Steve Davee made a version of the Compressed air rocket, using a Presta valve and black pipe:
Thanks for such a fantastic project and such thorough documentation, Rick!
Here’s some pictures of a black pipe, copper and brass version, and the use of a presta valve.
I’ve been meaning to thank you for his article especially as I got a lot of use and inspiration from your designs this past summer for various tinkering camps, parties and workshop.
Once again, thanks for such a useful, fun and inspirational project.
Hide yo’ kids, hide yo’ wife…’cause these robots didn’t come to play. From @make take a peak at some of the scariest
Now, how could I fashion such a roller-coaster in my courtyard? Would make BBQ’s a lot more fun!
Inspired by the crystal resonator video, SKR has a great idea:
Wouldn’t it be great if objects had signs that read,”look inside it’s amazing” instead of “warranty void if opened”? (1 reply)
and Shadyman suggests a compromise:
Or “Warranty void if opened, but look inside anyways because it’s amazing”
Sam Ley proposed an update to the rockets of the world poster:
Cool poster, it’s too bad that it is so out of date! There are a lot of cool rockets that could be added. Two that come to mind would be the Space X Falcon 1 (successful launches last year), at ~22m high, would come in about halfway through the 3rd row. Space X’s larger rocket, the Falcon 9, which achieved LEO in June (http://www.spacex.com/F9-001.php), at ~55m high, would come in on the bottom row, between the Proton, USSR and the Space Shuttle, USA. Amazing how far private industry spacecraft have come since this poster was made, back when it was dominated by government projects. How long until we build something bigger than the venerable Saturn V?
Over on Facebook, Richard Freeberg has this to say about the fluid tubing garment:
Gee, and I thought I had some weird ideas!
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