Picks

ChemEd X contributors and staff members are continually coming across items of interest that they feel others may wish to know about. Picks include, but need not be limited to, books, magazines, journals, articles, apps—most anything that has a link to it can qualify.

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by Hal Harris
Thu, 04/01/2010 - 01:00

Robert Boyle is known to most chemists solely for his Law relating the pressure and volume of a gas, but this privileged son of the Earl of Cork was not as interested in discovering an equation as he was in determining what his experiments could tell him about his own relationship to God.

Recent activity: 2 years 1 week ago
by Hal Harris
Tue, 03/02/2010 - 01:00

There was a time when it was possible to estimate the size of the total US thermonuclear arsenal by measuring the ratio of Li-6 to Li-7 in commercial sources and knowing the amount of the metal in the economy. (Li-6 had been removed to make hydrogen bombs.) Now the lightest metal is prominent in other kinds of energy schemes.

Recent activity: 2 years 4 days ago
by Hal Harris
Mon, 03/01/2010 - 00:00

Could it be possible that much of the education "reform" that everybody seems to be seeking might be accomplished through teaching teachers how to use a toolbox of effective classroom management techniques?

Recent activity: 2 years 4 days ago
by Hal Harris
Mon, 02/01/2010 - 00:00

Chemistry is a beautiful subject. Beyond the intellectual satisfaction of finding out how things work, there is also aesthetic reward in an optically-active crystal viewed in polarized light, a colorful reaction, or even scientific glassware.

Recent activity: 2 years 4 days ago
by Hal Harris
Sat, 01/02/2010 - 01:00

One of the most memorable lectures I have ever experienced was given by Nobelist Willard Libby. He spoke at University of California, Irvine in 1968 or 1969, but the essence of his talk about the atmosphere of Venus is still fresh in my mind because he told such an engaging, entertaining story.

Recent activity: 2 years 4 days ago
by Hal Harris
Fri, 01/01/2010 - 00:00

The world has never more needed public understanding of science than it does now, and those of us in science education have a special obligation in this regard. The answers to health care, climate change, conservation of the environment, and so forth are not going to be found in science alone, but if they are to be addressed rationally, science literacy will be necessary.

Recent activity: 1 year 12 months ago
by Hal Harris
Wed, 12/02/2009 - 01:00

Imagine a highly reliable cancer test. It detects 95% of a certain type of cancer, and has a "false positive" rate of only 1%. This test is used on a population in which this type of cancer occurs in 0.5%. One day your doctor tells you that you have tested positive. What is the chance that you are actually sick? Surprisingly, it is only about 32 percent!

Recent activity: 2 years 4 days ago
by Hal Harris
Tue, 12/01/2009 - 00:00

Isaac Newton was a complex man. Every student learns of (but few master) the laws bearing his name that govern the motion of objects from bullets to planets. Many know that the same great mind invented calculus along the way toward his Principia Mathematica.

Recent activity: 2 years 4 days ago
by Hal Harris
Sun, 11/01/2009 - 01:00

One part (but only one part) of the decline in science in the US is the growing minority of citizens who semiautomatically adopt positions antagonistic to those of the scientific consensus, regardless of the issue. The "scientific community" is not a monolith, and skepticism and dissent are essential to the process of science.

Recent activity: 1 year 12 months ago
by Hal Harris
Thu, 10/01/2009 - 01:00

America's public schools are in trouble, and there are few who would disagree. But despite billions of dollars spent in "reform" efforts, little real progress seems to be occuring. No Child Left Behind (NCLB) was a step (or a misstep, perhaps) toward greater accountability by schools for student achievement.

Recent activity: 2 years 4 days ago