My original video, incorrect in length, was uploaded by a different user (firstname.lastname@example.org)and needs to be deleted. This new video is the correct version.
VIDEO BY: JoannWest Scranton High School
VIDEO BY: KatherineAdams Central HS
VIDEO BY: KatrinaRobert F. Kennedy HS
Comments are closed.
Beam Source, ca. 1985
©2010–2015 Chemical Heritage Foundation