Faraday Christmas Lectures
Rose City Book Pub 1329 NE Fremont, PortlandA series of 5-10 minute talks on topics relating in any way to the winter holidays. Topics are broad, guidance is thin. If you would like to be put on the list as a speaker, please provide a title and contact information at bookpubpdx@gmail.com. https://en.wikipedia.org/wiki/Royal_Institution_Christmas_Lectures
Free