There are machines to dig, to hammer, to push—to do every kind of heavy job and to make work thousands of times easier and faster.
On farms, in the mines, in cities where huge buildings are built and out in the woods where powerdriven saws slice through great trees, many kinds of special machines do many kinds of remarkable jobs.
Can you imagine a giant shovel so huge that it took 45 freight cars to haul it from factory to mine? Do you know that there is a machine that plucks the feathers off chickens, ones that pick corn, dig potatoes? Inventors of machines work on everything—they even had fun making a mechanical mouse that can sniff about until it finds a piece of “cheese” and then “remember” and run straight to it next time!
As marvelous and complicated as all these machines are, the author points out that no inventions will ever be as wonderful as the men who invented them—and the men who make them work.
You will find this book an exciting companion to TRAINS AT WORK, SHIPS AT WORK, TRUCKS AT WORK.
Garden City Books
Garden City, New York
TRUCKS AT
WORK
By Mary Elting