Astu lugude lõputusse maailma
Ilukirjandus
This article traces the evolution of the powered passenger elevator from its initial development in the mid-19th century to the installation of the three separate elevator systems in the Eiffel Tower in 1889. The design of the Tower's elevators involved problems of capacity, length of rise, and safety far greater than any previously encountered in the field; and the equipment that resulted was the first capable of meeting the conditions of vertical transportation found in the just emerging skyscraper.
The Author: Robert M. Vogel is associate curator of mechanical and civil engineering, United States National Museum, Smithsonian Institution.
© 2016 anboco (E-raamat): 9783736406094
Väljaandmise kuupäev
E-raamat: 8. august 2016
Sildid
Kokku üle 700 000 raamatu 4 keeles
Suur valik eestikeelseid raamatuid
Uusi raamatuid iga nädal
Kids Mode lastesõbralik keskkond
14.99 € /kuus
Tühista igal ajal
119.99 € /aasta
Säästa 33%
Eesti
Eesti
