Mathematicians know pi, 

the ratio of the circumference of a circle to its diameter:


The wine industry knows WinePi, 

the number of gallons of wine in a case:



Wine Bankruptcy Bingo


This is the home site for Mike Von der Porten,

the WinePi Guy.


Links to pages...

State Park Special Event Permits

Analy High School 1964

Imperial Valley Geothermal Plant Scrapbook 1980

Southern Pacific History 1931

California Budget Graph



SCRA- Sonoma County Radio Amateurs - Short Skip history


2-meter CPVC tape measure antenna


Ironstone Vineyards


Central California Traction Company


Dave & Bill Hike


Sir Francis Drake in California


Eric Von der Porten


Saryl Von der Porten


Proctor Terrace


Club Med Ixtapa Mexico


Santa Rosa Pedestrian Parity


Free Snoopy


This American Life - Crackpot


SIRARC - Sons In Retirement Amateur Radio Club


Shell Oil


No License No Drive


West Virginia 2011


Russian River Community Blood Bank


Walking directions to Best Western Iwo Jima / Arlington, VA


Luther Burbank


Disneyland 2013