Ask the experts at scienttific american

http://www.sciam.com/askexpert_directory.cfm

An interesting avenue for the curious and perhaps the annoying.

>> Sunday, March 26, 2006 2:39:28 PM - Comments by satya

.. or send it by email to experts@sciam.com. Please include your name, general location, and email address. Questions may be edited for clarity. Because of the sizeable number of queries received, we cannot reply to individuals. Rather, the most interesting exchanges will be posted on this site.