Welcome. Please log in or register.

Share

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 Sky is Falling

Sun, 06/01/2008 - 01:00 -- Hal Harris

How likely is it that an asteroid or a comet of significant size will impact the earth, and what would be the consequences? It is now widely accepted that the dinosaurs were wiped out by such an event, and recent research suggests that previous estimates of the number of asteroid impacts may have been much too low.

Hal Harris's picture

The Ten Most Beautiful Experiments

Thu, 05/01/2008 - 01:00 -- Hal Harris

Lists of "the best" movies, books, sports stars, American Idols, etc. etc. are often intriguing and controversial. Science has its own lists, be they Nobelists or most-cited publications. Just a little while ago (could it really have been November, 2005?) Philip Ball's list of "elegant" chemistry experiments was my choice of the month.

Hal Harris's picture

Gusher of Lies: The Dangerous Delusions of 'Energy Independence'

Tue, 04/01/2008 - 01:00 -- Hal Harris

Robert Bryce is a respected commentator on the energy industry. He writes for Atlantic Monthly, the Guardian and The Nation, and he has written books about Enron and about the oil industry in Texas. In "Gusher of Lies", he confronts politicians and entrepeneurs who claim that the United States should/could become "energy independent" at any time in the forseeable future.

Hal Harris's picture

Present at the Future: From Evolution to Nanotechnology, Candid and Controversial Conversations on Science and Nature

Fri, 02/01/2008 - 00:00 -- Hal Harris

You know Ira Flatow as host of Science Friday on NPR. I don't often get to listen "live" because the broadcasts occur while I am (supposed to be) working, but I subscribe to the podcasts and catch up on them later from an RSS feed.

Hal Harris's picture

The Copernican Myths

Sun, 12/02/2007 - 01:00 -- Hal Harris

When asked by one of our students about the significance of Nicolaus Copernicus (1473-1543) and his revolutionary (pun intended) theory of the solar system, most of us would recite the folkloric tale. A brilliant astronomer, dissatisfied with the inaccuracies of Ptolemy, devised a completely new model for the solar system.

Hal Harris's picture

Special Issue: Water, The Wellspring of Life

Fri, 11/02/2007 - 02:00 -- Hal Harris

"Whiskey is for drinkin', water is for fightin'" goes the old saying. The current (November, 2007) issue of Natural History has nine articles about what we will be fighting over. "A Special Brew", by Christopher Mundy, Shawn Kathmann, and Gregory Schenter is the one that is most "chemical", but the others describe some environmental aspects of water resources.

Pages