All Stories by Science News
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19591
Just curious about the wording in the first paragraph of this article: “Around 36,000 years ago, Neandertals and people lived side by side ….” Were not the Neandertals “people,” and isn’t it true that Neandertals and Cro-Magnons were both Homo sapiens? John Hanson MitchellLincoln, Mass. This is one of the biggest debates in paleoanthropology. Many […]
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19590
Biologist Paul Denny indicates in this article that if the test of the saliva shows that the young patient is at high risk for developing cavities, then extra precautions could be taken such as sealants and fluoride treatments. As a practicing dentist, I wish to point out that both of those procedures are routine with […]
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19589
I have spent the past 30 years as a geoscientist studying the history of Earth and take great exception to a statement in the article: “Scientists are divided on whether climate change, induced by industrial and automotive release of carbon dioxide and other greenhouse gases, is driving these statistics.” This sentence states that there would […]
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***Notice to Subscribers in Areas Affected by Hurricane Katrina***
The U.S. Postal Service has asked magazine publishers to suspend subscription mailings to areas that were damaged by Hurricane Katrina. Science News subscribers in those areas won't be charged for issues that are withheld, and their subscriptions will be extended. Mailings will resume upon notification by the USPS that delivery is reinstated.
- Humans
From the September 7, 1935, issue
Lifelike museum exhibits, a vaccine against the common cold, and the functions of genes.
- Paleontology
Dinosaurs!
The Smithsonian Institution’s dinosaur Web site tells the story of the National Museum of Natural History’s collections, research, and staff. Visitors not only learn about the early history of these well-known dinosaur collections but also get a chance to participate in a virtual dinosaur discovery, click through an interactive “Tree of Life” highlighting milestones in […]
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19588
In this article the mirror image isn’t really a perfect match, is it? It doesn’t itself secrete anything. Also, could the mirror be made to slowly withdraw, thus pulling the fish image away from the real fish in a simulated retreat? Let’s see then if there are any victory-induced hormones released. W. Gregory StewartLos Angeles, […]
- Humans
Letters from the September 10, 2005, issue of Science News
Pennies in heaven? Why slam a copper impactor into Comet Tempel 1 (“A Grand Slam: In a winning move, NASA probe burrows into a comet,” SN: 7/9/05, p. 22)? Wouldn’t copper vapor contaminate the spray? Why not a high-temperature ceramic? P.M. deLaubenfelsCorvallis, Ore. According to Casey Lisse of the Deep Impact team, copper was chosen […]
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***Notice to Subscribers in Areas Affected by Hurricane Katrina***
The U.S. Postal Service has asked magazine publishers to suspend subscription mailings to areas that were damaged by Hurricane Katrina. Science News subscribers in those areas won't be charged for issues that are withheld, and their subscriptions will be extended. Mailings will resume upon notification by the USPS that delivery is reinstated.
- Earth
Changing Earth
Developed by the Smithsonian Institution’s National Museum of Natural History, this Web site focuses on Earth’s history. Visitors learn basic concepts of geological processes and evolution as well as gain a deeper understanding of how and why Earth changes and the impact of these changes on living organisms throughout its history. The site includes a […]
- Humans
From the August 31, 1935, issue
A turtle's trusty armor, a new growth stimulator, and the science of making cranberry jelly.
- Humans
Letters from the September 3, 2005, issue of Science News
Pick of the crop “Honey, We Shrank the Snow Lotus: Picking big plants reduces species’ height” (SN: 7/9/05, p. 20) suggests that the change is an evolutionary process. However, this and the other examples given are all more selective breeding than natural selection. In this case, organisms with undesirable characteristics (smaller size) are overrepresented during […]
