Land became very valuable in cities, so it became highly impractical to spread buildings out over large amounts of land. Instead, builders chose to construct vertically as there was no charge for building higher.
The inventions of elevators.
OR
The use of steel in construction
It means they can hold more people in less space, than if they built lots of low buildings over a wider area.
in big cities such as new york
Steel
Architects don't "build" skyscrapers, they design them. Give credit where credit is due, IronWorkers build skyscrapers.
Steel made it possible to build Skyscrapers. Answer "construction of skyscrapers"
Termites are able to build towers as high as a giraffe.
Supportive steel frames were developed .
The electric elevator, water pressure, and steel.
They used it to build highways, schools, skyscrapers, and factories
strong steel made it possible to build skyscrapers and suspension bridges
Steel was the primary thing needed to build skyscrapers. The next one was elevators were needed to get above 3-4 floors and finally equipment to left and move the steel.
Man-made resources are things that only humans can build, such as railroads and skyscrapers.
The materials used to build skyscrapers are strong materials that can withstand a great tension and compression. Early days the skyscrapers are usually made by iron frame but now it uses lighter and stronger metal, steels.
Mills began producing tons of strong and inexpensive steel.
Electricity powered homes and factories. How did electricity change Americans' lives?