TU-58

[Rod Smallwood]

I say.. come on chaps.. this is not math 101.
Any more suggestions for sources of a bit of rubber tube?

Rod Smallwood



On 02/12/2015 16:13, Tony wrote:
> Mathematically, circumference is PI times diameter or 3.14159..... 
> times the diameter.
>
>
> On 12/2/2015 11:06 AM, Fred Cisin wrote:
>> On Wed, 2 Dec 2015, Paul Koning wrote:
>>> Actually, it's the circumference that matters, not the diameter.
>>
>> I always thought that there was a relatively stable relationship 
>> between those!  :-)
>> Circumference tends to be a little over 3 times the diameter (3.0 in 
>> some states)    :-)
>>
>>> Does the circumference of a rubber roll change significantly when 
>>> you press on it?
>> If it shifts or squeezes out to the sides, not so much.
>> If it compresses, yes.
>>
>> Before TPMS, some cars got a crude estimation of low tire pressure by 
>> comparing the RPM of a tire (ABS sensors) with its fully inflated 
>> brethren.
>> (circumference changing with pressure change)
>>
>>
>>
>