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Columbia researchers might have the key to wireless VR
The millimeter wave frequency has the potential to do a lot. So far it's helping power 5G cell networks, but research from Columbia Engineering could expand that to self-driving cars and virtual reality headsets. It's a little dense, but the key bit is that the team figured out a new nonreciprocal way to transmit the waves, by using "carefully synchronized high-speed transistor switched that route forward and reverse waves differently." The school says it's basically like two trains charging head on on the same track, with them switching tracks at the last possible second.
