News
- Tech
Beads and glue defeat forgers
Researchers have devised a cheap, translucent material that, when embedded in credit cards and other items, would endow the items with unique identifiers that are almost impossible to tamper with or copy.
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Trashed proteins may help immune system
Up to 30 percent of a cell's proteins get recycled as soon as they roll off the cellular assembly line.
- Earth
Moderate flows help carve rivers
Measurements of erosion in a rocky river channel in Taiwan suggest that the day-to-day flow of water accounts for more rock wear there than occasional catastrophic floods do.
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Gene found for big, firm sheep rumps
Scientists have found the gene that gives sheep unusually big, muscular bottoms.
