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Pop bottles normally find their way into the trash or recycling but if you have some time you can make some interesting rockets with them. The 2 stage water rocket above was launched to a height of 864 feet.
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Thanks for the tip Curt
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This Gesture Controlled Lamp is powered by Raspberry Pi. An infrared camera is connected to the Raspberry Pi allowing the system to monitor for wand movements since the wand has an IR LED build into it. OpenCV is used to decipher the wand movements. There are a few simple gestures that are recognized to magically control the light. Via: Make “After a recent trip to Universal’s Wizarding World of Harry Potter, my daughters and I decided to create a project that could use the interactive wands from the theme park, at home, to control our own props and gadgets. We called it Raspberry Potter because it was powered with a Raspberry Pi. We demonstrated the project last year at the Minneapolis/St. Paul Mini Maker Faire and this article — Ollivander’s Lamp — is the latest extension of that project.”
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We have seen Paper Airplane making systems in the past, this one is super fast. Taking a stack of paper and jamming it through a set of rollers bending and folding as it goes makes for a very fast plane machine. The use is great, stack it full of flyers and fly them at your targets. Doing this from a tall building might be lots of fun! Via: Hackaday
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Instead of going out climbing wall or the movies this virtual experience system can provide you a variety of experiences in one facility. The user uses VR for the immersive visual experience and physical objects for the tactile environment.
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Mark Nesselhaus is building a computer the hard way, by using handfuls of transistors and cardboard.
“Attempt to build a computer using cardboard and brass paper fasteners as the base material for all of the logic circuits. Why? Well, the cardboard is free as my workplace puts it in the dumpster and I do not have the funds to buy better material. All of the electronic parts thus far were given to me by a friend who passed away and what better tribute than to build a computer. Except for the ALU all gates are either Nand or Nor using DTL. The transistors used are npn 2n2222 type or pnp 2n3906”
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