Mimicking a protein secreted by mussels that allows the mollusk to stick to, well, just about anything, scientists have developed a new material from a dopamine-like molecule that can serve as a versatile adhesive coating.
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Some 25,000 nuclear weapons lie in the arsenals of at least nine countries, but the highest-probability danger the world faces is not a full-scale war. It is, rather, that a small group of terrorists could grab just enough highly enriched uranium from a poorly guarded site and assemble a crude device that could nevertheless devastate a city. The U.S. Congress and the administration of President George W. Bush must pay greater attention to this threat, nuclear security expert Matthew Bunn said at a AAAS briefing on Capitol Hill.
BEIJINGTop officials from AAAS and Chinese science and technology organizations have signed a series of agreements to collaborate on publishing and education projects and to seek future engagement in fields that could range from ethics and sustainable development to public engagement.
Three of the six researchers who received Nobel Prizes for science this year are AAAS members, as is former Vice President Al Gore Jr., who shared the Nobel Peace Prize for his efforts to raise awareness about global climate change