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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 Sun in the Church

Wed, 09/01/1999 - 01:00 -- Hal Harris

In "The Sun in the Church", J. L. Heilbron describes the practical problem that faced the Church, in determining when Easter should be celebrated (the first Sunday after the first full moon after the vernal equinox) and how it supported research to resolve that matter (and also the problem of a church year that didn't match the solar one) without quite conceding that the earth orbits the sun.

Hal Harris's picture

The Endurance: Shackleton's Legendary Antarctic Expedition

Sun, 08/01/1999 - 01:00 -- Hal Harris

This year's exhibit at the American Museum of Natural History of artifacts from the 1915 scientific expedition to Antarctica led by Sir Ernest Shackleton has been accompanied by the publication of Caroline Alexander's book, which includes the documenting photographs of Frank Hurley (some of which could be seen on the Museum's Web site).

Hal Harris's picture

How to Predict Everything

Thu, 07/01/1999 - 01:00 -- Hal Harris

Physicist J. Richard Gott of Princeton published a provocative article in Nature back in 1993, that described a simple method for the estimation of the likely lifetime of "things" on the basis solely of the length of their existence to date.

Hal Harris's picture

Traces of the Past: Unraveling the Secrets of Archaeology Through Chemistry

Sat, 05/01/1999 - 01:00 -- Hal Harris

The reach of analytical chemistry is amazing even to chemists! Joseph Lambert, a Professor of analytical chemistry at Northwestern University describes in this fascinating book how chemistry is used to study stone, glass, pottery, organic materials, metals, and human remains.

Hal Harris's picture

Profile: The Lord of the Flies

Fri, 04/02/1999 - 01:00 -- Hal Harris

Seymour Benzer sounds like a biologist to whom I would enjoy talking about science. He came to his present research interests after a good start to a career in physics, and after avoiding biology courses at Brooklyn College because they were too much like natural history and with too little deductive science.

Hal Harris's picture

The Search for Superstrings, Symmetry, and the Theory of Everything

Mon, 03/01/1999 - 00:00 -- Hal Harris

For most of us chemists, our knowledge of the universe is pretty good from the atomic level upward, but when students ask us (as they sometimes do) about what it is that holds the nucleus together, or what a "string" is, or about quarks, leptons, and any of the other particles that are not electrons, protons, or neutrons, we begin to mumble.

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