How do you harness the energy of the ocean? Oregon State alumni Alex Hagmuller and Max Ginsburg cofounded Aquaharmonics to try and figure it out: starting with a wave energy device prototype they tested in a bathtub. Today, they're backed by millions of dollars from the U.S. Department of Energy, partnering with Sandia National Laboratories, and are on course for ocean testing with a full-size wave energy converting buoy.