To suggest topics or sites for Web Watch, please visit http://www.physicstoday.org/suggestwebwatch.html. Compiled and edited by Charles Day
Four groups around the world have built artificial retinas and subjected the devices to clinical trials. One of the groups, The Artificial Retina Project, is a Department of Energy–sponsored collaboration among five national labs, three universities, and one company. The project's website includes an overview of the project, a patient's story, and the inaugural issue of the project's newsletter.
George Bertsch's online tool, Liquid Drop Model of Nuclear Binding Energy, lets you evaluate how well the venerable model accounts for the measured binding energy of nuclides. The tool comes with the formula's standard terms and coefficients, which you can alter to explore how the model depends on them.
In An Essay Concerning Human Understanding, which first appeared in 1689, John Locke argued that knowledge of the world reaches our brains through...
