Another Perpetual Motion Machine here, this one is magnetic. Not sure how this one was done. Any ideas? It is very convincing, my first guess would be a small motor within the center drum. The real system is demonstrated at the 2:00 mark. —SPOILER ALERT— After you are done guessing how this is done click here or have a look in the comments (number 13). Mfsamuel has located an
What do you do when you have an old treadmill and the controller dies? Most people would haul it to the dump, some might contact the manufacturer and see if a replacement controller is available, having it repaired in your home is probably not an option since the diagnostic call can repair service call and repair parts would probably cost more than a new unit. Parallax forum member knikula
The prize this week is a breadboard power supply. This contest will run for one week (Feb 16 – 22, 2013). Ending time is based on central standard time. To enter, identify the item above and what it can be used for. Please do not give the answer in the comments. Send an email to contest @ hackedgadgets.com with “Name the Thing Contest” as the subject, and the message
If you are looking to make some noise with your next project, have a look at the Micro Granny, it’s a Pocket Sized Arduino based Granular Sampler. Via: Make “Features: basic parameters of sound: pitch, crush, volume, start, cut, repeat micro sampling parameters of sound: shift speed, loop length, shift direction (forward,backward,random1,random2) lfo parameters of sound: rate, amount, destination (pitch, crush) instant loop feature micro SD card slot  (plays
This forum post over at the EEVBlog Forum gives us a great look at the inside of an old Tektronix 465 Oscilloscope and walks through the repair and refurbishment of the scope. The refurbishment isn’t just taking a cotton swab and rubbing out some dirt, it is rather invasive including a complete system dismantle and cleaning. Nice thing about this method is we get to see all of the
If you have a laser machine and want to make something cool, check out this stool that was cut by hisashi_kun from some 2.5mm MDF. Even if you don’t use it as a stool it looks like a nice conversation piece to have in the corner of the living room. Everything in the middle slots together and the outer pieces snap together and has cuts that allow the wood
When developing a new circuit design you will find that you often drop in solutions from previous projects since there’s no reason to re-invent the wheel every time. HackEDA takes this idea and pushes it out to the web, it’s in beta right now so it might not be able to handle all of your project ideas but by clicking a few buttons you can build the basic framework
