Have you ever pushed the "up" or "down" button for an elevator? You probably stepped into the elevator car, pressed the number of a different floor in the building, and expected the door to open there - it happens millions of times all around the world every day. Most people don't ever consider all the engineering wonders behind the important transportation device. Just think: we would not have the skyscrapers and city skylines we have today without the modern elevator.
Softcover | 48 pages | lb.
Tracy Maurer has written more than 100 books for young readers. She holds an MFA in writing for children and young adults from Hamline University. Her home is near Minneapolis, a busy city with many tall buildings thanks to elevators.