Good example. I used to calculate the 'increase of diameter' of
a band placed around the world. It was set up to put a tight belt
and then add a 12" extension of the band. Question - how high would
the belt rise over the earth... ?
Lesson - just leave a little room for wood expansion.
On 4/5/2014 3:45 PM, woodchucker wrote:
I recall that question. I never could really believe the answer that came
with it. For perspective on the answer that I heard I compared the result
of adding 12" to a man's belt. Oddly the earth answer was greater than the
mans belt example. I highly suspect that the earth answer that I heard was
missing some digits to the right of the decimal point.
Basically you are adding 1/12,672,000 to the diameter in the earth example.
Diameter and circumference are linearly related.
You add 1 to diameter, you add pi to circumference.
You add 12 to circumference, you add 12/pi to diameter.
That's about 4", 2" on each side of the planet.
I've heard the claim that it is some huge difference, but never
seen anyone show their work.
HomeOwnersHub.com is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here.
All logos and trade names are the property of their respective owners.