Michael Mandiberg developed a kit for making your bike super visible to car headlights with retroreflective vinyl tape! It’s easy to apply, looks fly, and comes in several colors. I did up my ride too, check it out above in normal light and below in flash (simulating headlights). The kit makes a great gift for […]
Not a whole lot of build info, but this looks like it would be an exciting ride! [Thanks, Star!]
Spotted on the corner of 15th and P St., in Washington, DC, and posted on ReadysetDC. Bike of the Day: 15th + P
James Yawn’s site Recrystallized Rocketry has lots of great information about DIY rocketry, including this great tutorial about mounting a video camera. This hot pink rocket is called the “sugar rush,” because it is powered by Yawn’s homemade potassium nitrate/sugar rocket fuel. [Thanks, Kenneth!]
The key to the process is that the metallic aluminum is present as a nano-scale powder, and its oxidation by water thus occurs over a huge surface area and therefore proceeds very quickly, releasing amazing amounts of energy. The video starts with the acoustic mixing of the nano-aluminum with water to make a gray paste which is frozen, in a mold, to make a tubular rocket motor. It then proceeds through various test-bench firings and culminates (at 4:00) in the launch of an actual rocket using the mixture.
Build a fun-for-all-ages mini car launcher for next to nothing. Thanks go to Nancy Dorsner for the original article in MAKE, Volume 20. To download The Rubber Band Power video click here and subscribe in iTunes. Check out the complete Rubber Band Power article in MAKE, Volume 20 and you can see that in our […]
Build a fun-for-all-ages mini car launcher for next to nothing. Thanks go to Nancy Dorsner for the original article in MAKE, Volume 20. View the PDF of this project. and then subscribe to MAKE Magazine for other great projects you can do over the weekend.
