We all use Bypass Capacitors in our designs but what size do you normally pick and why? Does location of the bypass capacitor matter? Should you use multiple values of capacitors? Chances are some of these questions are not obvious and might enhance your future designs if you know the answers. Electro Labs has a great article that solves of these questions in their Bypass Capacitor Tutorial.
Have you ever used one of those neon screwdriver voltage testers? I haven’t seen them for a long time but I remember seeing one in a few tool boxes while growing up. I didn’t realize how dangerous they are if the voltage is more than it was designed for! For an interesting experimental test of an insulated screwdriver rated at 1000 V have a look at the 4:45 mark.
I have worked in quite a few companies where the employees have a dedicated desk or work space, some had lockable drawers but in most cases everything was unlocked. I have never had any issues with things going missing but Youtube user RuthJ180 didn’t have the same experience as I did. In her case some of her fancy pens and change was going missing. A mini spy camera and
Kuzyatech has acquired a a Weston 6000, Vintage Multimeter and performed a very detailed Teardown of the device. The meter looks very interesting but it sure isn’t the most ergonomic unit. It isn’t shown in the picture but the multimeter has the test lead jacks located on the right side of the body, that is a strange location but when you see how the fuse and batteries are replaced
) Our friend Rick Crammond has built a Hauksbee Generator. “The idea is that a triboelectric (electrostatic) effect occurs from sliding hands on glass. The voltage generated ionizes the gases in the globe, creating a blue plasma glow inside. Our rotating globe is a pyrex lab flask containing air under a partial vacuum, is mounted on a bicycle axle with skateboard bearings, and driven by a remote-control model aircraft
 If you hate when you don’t have a partner to play ping pong with you why not build a robot. Ulf Hoffmann is an industrial mechanic and has some creative ideas. His Ping Pong Robot (translated) is quite amazing, you can see it in action above. The videos below demonstrate the building blocks to get to where the robot is today. Via: Laughing Squid
When you get tired of flying a regular hexcopter why not kick things up a notch and install a stun gun on the thing to protect your property! “In the video above, CUPID (short for Chaotic Unmanned Personal Intercept Drone) takes down an intern. He doesn’t get up with ease.”
