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Daniel Arnold, 14 from San Diego, has been working on a new type of model for train tracks. According to his experiment, using the modified spring switch track (which incorporates an extra spring from the existing model already used worldwide today) would prevent train derailments almost entirely.
Vighnesh Shiv, 17 from Portland, Ore., developed a platform that automatically analyzes music and can idenfity the instrument and individual notes. This technology, he says, could also be used for other sounds to extract information. For example, it could be used for healthcare purposes to classify electrocardio analysis.
Gavin Ovsak, 17 from Hopkins, Minn., developed a new style of water turbines that can be fully submersed and put to use to generate electricity (even in homes) using access to local bodies of water (i.e. river or ocean tidal currants). The apparatus, which Ovsak built from cutting boards, uses a fin he designed that moves at the same speed as the water and allows for the turbine to perform at maximum efficiency. Because the fins move with the water and don't use blades, fish should still be able to swim through these turbines just fine.
Ovsak has already had conversations with General Electric and 3M, so perhaps we'll see more about this soon.