Building Evolution--Typewriter Perfection--Military Stagnation.

• Localización: Scientific American, ISSN 0036-8733, Vol. 292, Nº. 3, 2005, págs. 16-16
• Idioma: inglés
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• Resumen

  • This article looks back at articles in "Scientific American" from 50, 100, and 150 years ago from March 2005. MARCH 1955: The Curtain Wall--"The term 'curtain wall' is used nowadays to describe the sheath, or 'skin,' of a modern building. It looks quite different from its predecessor, the old load-bearing wall, and in fact it represents a big advance in architectural evolution." MARCH 1905: Writing Machine-- "It is a far cry from the monkish calligrapher, working in his cell in silence, to the brisk 'click, click' of the modern writing machine, which in a quarter of a century has revolutionized and reformed business." MARCH 1855: Muddled--"Capt. Norton made a number of very useful inventions in shot and shells, and recommended them to the head men in the British army more than ten years ago, but they were passed over unheeded, and now when danger threatens them in the Crimea, they rub their eyes and inquire about their utility."