11/12/2006

Stripping away lead-based paint in a flash

A new paint stripper that combines the principles of a vacuum cleaner and a pulsed lamp shows promise as a much-needed new technology for removing dangerous lead-based paint from older housing, scientists in Massachusetts ...

Nitrogen rain makes bogs contribute to climate change

High levels of nitrogenous compounds can make bogs give off more carbon dioxide, thereby adding to the greenhouse effect. This has been shown by the plant ecologist Hakan Rydin in an article published this week in the Proceedings ...

Teaching Biology Means Teaching Evolution

Evolution is a complex topic for any science teacher, given the misconceptions that some students bring to the classroom and the gaps that can occur in teacher preparation. In Investigating Evolutionary Biology in the Laboratory, ...

Butterfly Wings Are Templates for Photonic Structures

By replicating the complex micron- and nanometer-scale photonic structures that help give butterfly wings their color, researchers have demonstrated a new technique that uses biotemplates for fabricating nanoscale structures ...

Regional nuclear war could devastate global climate

Even a small-scale, regional nuclear war could produce as many direct fatalities as all of World War II and disrupt the global climate for a decade or more, with environmental effects that could be devastating for everyone ...

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