Elevator design hasn't progressed very much during the past 160 years, and still comprises cabins which move vertically in a shaft supported by cables. This is inefficient and limiting, taking up a ...
Breakthroughs, discoveries, and DIY tips sent six days a week. Terms of Service and Privacy Policy. For more than a century, elevators have gone pretty much just up ...
https://www.thehindubusinessline.com/companies/ThyssenKrupp-develops-rope-free-elevator-system-%60Multi%E2%80%99/article20921168.ece Copy ThyssenKrupp Elevator AG has ...
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