Uncategorized
- Earth
Ancient hot spell is linked to copious carbon dioxide
A mineral that formed in some lakes during a lengthy and particularly warm period in Earth's past suggests that atmospheric concentrations of carbon dioxide were at that time at least triple those found in today's air.
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Reading this article prompted me to consider the biological significance of fever and our impulse to reduce it when given the choice. Isn’t it possible that an increase in cancer incidence could be related to the prevalence of fever-reducing medications or the overall reduction in illnesses that cause fever? Wendy GordonAustin, Texas
- Health & Medicine
Warming Up to Hyperthermia
By notching up a tumor's temperature a few degrees, scientists are boosting the power of radiation, chemotherapy, and cancer vaccines.
- Astronomy
Enigmatic Eruption
An erupting star near the outskirts of the Milky Way has become one of the most puzzling objects in the galaxy.
- Planetary Science
Web Special: Welcome to Mars’ Victoria Crater
With stunningly powerful vision, the HiRISE camera on NASA's Mars Reconnaissance Orbiter has taken a remarkable picture that shows the exploration rover Opportunity poised on the rim of Victoria Crater on Mars.
- Humans
From the October 3, 1936, issue
Testing concrete columns, life in the Dead Sea, and watching enzymes at work.
- Humans
Learning about Engineering
This site, created by biomedical engineer Celeste Baine of Eugene, Ore., offers material and access to resources to help motivate teachers, counselors, and students to learn about and consider pursuing careers in engineering. Go to: http://www.engineeringedu.com/
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Wasting Deer: Deer saliva and blood can carry prions
Saliva alone can transmit a brain-destroying disease from one animal to another.
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It is ironic that the father of the current recipient of the Nobel Prize in Chemistry won the prize in medicine. Looking at the research of 2006 winner Roger D. Kornberg, his prize should have been awarded in medicine. For his father, Arthur Kornberg, the prize in 1959 should have been in chemistry. The good […]
- Humans
Nobel prizes recognize things great and small
The 2006 Nobel prizes in the sciences were announced this week, and all five winners are U.S. scientists.
- Math
The Eclipse That Saved Columbus
An eclipse prediction in a book of astronomical tables helped Columbus out of a jam.
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19739
The explanation in this article for the increased ocean-surface temperature seemed to focus solely on atmospheric effects. I wonder if variations in undersea volcanism might have contributed to the sudden spike in Pacific Ocean surface temperatures during the Aptian epoch of the Cretaceous period. If so, then a moderately higher release of volcanic ash might […]
