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JCE ChemEd Xchange provides a place for sharing information and opinions. Currently, articles, blogs and reading lists from ChemEd X contributors are listed below. We plan to include other items that the community wishes to share through their contributions to ChemEd X.

Hal Harris's picture

The Martian Chronicles: New Discoveries on the Red Planet, by Burkhard Bilger

Thu, 05/16/2013 - 15:10 -- Hal Harris

One could argue that the technological triumphs embodied in our robotic explorations of Mars far exceed those that put men on the moon.  Missing, however, is the drama of putting human life at risk, and the ease with which our imagination can put us in the shoes of the explorer. That is not to say that there is not a human element.

Tom Kuntzleman's picture

Hydrophobic vs. Hydrophilic, Polar vs. Non-polar

Mon, 05/13/2013 - 20:47 -- Tom Kuntzleman

Wow! A very neat experiment, called “Hydroglyphics”, published by Kim, Alvarenga, Aizenberg, and Sleeper in the Journal of Chemical Education allows you to transform a common plastic Petri dish into a unique teaching tool to demonstrate the difference between hydrophobic and hydrophilic surfaces. Check it out in the video.

Hal Harris's picture

Climate Change Denial in the Classroom

Sat, 05/04/2013 - 23:40 -- Hal Harris

Universities should be and are expected to be sources of truthful and unbiased information about controversial subjects, especially in the sciences.  Unfortunately, that is not always the case.  Instructors at Carleton University in Ottawa, Canada used "academic freedom" to present an egregiously biased and unscientific course that misrepresented the facts of climate change.

Tom Kuntzleman's picture

Fun with M & M's

Sat, 05/04/2013 - 06:35 -- Tom Kuntzleman

I came across a simple, yet interesting experiment that was first described by Elizabeth Sumner Walter in 2001. She merely had students pour water into a dish containing some Gobstoppers candies. I showed this experiment to some of my college chemistry students while they were working on a different laboratory experiment.

Hal Harris's picture

Life's Ratchet: How Molecular Machines Extract Order From Chaos

Tue, 04/30/2013 - 21:09 -- Hal Harris

Peter Hoffman is a physicist and materials scientist, and he brings those perspectives and sensibilities to the description of how life converts chemical energy into order and motion.  The "Ratchet" in the title is Feynman's Ratchet, a gedanken experiment described in Feynman's "Lectures on Physics" and reminiscent of Maxwell's Demon.

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