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MIT has a wireless tech that appeared to work with that range: http://blog.ted.com/2009/08/25/wireless_electr/ http://blog.ted.com/2009/08/25/wireless_electr/
by timdorr 15y ago
MIT has a wireless tech that appeared to work with that range: http://blog.ted.com/2009/08/25/wireless_electr/ http://blog.ted.com/2009/08/25/wireless_electr/