SCIENCE FILE / An exploration of issues and trends affecting science, medicine and the environment

Enter the Invention Dimension, a Web site at https://web.mit.edu/invent/ devoted to American inventors. The Inventor of the Week section has featured Leo Baekeland (plastic), Charles Townes (the laser) and Roy Plunkett (Teflon), as well as their more famous colleagues Eli Whitney, Ben Franklin and Alexander Graham Bell.