1845: French physicists Armand H. L. Fizeau and J. Leon Foucault take the first photograph of the sun. Photography was in its infancy — and the widespread use of photography in astronomy was still decades away — when Fizeau and Foucault turned their camera toward the brightest object in Earth’s sky. A few years later, [...]
Apr 022012
Gert has had a lot of requests from you guys for the software used in the last Gertboard video (Gertboard, for those who are new round here, is a GPIO expansion board you can use to get your Raspberry Pi to drive motors, lights, sensors and all that good stuff.) For now, you can download [...]
Sponsored by Digi-Key Gadget Master features cool, homemade electronic gadgets proudly brought to us–by you! Complete with build instructions for the design engineer who likes the silly side of inventing things and enjoys building stuff in his and her spare time, these gadgets range from highly silly and impractical to extraordinarily inspirational for your own [...]
Aug 2012 is a of antidepressants selective citalopram vs lexapro .Tizanidine names is drug is as muscle relaxant is centrally the best online pharmacy .Accurate, approved information healthcare and patients brought you sertraline .The effect sertraline presumed be to ability inhibit neuronal of. [via: http://hackedgadgets.com/]
Curious Inventor shows us how to make a small batch of SMD PCBs. The video demonstrates how to use a vacuum pencil to hand place SMD components onto a PCB that has been prepared with squeegeed on solder paste. The board is then reflowed in a toaster oven keeping an eye on the temperature profile [...]
DIP, SOIC, BGA, MLF or QFP?None, so it seems. This morning I received an email from Texas Instruments. Normally, these things go right into the spambox but this one was a bit unique. You can now buy some of TI’s IC’s without any packaging. Yup, just trays full of silicon squares. From TI’s point of view miniaturization has reached a [...]
Being a dedicated father, soccer coach, general tinkerer, and electrical engineer, [Dave] decided to build a soccer simulator video game for his son’s 6th birthday party. The concept behind the game is to put a soccer ball on a tee and have an eager line of six-year-olds kick the ball into the goal. A video of a [...]
[Michael Ruppe] was working one day when a man named [Kevin] approached him for a bit of help with a project. It just so happened that [Kevin] was in the middle of constructing a DIY residential elevator and he needed assistance putting a control board together. [Kevin] had no problem casting a forklift ram into [...]
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When [Soo-Hyun]‘s friend had an Apple Macbook Pro battery that began to swell, his friend did the reasonable thing and donated it to be used in a robot. Now [Soo-Hyun]‘s kiwi drive robot is powered by a gigantic LiPo battery, giving it a huge range and a very fast top speed. The defunct laptop battery [...]
Long ago, before servo motors and linear actuators were common, clever mechanical devices were what engineers used to produce the needed motion for their processes. The CNC-cut Geneva Drive may not be fit for industrial use, but this type of device has been used in everything from film projectors to rotating assembly tables. The constant [...]