Uncategorized
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19378
The thought that anyone, Eskimo or otherwise, would willingly kill a member of an endangered species that may have been swimming when George Washington was still alive makes me sick at heart. Honoring one’s ancestors could surely be achieved by going out in a whaleboat, engaging in a mock hunt, and showing true reverence for […]
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19299
This article could leave the impression that the evolutionary significant unit (ESU) is the de facto concept employed for all listing decisions under the Endangered Species Act. In fact, the ESU has not been used in the vast majority of recent listing decisions under the act. Nor should it be. The act allows the National […]
- Health & Medicine
Busy hospitals may not be best choice
A large number of heart surgeries done at a hospital doesn't always correlate with a low mortality rate from such operations at the facility.
- Earth
Ice-dammed lakes had cooling effect
New computer simulations suggest that massive lakes in northern Russia—formed when an ice sheet blocked the northward flow of rivers about 90,000 years ago—significantly cooled the region's climate in summer months.
- Humans
Better protection from mad cow disease
The Food and Drug Administration has announced several new measures to keep meat that's potentially infected with mad cow disease out of food supplies.
- Health & Medicine
Surgery removes grenade from soldier’s head
Colombian military doctors extracted an intact grenade from the head of a teenage soldier.
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19377
Of course animals think, I’d say. But you say, “Many [scientists] theorized that nonhuman animals react to their surroundings without actually thinking.” My observation over the decades has been that most humans do the same, most of the time. George BlenderSan Diego, Calif. You don’t need all the elaborate experiments described in the article. If […]
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Unsure Minds
A controversial set of studies indicates that monkeys and dolphins know when they don't know the answer to certain tasks, an ability that presumably relies on conscious deliberations.
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19298
The statement by Kyeongjae Cho that “we don’t have enough platinum” for a hydrogen economy based on fuel cells is simply wrong. Anyone who is working in the fuel cell industry expects the amount of platinum used in fuel cells to drop by the time this technology will be available for a mass market. If […]
- Tech
Virtual Nanotech
With computers becoming ever more powerful, researchers are simulating nanoscale materials and devices down to the level of atoms and even electrons.
- Math
Amicable Pairs, Divisors, and a New Record
The Pythagoreans of ancient Greece were fascinated by whole numbers. One particular interest involved what we now call amicable numbers. Amicable numbers come in pairs in which each number is the sum of the proper divisors of the other. The smallest such pair is 220 and 284. The number 220 is evenly divisible by 1, […]
- Humans
From the January 27, 1934, issue
alt=”Click to view larger image”> FLASH-OVER AT 125,000 VOLTS Beauty is, indeed, the most important if not the only reason for the choice of this week’s front-cover picture. A glass insulator, of the kind that electrically isolates high-tension [power lines] so that they may carry their power uninterruptedly, is shown flashing over after withstanding a […]
