More than once in the past year and a half, newscasts from the sites of fatal coal mine accidents have riveted the nation’s attention. Recently, the New York Times reported on an investigator’s findings that a federal agency failed to conduct required safety inspections in many U.S. coal mines during this time.
We can assume that […]
Archive for the 'Earth Science' Category
Coal Mine Safety: Whose Responsibility?
Wednesday, November 28th, 2007 6:34 pm
Written by: Mary LeFever
Organic Sources of Fuel Don’t Have To Be Fossil Fuels
Wednesday, November 7th, 2007 8:04 am
Written by: Mary LeFever
Will we ever find a suitable, sustainable, and reliable substitute for fossil fuels? Sure, there’s wind, water, or solar power, but these sources are dependent on the conditions of nature and are not always reliable. ScienceDaily reported, on November 3, 2007, that two microbiologists, Rhonda Zeltwanger and Michael Cotta at Washington University in St. […]
Posted in Topics: Biotechnology, Chemistry, Earth Science, Energy Transfer, Methods of Science, Science
Uncertainty in the Science of Climate Change
Wednesday, October 31st, 2007 7:56 pm
Written by: Mary LeFever
Uncertainty in science? Is that normal? Of course it is, and researchers can typically quantify the degree of certainty they hold in their conclusions. For example, a research report might read, “Our data analysis indicates with 95% certainty that X is causing Y.” But some research results are not so linear and one-dimensional as […]
Posted in Topics: Earth Science, Methods of Science, Science
Is ‘The Big One’ Coming?
Thursday, October 18th, 2007 8:02 am
Written by: Mary LeFever
Science Daily reported on Sunday, October 14, that a 3.0 magnitude earthquake hit Israel. This would be hardly worth noting except that two similar earthquakes have been recently recorded in the same area. According to the article, “such seismic activity appears to indicate a more disastrous quake is imminent.” Two scientists recounted the history of […]
Posted in Topics: Earth Science, Earthquakes
An Explosion, a Crater, and a Remote Mountain Locale
Wednesday, September 26th, 2007 8:57 pm
Written by: Mary LeFever
It sounds like the plot of a black-and-white, sci-fi B-movie: Rural residents hear a steadily increasing loud noise that crescendoes into an explosion, after which they find an “object, metallic in nature, created a crater 41 feet in diameter [and 16 feet deep] and produced a seismic shock equivalent to a 1.5-magnitude earthquake. . . […]
Posted in Topics: Earth Science, Energy Transfer
Acid Rain Impacts More Than Just Buildings
Wednesday, September 12th, 2007 3:46 pm
Written by: Kimberly Lightle
Looking for a timely and concise way to integrate the grades 5-8 National Science Education Standards into a study of the impact of acid rain? Read on!
Middle school students have probably heard of “acid rain” and know it to be a bad thing. They might even know it comes from nitrogen and sulfur compounds emitted […]
Posted in Topics: Acid Rain, Earth Science, Education, Life Science, Marine Biology, Science
Posted in Topics: Earth Science, Health, Personal Safety
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