Wordlywise Lesson 10E

bank buildings

castles

cathedrals

towers

They used steel rods to support the wall.

The base of the walls was made very thick.

The stones were stacked very carefully.

They used smaller stones on top.

They were powered by steam.

They used solar power.

They were power by nuclear generators.

They used wind power.

to move people

to move animals

to furniture

to move freight

It's when the first tall building was built.

It's when Otis proved that elevators were safe for people.

It's when the elevator was first invented.

It's when the president took the first elevator ride.

Steel rods on the sides.

It runs up and down a shaft.

Nothing, elevators can move side to side.

A special button your press when you enter the elevator.

They had to be able to support the weight of the elevator.

They didn't. Any rod would work.

Otis just preferred strong rods.

The building owners only liked strong rods.

stairs

escalator

ladders

elevators

The Empire State Building

The Willis Building

The Statue of Liberty

The Flatiron Building

one hour

one minute

10 minutes

2 hours