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<http://webisa.webdatacommons.org/3706744>	<http://www.w3.org/ns/prov#value>	"Also seen in the painting is an antenna, far left, probably part of another historic and forgotten experiment by Drake, the first attempt to use radar to map a coastline. (Radar, it will be remembered, returned to view later on - in England!) Other suppressed innovations in the painting include concrete, PolarTec (tm) snow-suits and the steel-truss railroad bridge (bits of which are now often fo" .