Singular Nanobots

Ray Kurzweil, variously described as a technology guru, visionary, prognosticator, inventor or nutcase and often all five at once has a new book out ” The Singularity Is Near: When Humans Transcend Biology” and is out on the road to promote it. As the rather unimpressed New York Times puts it, Kurzweil “postulates that we are fast approaching a time …

Nano Better than Petrol

A Rice University study compares “the environmental and health risks associated with the production of five nanomaterials — single-walled carbon nanotubes, buckyballs, zinc selenide quantum dots, alumoxane nanoparticles and titantium dioxide nanoparticles — with the risks of making six commonplace products — silicon wafers, wine, high-density plastic, lead-acid car batteries, refined petroleum and aspirin.” It’s an interesting mix of products, …