by Andrew Maynard
August 24, 2010
The more the debate over what precisely nanotechnology is goes on, the more inclined I am to think that it’s something of an illusion. Sure, nanoscale science is real. And there are clearly technologies that exploit this. But are they nanotechnologies, or are they simply clever uses of science, technology and engineering across multiple length [...]
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by Andrew Maynard
August 19, 2010
Most manufacturers of nanomaterial-based sunscreens try to make sure that the material they use doesn’t generate harmful chemicals in the presence of sunlight. But the paper this piece was based on suggested that some photoactive materials might be slipping through the net. Originally posted June 21 2008. Painted metal roofs are cheap, convenient, and usually [...]
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