Fletcher wrote:That's enough time for the human ear to distinguish separate discreet sounds & not have them run together.
I tried this during an idle moment. Look at your watch and count the seconds aloud. They're don't run as fast as you might think. Then double the speed by counting one, one, two two etc, then double it again so, one,one,one,one; two,two,two two etc . Its not difficult to say it so if you can do that you can distinguish the separate sounds. Of course that is four hits per second whereas Bessler's wheel achieved 3.5 hits per second.
If you select 160 beats per minute you'll hear Bessler's largest wheel turning under load at 20RPM. Selecting 208 beats per minute will sound like the same wheel running unloaded at 26RPM.
I was wondering what type of timepieces were common during Bessler's time. I knew early pocket watches did not have second hands. Second hands consume energy and required winding more often. The duplex escapement (makes the second hand jump each second) was invented around 1730. It tended to wear out quickly and never bacame popular until the early 1800's.
So it is quite probable that an observer of Bessler's wheel would have had a watch without a second hand. So the observed speed measurement would have been only approximate.
Has anybody built anything like this?
I do not want to built something that someone has already proven it does not work.
Please chek it out and let me know what you thing.
Has anybody built anything like this?
I do not want to built something that someone has already proven it does not work.
Please chek it out and let me know what you thing.
Thanks
Turulato
This wheel looks like the same principle as an electric motor running a generator which in turn runs the electric motor. Doesn't look workable to me. I don't know what the other opinions are.
Turulato, yes, I am building something similar. I decided to simplify it by not using a spring and jacks. It is similar to MT48 & MT49 on Bill's site http://www.orffyre.com/mt41-60.html
Turulato, I can't quite make out all the details of that device, but it looks as if it is like Jan Rutkowski's. He claims that it works, but I've never seen proof. Here's an animation I made of my variant of his device.
Jim, I seem to remember reading somewhere that they estimated the time with their pulse, but I can't find a reference.
Great animation Jonathan, I hadn't seen it before. I hope you don't mind, I added it to your post above. To me your animation shows the "working" principle of Jan's idea much more clearly than his original animation. And in my humble opinion it is actually a non-working principle.
Not at all. I wasn't sure if I'd posted it before, and rather than searching I just linked to the ASTRO site where I remembered posting it. In my rare communications with Jan, he said that the nonlinear paths that the weights follow in his device are key, I didn't understand why. One time he sent me a variation of his design which he assured me I would find worked if I made an animation. I don't remember the circumstances of his sending me this design, so I shouldn't say anything specifically, but the complex trajectories of many pieces were just too much for me to animate. In the end I doubted I would be able to glean anything from an animation because all the curves make it hard to just look and see, unlike the above.
Attached is another of my variants, where the weights follow semicircles. It too doesn't work, and is also posted at the ASTRO site (explaination there).
Attachments
Disclaimer: I reserve the right not to know what I'm talking about and not to mention this possibility in my posts. This disclaimer also applies to sentences I claim are quotes from anybody, including me.
Thank you etjoe, you are the only one that replied without bias. Jonathan and Scott spoke with what they "believe" or "in their opinion" which is a far cry from "I BUILT AND IT DOES NOT WORK."
Although I have to thank Jonathan for his animations it really simplified the principle, thank you Jonathan!
etjoe; let us know how it turns out. How far along are you in finishing it up?
Turulato, you're welcome.
Now that everyone knows why I'm cutting a wheel out of 3/4" MDF to make it a pulley will understand why. I couldn't figure out a way to simulate this on WM2D so I have to build it. The principle is simple, use leverage to lift 4 times a single weight as seen in Jonathan's pulley_ani.gif
If you don't mind waiting, I will continue to try to build a working version and keep you guys posted.
If you select 160 beats per minute you'll hear Bessler's largest wheel turning under load at 20RPM. Selecting 208 beats per minute will sound like the same wheel running unloaded at 26RPM.
Hi Robert here is a previous post from ovyyus. You might find it of interest.
Graham
I am a lover of Humanity, It's people I can't stand.
