After releasing the “Open source Homeland Security non-lethal weapon – The Do-it-yourself handheld LED-based Incapacitator” a few folks around the web emailed or posted saying “you can’t build that for yourself, or even for fun, it’s patented!” – This comes up once and awhile in the world of making things, perhaps it’s a good conversation […]
Almost 100 years ago, John Krubsack made this amazing chair by growing a bunch of box elder trees together.
The heart of the circuit is the LM35DZ temperature sensor which is factory-calibrated in the Celsius (or Centigrade) scale with a linear Degree->Volt conversion function. The output voltage (at pin 2) changes linearly with temperature from 0V (0oC) to 1000mV (100oC).
It’s been such a fun experience doing this Crochet-Along with you all! We’ve had some great participants who have made some incredible dolls. If you want to start now check out the lessons here. Giveaway Results! The Winner of 1 signed copy of Tiny Yarn Animals by Tamie Snow: Flickr user : SugarCoatedCreations The Winner […]
I reviewed The Boy Who Harnessed the Wind for Good. I think it’s one of the best books I’ve ever read. Here’s an excerpt of my review: William Kamkwamba’s parents couldn’t afford the $80 yearly tuition for their son’s school. The boy sneaked into the classroom anyway, dodging administrators for a few weeks until they […]
The They Might Be Giants love just doesn’t stop over here, check out Theremin Cat by Hine Mizushima for TMBG’s Here Comes Science.
I love vanilla, and so of course really good homemade vanilla extract is the holy grail. We ran a vanilla extract DIY in Volume 07 of CRAFT, but I love this “semi-scientific” approach to testing out homemade vanilla recipes on Build/Make/Craft/Bake. (And what better way to taste test vanilla than in whipped cream??)
