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Author Topic: Spinners from Ohio  (Read 6211 times)

johnm

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Re: Spinners from Ohio
« Reply #15 on: September 03, 2009, 09:59:52 PM »

The big top Bryan is using is hollow plywood with a bearing tip.  It is about 10.5 inches tall overall and 9.75 inches diameter since the lathe has 10" max diameter capacity.  Its is an unconventional shape because I really didn't know what I was doing last year.  I had intended for it to be a physics demonstration so people could sense the inertia by holding it as it spins since our bicycle wheel for that purpose is a little large for many people.  I painted two big RIDDLER question marks (from Batman) on a green background hoping it would encourage questions (and I like the 'spiral' of that mark).  Instead, I've made a smaller top about the size of Mike's Preacher top (6.5 tall by 5.5 dia.) mounted with bearings to a PVC pipe handle with a 'barber pole' type spiral which is easier to see from the back of a classroom.
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johnm

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Re: Spinners from Ohio
« Reply #16 on: September 03, 2009, 10:05:20 PM »

Jorge is right.  This is driving me crazy!!!  How long has all this been going on in Cincinnati and I knew nothing about it? 

Have you heard about our top festival in Miamisburg (just to the west of the Dayton Mall - exit #44 on I 71)?  We have had it the fourth Saturday of August for the past ten years but we would move it if we could get you all to come up!
Sorry, Mike.  As an avid lurker of the board, I knew the festival was on but things didn't pan out for us this year. :(
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hemingsoft

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Re: Spinners from Ohio
« Reply #17 on: September 03, 2009, 11:38:21 PM »

Sorry, Mike.  As an avid lurker of the board, I knew the festival was on but things didn't pan out for us this year. :(

Yes, the wife had other plans for me that evening.  I told her I wanted to go though.
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poptop

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Re: Spinners from Ohio
« Reply #18 on: September 04, 2009, 12:27:06 AM »

Glad to see you guys show up!  I wish I was a little closer, I'd be right there with Mike wanting to come for a visit.

Don't apologize for scoring the last of the QS's--they needed to be bought up so more would be made!  Besides you got them fair & square.  Totally legit...

Maybee with a bunch of physics folks here, we could get a little lesson on "momment of inertia" for dummies and have a little chat about what makes for ideal spin top design.

Welcome!
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ta0

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Re: Spinners from Ohio
« Reply #19 on: September 04, 2009, 09:44:08 AM »

Welcome John and the rest of the gang! We are so glad you are here! (and in Mike's case that you are there!)

That big top is in the same league as the ones Alan and Eric make! The tradition here is to give them a name. "Newton" sounds good.  "Coriolis"? "Schrödinger's Cat"? (probably not)

The smaller one even has the Figaro stripes! ;D So, the handle is on the crown? Could you post a picture, perhaps?

I feel very flattered that you may use the spintop induction motor in your demonstrations.  I think it is a pretty neat demo. If you have the magnet and the tops it can be assembled in seconds (and disassembled to get back to playing with the tops  :)).

« Last Edit: September 04, 2009, 09:46:24 AM by ta0 »
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johnm

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Re: Spinners from Ohio
« Reply #20 on: September 04, 2009, 04:44:50 PM »


That big top is in the same league as the ones Alan and Eric make! The tradition here is to give them a name. "Newton" sounds good.  "Coriolis"? "Schrödinger's Cat"? (probably not)

The big green top is named the Riddler.


The smaller one even has the Figaro stripes! ;D So, the handle is on the crown? Could you post a picture, perhaps?


Here's a picture of the lecture demo top on a handle.  The handle replaces a normal tip and the cord is wound the same way.  The stripes are black and red to support the UC colors.



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Pulp

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Re: Spinners from Ohio
« Reply #21 on: September 06, 2009, 05:06:27 PM »

Wow!
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the Earl of Whirl

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Re: Spinners from Ohio
« Reply #22 on: September 07, 2009, 09:25:17 PM »

My calendar looks clear for Tuesday late morning (tomorrow 9/8 - day after Labor Day).  I'm willing to take the chance and drive down after I run some errands.  I hope to catch some people before lunch and maybe during lunch or right after.  I have no idea what everyone's schedule looks like but I have the time off and want to meet this treasure trove of top spinners at U.C.!!!

I'm going to be lurking around the first floor of the physics/geology building sometime after 10 or 11 am.
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hemingsoft

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Re: Spinners from Ohio
« Reply #23 on: September 07, 2009, 10:26:55 PM »

My calendar looks clear for Tuesday late morning (tomorrow 9/8 - day after Labor Day).  I'm willing to take the chance and drive down after I run some errands.  I hope to catch some people before lunch and maybe during lunch or right after.  I have no idea what everyone's schedule looks like but I have the time off and want to meet this treasure trove of top spinners at U.C.!!!

I'm going to be lurking around the first floor of the physics/geology building sometime after 10 or 11 am.

Not to speak for everyone, but I will be in then.  Be sure to check Geo-Phys 101/102.   ;)

I'll make sure to leave myself labwork  then and not be out.
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johnm

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Re: Spinners from Ohio
« Reply #24 on: September 08, 2009, 06:39:42 AM »

Nice!!
And perhaps good timing as at least one of the local weather people predicts rain later in the day.
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the Earl of Whirl

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Re: Spinners from Ohio
« Reply #25 on: September 08, 2009, 08:40:27 AM »

Gr8!!!  I'll be there soon.
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the Earl of Whirl

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Re: Spinners from Ohio
« Reply #26 on: November 12, 2014, 06:51:27 PM »

Ha!  I was looking up science fairs and ran across this historic thread.  I see that in my 100th post and I said:
"This is my 100th post and it would be a very significant one if it means I get to know some other Ohio top spinners?  Where are you from, physboy2357?"

And from there I met johnm and others.  It certainly was a significant post!!!
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