PopularScience is the term used to talk about science bundled for presentation to the public. There are many of these given in the UK, see
http://www.simonsingh.com or
http://www.mathsinspiration.com for examples. The speakers (including myself) are often subversives - their objective is to instill in an unsuspecting audience an appreciation of the methods and processes in science, but it's disguised under a veneer of street theater style entertainment.
For what age range is the subversive style most effective?
See also
PopularMechanics
More generally understood to be the names of two magazines published for the
GeneralPublic, formatted and authored in a style understandable by those who have little formal, disciplined scientific or mechanical training. --
AnonymousOnPurpose
Are there any other
WikiZens willing to admit to giving popular lectures?