RSSI wish I could speak Spanish - Argentinian Alberto Oscar made this great little mechanical climber, I'd love to know what his narration is about. There are other constructions at his blog, Surprising Physics (Fisica Sorprendente).
Mechanical climber
Posted by Patti Schiendelman |
Jun 21, 2008 07:00 AM
Arts, Kids, Science |
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I've begun to transcript and translate the video for you, but on the site there is a link at the bottom that permits to translate the posts.
Here is the English version of this video:
A simple demonstration of several aspects of the mechanical branch of physics.
First observed as the electrical energy is converted into mechanical through the electric motor that spins the shaft.
Then distinguishes itself as the circular movement was transformed into linear through a very simple system of cams, which I have built on some small wood discs, these were located in alternately eccentric and outdated one another 180 °
After cutting the small wooden blocks to the extent appropriate and otorgándo to them a gentle slope downward at its top, consegumos that the balls go up by the climber until the upper zone, is where the energy potential is highest.
Finally in the bottom of this guide is awaiting a ball, that being impacted by the decline reaching moves by climbing upward in the guide. It was evident in this clash the principle of action and reaction, the inertia, losses in the form of heat, friction, energy conservation laws and many more.
Of course, to leave the electric motor connected are repeated in successive cycles, giving a nice effect.
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Wow, thank you Laura!
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I've seen a similar mechanism used in a few automata. In particular, this Dragon Automaton comes to mind...
http://store.animated-woodcraft.com/dragonballs.html
It's cool to see the mechanism in detail in the video you posted.
Regards,
Dug North
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This gismo is old- there's a working one on the ceiling of Etta's Deli in Madison Wisconsin.
http://www.ellas-deli.com/displays.php
It's on the ceiling, where the sandwiches are made, and is part of a huge maze that keep billiard balls in constant motion.
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Here is a fantastic list of different rolling ball machine mechanisms-- including this one-- each with little animations explaining the workings:
http://www.kugelbahn.info/deutsch/haupt/rauf.html
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If you look at how the balls move, you will notices that this very same mechicnisim is inside every single retractable pin that clicks.
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when he worked making conveyor lines. There was one called a "Shuffalo" (think shuffle + buffalo) that would take a loose bin of fruit, raise them up several feet. and also line them up into the squeezers. It was a very efficient sorting system.
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If you ever need translating something like this again, just ask me, I'm Chilean (Chile is to the west of Argentina).
I'll be willing to help ;-)
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I was going to translate it, that is what happens when you unstick from make for a few hours.
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