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Hi Kathy.
This is really intriguing but I'm not sure I totally get it. Could you send
a photo?
Thanks!
~Alli
On Tue, Jul 23, 2013 at 3:14 PM, Kathy Krafft <[log in to unmask]>wrote:
> ISEN-ASTC-L is a service of the Association of Science-Technology Centers
> Incorporated, a worldwide network of science museums and related
> institutions.
> ****************************************************************
> *****************
>
> This is a lot of fun. I have a photo of our version if anyone wants to
> email me offline-- it had two marbles, one on each side of a center post,
> so if you tip it to get one marble in place, then the other one falls off
> its ledge. But if you set it down on the table and spin it, both marbles
> go right up to the two ledges at the opposite ends of the parabola. It's
> fun to watch folks try- I saw mathematicians take 15 minutes (overanalyze?)
> and our janitor got it right away.
>
> I made a bunch for holiday gifts for relatives one year which was a big
> hit- many went to workplaces to be sprung on their colleagues.
>
> Kathy Krafft
> Traveling Exhibitions Curator
> Sciencenter
> Ithaca, NY
>
>
>
> On 7/23/2013 2:17 PM, Cricket Brooks wrote:
>
>> ISEN-ASTC-L is a service of the Association of Science-Technology Centers
>> Incorporated, a worldwide network of science museums and related
>> institutions.
>> ****************************************************************
>> *****************
>>
>> I once made a little hand-held game that involved a marble and a
>> parabola-shaped ramp with little notched out "resting spots" in it,
>> all sandwiched within a rectangular box of acrylic. No matter how you
>> shook the box or tipped it back and forth, the marble would only come
>> to rest within one of the notches if you spun the whole unit around
>> just so. It's hard to explain, but easy to understand if you see it.
>> I'll try to find a photo to send you if you're interested, and if you
>> are able to fabricate something like this for your program. It held
>> people's attention, especially once they saw someone succeed. Even
>> knowing the secret, it took several tries to make it work. And people
>> couldn't quite believe they couldn't replicate the success with a
>> tipping rather than a spinning motion, so they tried over and over
>> again..
>>
>> Cricket
>>
>>
>> On Tue, Jul 23, 2013 at 11:26 AM, Allison Feigen <[log in to unmask]>
>> wrote:
>>
>>> ISEN-ASTC-L is a service of the Association of Science-Technology Centers
>>> Incorporated, a worldwide network of science museums and related
>>> institutions.
>>> ****************************************************************
>>> *****************
>>>
>>> Hello,
>>>
>>> I'm looking for some simple, low mess experiments I can do at a family
>>> program that demonstrate the properties of spinning. I'm planning to do
>>> salad spinner spin art; I tried steve spangler's chromotography
>>> experiment
>>> with little success. Does anyone have any suggestions?
>>>
>>> Thanks!
>>> ~Alli Feigen
>>> Education Manager
>>> The New England Carousel Museum
>>>
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>> For information about the Association of Science-Technology Centers and
>> the Informal Science Education Network please visit www.astc.org.
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>> www.exhibitfiles.org.
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>
> ****************************************************************
> ***********
> For information about the Association of Science-Technology Centers and
> the Informal Science Education Network please visit www.astc.org.
>
> Check out the latest case studies and reviews on ExhibitFiles at
> www.exhibitfiles.org.
>
> The ISEN-ASTC-L email list is powered by LISTSERVR software from L-Soft.
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--
*Allison Feigen*
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