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¡Cómo era antes la tecnología! Calculadoras de bolsillo de hace un siglo http://ow.ly/Gr1d3085srF vía Twitter @_HectorPrieto_ #tecnología

¡Cómo era antes la tecnología! Calculadoras de bolsillo de hace un siglo http://ow.ly/Gr1d3085srF vía Twitter @_HectorPrieto_ #tecnología

据称,哈维将爱因斯坦的大脑组织送往宾夕法尼亚大学,并在那里对爱因斯坦大脑进行切片,并交给了其他知名神经病理学家(网页截图)爱因斯坦的大脑显微镜载片至今依然在穆特博物馆中展出(网页截图)

The Day Einstein Died: Dr. Thomas Harvey - was the pathologist who conducted the autopsy on Einstein at Princeton Hospital in

Andamiaje para el mantenimiento de la estatua de la libertad en los años 80 vía Twitter @ETSIC_UPM @solestudiosing

Andamiaje para el mantenimiento de la estatua de la libertad en los años 80 vía Twitter @ETSIC_UPM @solestudiosing

Construction of fire position for German super-heavy 800 mm Dora    Construction of fire position for German super-heavy 800 mm Dora fire position for the 1350 tonne giant guns were twin railway tracks with two additional branches for erecting cranes. For engineering training positions were allocated 1000 deminers and 1500 workers, forcibly conscripted from among local residents. These types of gun were used in the storming of Sevastopol for the destruction of the fortifications.

Construction of fire position for German super-heavy 800 mm Dora Construction of fire position for German super-heavy 800 mm Dora fire position for the 1350 tonne giant guns were twin railway tracks with two additional branches for erecting cranes. For engineering training positions were allocated 1000 deminers and 1500 workers, forcibly conscripted from among local residents. These types of gun were used in the storming of Sevastopol for the destruction of the fortifications.

Imagen del viaje inaugural del ferrocarril aéreo, el 22 de mayo de 1915.

Imagen del viaje inaugural del ferrocarril aéreo, el 22 de mayo de 1915.

Redes de seguridad a 67 m sobre el agua.Construcción del Golden Gate.  vía Twitter @vyepesp @Estructurando #ingeniería #historia

Redes de seguridad a 67 m sobre el agua.Construcción del Golden Gate. vía Twitter @vyepesp @Estructurando #ingeniería #historia

Diseño de la primera glorieta urbana del mundo Grands Boulevards París, por E. Hénard. No se llegó a ejecutar.

Diseño de la primera glorieta urbana del mundo Grands Boulevards París, por E. Hénard. No se llegó a ejecutar.

Des organisateurs du marathon de Boston tentent de faire abandonner Kathrine Spitzer de participer à l’événement. Elle est devenue, la première femme à terminer, la course (1967)

Boston Marathon 1967 - Organizers attempt to stop a woman from running the race

Map of Beijing, published in 1937. [1800 × 2645]

city map of Beijing, published in Beijing in The map shows a detailed street map of the Chinese Capital, including the city walls, which were torn down in the

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Primer, La Sede, El Grande, Tatoo, Cement, Sailing Ships, Canisters, Boats, Cubism

Isabel Ii, Madrid, Bass Guitars, Water, Envelopes

Cargando el primer disco duro de 5 megabytes en un avión de PanAm, 1956

30 Fotos muy raras que te darán una nueva perspectiva de la historia del mundo

A 5 megabyte IBM hard disk is loaded into an airplane. It weighed over 1956

Iconic image of iron workers at The Palladium - Carmel, IN  www.douglasadamsphotography.com

Iconic image of iron workers at The Palladium - Carmel, IN

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