Education For All

www.edforall.net

Text size
  • Increase font size
  • Default font size
  • Decrease font size

Lectures (Video)

Course Home

Introductory Organic Chemistry - Lecture 4

Get the Flash Player to view video.
Lecture 4 - Coping with Smallness and Scanning Probe Microscopy

This lecture asks whether it is possible to confirm the reality of bonds by seeing or feeling them. It first describes the work of "clairvoyant" charlatans from the beginning of the twentieth century, who claimed to "see" details of atomic and molecular structure, in order to discuss proper bases for scientific belief. It then shows that the molecular scale is not inconceivably small, and that Newton and Franklin performed simple experiments that measure such small distances. In the last 25 years various realizations of Scanning Probe Microscopy have enabled chemists to "feel" individual molecules and atoms, but not bonds.

Prof. J. Michael McBride
CHEM 125: Freshman Organic Chemistry, Fall 2008
(Yale University: Open Yale)
http://oyc.yale.edu
Date accessed: 2009-11-11
License: Creative Commons BY-NC-SA

Lecture Material

Click the play button to start the slideshow above (the slides will be displayed for 10 sec before advancing to the next slide). You can navigate the slides manually by using the back and forward buttons. Clicking the slide itself will advance to the next slide.

To download the above lecture material use this link. (Right-click and select Save Target As or Save Link As.)

Supplementary lecture material is listed below.

1. Scanning Probe Microscopy webpage



 

Translate

Chinese (Simplified) French German Italian Japanese Korean Portuguese Russian Spanish
More educational resources: