Comment:OK let's see... according to this site, a pinhead has a diameter of 2.1 mm: http://www.challenger.org/tr/ponderquestions.html That would provide a surface area of some 7,070,000 square microns. According to this site, the upper-end of amoebic girth is some 30 microns diameter: http://hypertextbook.com/facts/2001/GennadiyZemel.shtml Thus allowing the amorphous little bugger comfortable residence in an area of some 707 square microns. That would get you about ten thousand amoebae on the head of a pin... something on that order of magnitude, anyway. If I've miscalculated, I'm sure some SITO brainiac will let me know.
Description:This is a page in The Physics Factbook: an encyclopedia of scientific essays written by high school students that can be used by anybody. This may be from the website's own description.
Type is User-suggested (URL pulled from discussions, etc.) and link status is: indexed ok.