1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Andre45 [30]
3 years ago
8

The two most important new technologies that enabled the development of the skyscraper were

History
1 answer:
pochemuha3 years ago
6 0

These two technologies were the development of a  safe elevator  and the method of building using a grid of steel beams. 

In 1853, an American inventor called Elisha Graves Otis developed a safety device that kept elevators from falling should a  cable break. This new development had an enormous impact on public confidence. Later in the century, the change to an electric motor made the elevator a practical solution to the problem of getting up and down tall buildings.

In Chicago during the 1880s, lack of space for building became a problem due to a high rate of development, and the only alternative was to build upward. Construction techniques had to change and so a new method of building was developed that used a grid of steel beams and columns that were strong enough to support any stresses or forces a building may experience. With this new building method, the skyscraper was born.


You might be interested in
Why did the British hang Nathan hale
Tanya [424]

<span>The British hanged Nathan Hale because he was a spy sent from the british.</span>

<span><span>
</span></span>

7 0
3 years ago
Read 2 more answers
Who was the 19th president of the united states?​
MakcuM [25]

Answer:

rutherford b hayes

Explanation:

3 0
3 years ago
Read 2 more answers
.Encouraging free trade between countries and helping countries negotiate trade conflicts are the two most important jobs of the
Alja [10]

Answer:

D

Explanation:

6 0
3 years ago
Read 2 more answers
The success of the steam engine in the industrial revolution increased the demand for what?
Ratling [72]
It increased the demand for coal and iron. we need the iron to build things and the coal to power things. Remember coal is what powered the steam engine.
7 0
3 years ago
1. This is a diagram of a British
pantera1 [17]
Yes because .........
3 0
3 years ago
Other questions:
  • lets do a chain were one person says one word each time in a comment and it turns into a whole story but you can only comment on
    7·1 answer
  • Which statment best describes philoshies of john locke
    15·2 answers
  • The composition of the passenger list indicates that these colonists were likely a part of what
    11·1 answer
  • What lead to a huge number of barbadians moving to carolina
    6·1 answer
  • Describe the purpose and function of the writ of habeas corpus
    13·2 answers
  • Why did radical followers of the ayatollah khomeini ovverun the u.s embassy and take american hostage?
    11·1 answer
  • Anyone wanna be my friend i'm new
    14·1 answer
  • Who were the THREE authors of the Federalist Papers? ill give brainiest
    6·2 answers
  • Which image would best represent the ecomony of the New England colonies? A. Plant. B. A Ship. C. A beaver. D. A house. ( I’m as
    8·1 answer
  • Why did the United States support open trade? Check
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!