Engraving of the ‘Interoceanic Ship Railway’ in Central America between the Atlantic and Pacific Oceans, proposed by James B. Eads in the late 19th century [2459 x 3123]

Engraving of the ‘Interoceanic Ship Railway’ in Central America between the Atlantic and Pacific Oceans, proposed by James B. Eads in the late 19th century [2459 x 3123]

Transducer housings in false keel of HMS MATAPAN (D-43) / Launched as a fleet destroyer in 1945, rebuilt as Sonar Trials Ship 1970-72, scrapped 1979 [1020×768]

Transducer housings in false keel of HMS MATAPAN (D-43) / Launched as a fleet destroyer in 1945, rebuilt as Sonar Trials Ship 1970-72, scrapped 1979 [1020×768]

Yo Dawg … A 120-metre floating dry dock, inside a 230-metre Panamax floating drydock, loading onto a 255-metre semi-submersible, heavy-lift ship XIN GUANG QUA, March 29, 2018. [1400×730]

Yo Dawg … A 120-metre floating dry dock, inside a 230-metre Panamax floating drydock, loading onto a 255-metre semi-submersible, heavy-lift ship XIN GUANG QUA, March 29, 2018. [1400×730]

NOAA NANCY FOSTER (R352) in dock at Detyens shipyard, Charleston, SC / Launched as torpedo test ship in 1990. Transferred to NOAA in 2001 and converted to conduct coastal research. [1024×1024]

NOAA NANCY FOSTER (R352) in dock at Detyens shipyard, Charleston, SC / Launched as torpedo test ship in 1990. Transferred to NOAA in 2001 and converted to conduct coastal research. [1024×1024]

S.A. AGULHAS, ice-strengthened training ship and former polar research vessel, in Princess Elizabeth Drydock, East London, South Africa, 2018. [2048×1536]

S.A. AGULHAS, ice-strengthened training ship and former polar research vessel, in Princess Elizabeth Drydock, East London, South Africa, 2018. [2048×1536]