Version of this page Print Get a PDF version of this webpage PDF ...
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Karl g Wallin's profile photoPeter Hanely's profile photoAustin ES STEM's profile photoHaixiao Sun's profile photo
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Looks good for your little girl come October 31.  And an application for which I'd make sure to use lead free solder.
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Our co-founder Windell Oskay is the guest on Cool Tools this week, and talks about some of his favorite tools, ranging from pencils to soldering irons. You can read about them or listen to the full podcast. Print Friendly Version of this page Print Get a PDF version of this webpage PDF ...
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I love my Metcal.
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10 Cuts: How to make wooden pliers (YouTube, embedded above); Inside the TWA terminal at JFK, a “time capsule from 1962.” Emu vs Weasel Ball (YouTube); How does pumping a swing work? Historic spacecraft illustrations, CC-licensed. Echochamber.js — a brilliantly cynical approach to blog comments ...
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Oh man, echochamber.js is an amazing idea! Right?

Right?
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A 4-40 SHCS screw long enough to allow me to actuate the clip was not threaded all the way to the head, so I used a 1/4″ spacer between the binder clip and the 4-40 nut. (Pan head screws are usually 100% threaded, but I would have had to look in the dreaded 'other' box to find one of those).
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Pete Prodoehl's profile photoJohn Bump's profile photoJoey Aguilera (tentaclejoe)'s profile photo
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The binder clip idea would work great when I'm trying to twist four or five wires, and I'll give it a try.
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Intel hosted a series of conversations with the company's Open Source Hardware Advisory Panel – a group of key enablers in the global open source hardware ecosystem – about licensing, best practices, sustaining development communities, business models, path to product, Shenzhen, and the evolving ...
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Biosphere 2 is an enormous earth science laboratory, originally built as an attempt to create a closed ecosystem. The goals were to study long term viability of an isolated human habitat, such as might be needed for long term space travel or colonization.
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We found a remake from our project Make your own 1952 Fraction-of-an-inch Adding Machine on display at Xerocraft, a hackerspace in Tucson. They cut and engraved the calculator out of hardboard using their laser cutter. It's sturdier than papercraft and it looks great!
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Looks like a circular sliderule
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Our two “dis-integrated circuit” kits are the Three Fives Discrete 555 Timer, and the XL741 Discrete Op-Amp. These two kits are functional, transistor-level replicas of the original NE555 and μA741 (respectively), which are two of the most popular integrated circuits of all time.
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These are sweet.
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Thought you might enjoy this photo showing the WaterColorBot in action while inking some custom “brown bag lunches” for summer camp. Final results… And here is another. Fun project! They look great— thanks for sharing them with us! Print Friendly Version of this page Print Get a PDF version of ...
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BUILD SOMETHING THAT MATTERS The creative energy and years of experience found in our huge community of Hackers, Designers, and Engineers is waiting to be unleashed. Let's use that potential and move humanity forward. We're helping to judge the Best Product category, which has fewer than 50 ...
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ryan callahan's profile photo
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(408) 462-1064, Skype: evilmadscience
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Evil Mad Science LLC 175 San Lazaro Ave, Suite 150 Sunnyvale, CA 94086
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DIY and open source hardware for art, education, and world domination
Introduction
Evil Mad Science LLC was created in 2007 to produce open source and other DIY-oriented hardware, in support of our project blog, Evil Mad Scientist Laboratories. Evil Mad Scientist Laboratories continues today as the R&D arm of Evil Mad Science.