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 51 
 on: September 24, 2021, 03:18:57 PM 
Started by Iacopo - Last post by BillW
Tell us now who that other suspect is! Or I will make sure judge ta0 won't allow you the extra time you need  to prepare submittal!

Imbalance.

 52 
 on: September 24, 2021, 03:14:35 PM 
Started by Iacopo - Last post by ortwin
I plan to submit evidence that points to another suspect, but need time to prepare for that submittal.
Tell us now who that other suspect is! Or I will make sure judge ta0 won't allow you the extra time you need  to prepare submittal!

 53 
 on: September 24, 2021, 03:12:39 PM 
Started by BillW - Last post by BillW


You mean it might not be my fault? I assumed I was the guilty party.

 54 
 on: September 24, 2021, 03:04:33 PM 
Started by Iacopo - Last post by BillW
...a further piece of the puzzle that is pointing to the ruthless Mr. Edgar Current as the criminal subject that inflicted that much drag on a poor unsuspecting  top spinning happily in a healthy vacuum!
I love it!
OK, now that we have our teeth into Mt. Edgar Current, we can't let go.
As you and Iacopo have made clear, " the 80 g curve/value is the one that differs by far the most from what we expect". Yes, for sure. I plan to submit evidence that points to another suspect, but need time to prepare for that submittal.
There exists a more extreme example of difference in evidence submitted by Sig Simonelli and that submitted by Mr Wells. One set of data indicates a weight/friction ratio of 10, the other a weight/friction ratio approximately 1.3.   Both parties should have used the technically correct term of "FORCE/friction, but the results are the same. 

 55 
 on: September 24, 2021, 03:00:03 PM 
Started by BillW - Last post by ortwin
And here are screenshots of what I see at those numbers:
 
 
 Maybe a third person  (ta0 ?)should look into this to identify the problem.

 56 
 on: September 24, 2021, 02:48:59 PM 
Started by ta0 - Last post by ta0
In the case of the disk top (if it was one) it makes sense to have a separate shaft.
In the case of the dice top, if you want to spin it with the fingers you just make a bulb on the crown, no need for a thin stem. As Jeremy said, you generally don't want long spin times.
This last argument also goes against the stick and string idea, although probably it wouldn't spin very long even if started fast. Anyway, I would also be highly skeptical of this possibility.

Lambert's description says stone. If it was a hardened ceramic, the hole could have been a manufacturing aid. But if it's made of stone, somebody worked hard to make a perfect round hole on the crown.

 57 
 on: September 24, 2021, 02:30:10 PM 
Started by BillW - Last post by BillW
Moderator's Note: I moved these messages out of the original thread to make that one more readable.
===============================================================

I think something went wrong somewhere with those reply numbers ....... .
Just addressing the reply number issue here, so I understand and get it right. I copied the headings that I see on the Tip Friction topic.

Reply #122 is meant to be the following, which shows video of my top under a drill press :
Re: Tip friction and air drag measurements
« Reply #122 on: September 22, 2021, 01:40:49 PM »

And reply 127 is this, which is Iacppo's test of off-center magnet on a metal top:
Re: Tip friction and air drag measurements
« Reply #127 on: September 22, 2021, 04:06:59 PM »

 58 
 on: September 24, 2021, 02:17:06 PM 
Started by ta0 - Last post by ortwin
...
Because if you are going to put a permanent stem, it would have been logical to sculpt it on the stone and not put a wooden stem on it. At least, that's my thinking.
This one we discussed earlier clearly had the hole for some stick -if it was ever used as a top.

 59 
 on: September 24, 2021, 02:03:20 PM 
Started by Hydrona - Last post by BillW
You made those flutes? 

Yes, I made them. One of my passions is woodturning. But music is still something I will have to learn. I thought if I made a flute, I would learn to play it. Haven't done the second part yet. I gave one of the flutes to my wife as a Christmas present, she is mucically gifted.

 60 
 on: September 24, 2021, 01:35:30 PM 
Started by ta0 - Last post by Jeremy McCreary
But ta0, why do you not mention the obvious? That hole could be simply used to stick a toothpick like stem as a starter into the stone.
Because if you are going to put a permanent stem, it would have been logical to sculpt it on the stone and not put a wooden stem on it. At least, that's my thinking.

Respectfully disagree. For starters, a thin stone stem would be subject to breakage during both carving and play.

An easily replaced lightweight wooden stem might also improve release speed via better grip. And it would surely reduce critical speed -- which the makers might have had some inkling of from experience alone. Simonelli tops take full advantage of these things.

However, the last thing you want in a gambling top is long spin time, as it slows the pace of the game. Learned that the hard way by making my own gambling tops and some games to go with them.

So maybe these teetotums didn't need stems to begin with.

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