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An interactive periodic table

Ptable began in 1997 and continues today http://www.ptable.com/about.html Use the check boxes at the top of the page to dynamically switch between simple, with names, with electron configuration, and inline inner transition metals. View as much or as little information as you'd like. If you haven't clicked any layouts, they will automatically switch to fit the width of your screen as you resize.

Switch is a sound file format converter for Windows or Mac. Convert audio files from many different file formats into mp3, wav or wma. For example convert wav to mp3, mp3 to wav, wma to mp3 or many other formats. Just add the files you want to convert, select the output format, and then click convert.

Jul 16 - Cisco, the world's biggest manufacturer of routers and switches that direct Internet traffic, illustrates the directions it sees technology veering.

Digital cameras can take beautiful monochrome shots -- even today's mid-range point-and-shoot models. But you'll need to do more than just flip the switch to Black & White mode. Here's our guide to taking better black and whites. This article is a wiki. Got extra advice? Log in and add it.