La mejor parte de Perpetual Marble Machine Kinetic
La mejor parte de Perpetual Marble Machine Kinetic
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"Gorgeous kinetic art wheel. Fast delivery and excellent handcrafting. All my friends,visitors and me are completely fascinated. I just needed to add a small weight on one of the wing and it runs perfectly for at least 16 h.
I suggest "dry"- assembling a few components ahead. PROS: This is a heavy duty set. I like Ugears, Woodtrick, etc - but those super-light weight wood makes them delicate. Also, unlike those other brands, you don't have to lubricate any of the gears." wooden marble run kinetic art perpetual motion device the great wooden toys for boys
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"Just perfect! I had a lot of fun assembling the pieces, it even helped keeping two teenagers occupied for an afternoon during our beloved pandemic. Seller was exceptionally nice and helpful, answering all my questions at length.
"Just completed the marble run. I had to make a couple of adjustments & now it works great. The documentation on the other hand - needs improvement. Some of the illustrations aren't clear. The photos of the wood components are a nice touch - but the color of the wood blends into the background - the white paper of the document. Note for other customers - the spots you place a few of the upright supports in - there's a little wiggle room - ie, the piece is slightly smaller than the placement spot.
I wish we’d had this little solar-powered marble machine kit back then, because it totally would’ve been in our wheelhouse. From the company’s description:
Etsy is powered by 100% renewable electricity. Etsy’s 100% renewable electricity commitment includes the electricity used by the data centers that host Etsy.com, the Sell on Etsy app, and the Etsy app, Figura well Figura the electricity that powers Etsy’s Completo offices and employees working remotely from home in the US.
^ The device shown is a "mass leverage" device, where the spherical weights here on the right have more leverage than those on the left, supposedly creating a perpetual rotation. However, there are a greater number of weights on the left, balancing the device.
Consistently earned 5-star reviews, shipped orders on time, and replied quickly to messages Sort by: Relevancy
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A rejection [of a patent application] on the ground of lack of utility includes the more specific grounds of inoperativeness, involving perpetual motion.
The drinking bird toy functions using small ambient temperature gradients and evaporation. It runs until all water is evaporated.