Cars, Bikes, Trains, and Other Land Machines (How Things by Ian Graham

By Ian Graham

Displaying how wheels aid issues stream, the diversities among gas and diesel gas, and what a locomotive's insides appear like, a full-color creation to land machines good points medical reasons and experiments and actions.

Show description

Read Online or Download Cars, Bikes, Trains, and Other Land Machines (How Things Work) PDF

Similar nature & how it works books

Tools of Timekeeping: A Kid's Guide to the History & Science of Telling Time (Tools of Discovery series)

Teenagers will research all approximately innovations: their inventors, the best way they replaced background, and their evolution over centuries, in the course of the actions and anecdotes supplied during this interactive sequence. From historic civilization's earliest calendars and shadow clocks to the atomic clocks of at the present time, the heritage of time dimension emerges during this interactive consultant.

Thomas Edison: The Wizard Inventor (What's Their Story?)

This can be a magnificent new sequence of well-told, superbly illustrated biographies, for kids elderly 6-9 years, that includes nice leaders, heroes, pioneers, inventors and scientists from the previous. each one biography tells an exhilarating tale a few actual individual, that may be learn both by myself or by means of a dad or mum or instructor.

Additional info for Cars, Bikes, Trains, and Other Land Machines (How Things Work)

Example text

BUSY SIGNALS Bell’s telephone worked by causing an electrical current to flow from the speaker’s end of the telephone, the transmitter, to the listener’s end, the receiver. Unfortunately, he’d designed it so that the strength of the signal came from the volume of the speaker’s voice. That’s why users often had to shout. Edison came up with the idea of using a battery to provide a current on the line that could then be altered just slightly by a person speaking in a regular voice. That small change made a big difference.

Stories about Edison’s amazing invention, many of them inaccurate, have been leaking for weeks, and the people waiting in the cold for the midnight spectacular share them eagerly. There’s a rumor that Edison’s toughest critic, the respected engineering professor Henry Morton, is coming to see the demonstration for himself. Just the other day Morton denounced Edison in the New York Times. Edison promises a light that will be ten times stronger than a gas streetlight, but Morton believes it will at best merely equal a gaslight.

You’d be dissatisfied with it, and maybe you’d be determined to make something better. By the 1870s, Edison and other inventors felt that way about their wired world. Just like the people building the modern Internet, nineteenth-century inventors were obsessed with finding the Next Big Thing. On this day Edison has found it. SOUND AND FURY Several inventors have been trying to send sound over the wires that are now strung across the world. A few are already claiming to have done it. Not quite two years earlier Alexander Graham Bell spoke his famous words to his assistant, “Mr.

Download PDF sample

Rated 4.80 of 5 – based on 47 votes