Ed Summers and his accessibility team at SAS are working to develop something called "Audio Embossing", using technology to make accessible charts, graphs, maps, etc. To view more audio embossed samples, go to http://support.sas.com/misc/
To use the accessible periodic table, Diane Brauner recommends that you initially use your iPad (bigger touch screen); although, it does work on all iOS devices. Turn Voiceover on and drag your finger around the screen to hear the various elements and information on the periodic table. If further information is desired, double tap on a specific element.