MIT researchers develop a battery-free, wireless underwater camera to help explore uncharted waters

Engineers at the Massachusetts Institute of Technology (MIT) have built a battery-free, wireless underwater camera that could assist scientists in exploring unknown regions of the ocean, monitoring pollution and surveying the effects of climate change. Scientists estimate that more than 95% of Earth's oceans haven't been observed. That's a significant amount. We've explored the surface of Mars more than we've investigated Earth's oceans. Part of the reason for the lack of observation is the chal...