Spin Speed--How fast is fast enough?

[dj-gabriele]

FANTASTICO!

It made me smile to see that sign
I didn't know the bank of Italy / bank of America story! Interesting

 

[passatdoc]

San Francisco historically had a very large Italian community. The Bank of Italy helped the city to rebuild after the 1906 Earthquake.

My hometown of San Diego has a Little Italy but not as large as North Beach. The original immigrants were mostly fisherman di Napoli.

There is still a church there con missa en italiano la dominica primera della messa. (black dresses not included).

Our Lady of the Rosary San Diego, CA

Our Lady of the Rosary San Diego, CA - Home page

www.olrsd.org

http://www.olrsd.org/services.php#

They have saints in glass boxes, just like in Italy!

http://www.littleitalysd.com/splash/index.asp

 

[dj-gabriele]

Oh my! I have yet to see a saint in a glass bottle!

 

[suburbanmd]

centrifugal force

PassatDoc, centrifugal force varies proportionally to the radius, not the square of the radius. Look at it this way: The basic formula for centripetal force is

(m * v**2) / r

where v is the velocity along the circle, and r is the radius. For a constant RPM, v varies proportionally with the radius, so v**2 varies as the square of the radius. But there's also an r in the denominator, so the result varies proportionally with the radius.