Next-gen Steel under the Microscope (IMAGE)
Caption
Eastern span of the San Francisco-Oakland Bay Bridge. The old and the new bridge, as seen at night from Yerba Buena Island to Oakland (mid-September 2013). The inset in the top left hand corner shows V Vanadium and 2H, Deuterium a hydrogen isotope (1 proton plus 1 neutron and 1 electron) as a Hydrogen substitute.
Credit
Photo credit Frank Schulenburg.
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