<http://webisa.webdatacommons.org/10876987>	<http://www.w3.org/ns/prov#value>	"Early scientists such as Edison and Marconi discovered technologies like the light bulb and radio wave transmission that began to tap the hidden potentialities of the electromagnetic field." .
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<http://webisa.webdatacommons.org/10876987>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<blogspot.com> .