Two things led to the feasibility of skyscrapers:
One technology that made skyscrapers possible would be the elevator. The other, I suspect is structural steel.
STEEL! Elevators Telephones Efficient pumps
elevators and skyscrapers
Among them were the ability to mass produce steel, the invention of safe and efficient elevators, and the development of improved techniques for measuring and analyzing structural loads and stresses.
the elevator!
One technology that made skyscrapers possible would be the elevator. The other, I suspect is structural steel.
STEEL! Elevators Telephones Efficient pumps
Skyscrapers
The invention of steel skeletons and elevators made building skyscrapers possible
elevators and skyscrapers
the elevator!
Among them were the ability to mass produce steel, the invention of safe and efficient elevators, and the development of improved techniques for measuring and analyzing structural loads and stresses.
Steel made it possible to build Skyscrapers. Answer "construction of skyscrapers"
elevators.
Steel.
Yes,building of time machine is possible as the technology has enhanced.
strong steel made it possible to build skyscrapers and suspension bridges