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From our mobile phones to our televisions, silicon chips are a part of much of our daily lives. Where does silicon come from? Much of it comes from sand. The following video from the Chemical Heritage Foundation explains the concept of how silicon chips are created.

Wolfram Tones is a neat offering from Wolfram that students can use to can play with sample sounds and rhythms to create new own sounds. Wolfram Tones uses algorithms, music theory, and sound samples to generate new collections of sounds. Wolfram Tones allows visitors to choose samples from fifteen different genres of music on which to build their own sounds. Once a genre is selected visitors can then alter the rhythms, instrumentation, and pitch mapping of their sounds. When satisfied with their creations, users can download their sounds or have them sent directly to their cell phones.

Digital health interventions (DHIs) are fast emerging as vital tools to promote personal health and provide essential services. DHIs can be accessed through mobile phones, tablets and computers, as well as serve as effective support systems to improve personal health.