vacuum cleaner

tags: Self Playing Harmonica, music, music video, DIY, computer printer, harmonica, vacuum cleaner, Instructibles, Stupid Inventions, streaming video There are lots of different types of Self-Playing Instruments, but the folks at Stupid Inventions wanted to create something new so they decided to build the Self Playing Harmonica. Made from an old printer and a vacuum cleaner, the Self-Playing Harmonica will play different songs based on the image you print. You can learn more about this and find step-by-step instructions for constructing your own self-playing harmonica at Instructibles.

Check out this thing. That is where the guy (Jem Stansfield of BBC's Bang Goes the Theory) shows how he built this thing. Here is part 2 where he uses it to climb a building. Here are some questions: Why does it not matter how powerful the vacuum is? How does a vacuum cleaner work anyway? How does the vacuum cleaner work? I know this is not HowStuffWorks.com, but I guess I should show some stuff. The cool thing about a vacuum cleaner (think shop vac so that I don't have to deal with the brushes) is that it is just one thing - a fan. The fan essentially moves air out of the vacuum part of…