Shows how virtual reality technology works and how it is evolving. Includes audio, videos, activities, weblinks, slideshows, transparencies, maps, quizzes, and supplementary resources.
The simplest machines are the lever, wheel and axle, pulley, ramp, and screw. The electric motor was first invented in 1832, and was used commercially for the first time 41 years later. Examine significant developments in the generation and use of power in Power and Energy, one of the titles in the Technology and Innovation series.
This guide presents the changes that led to the revolution, important inventions and innovations, societal and economic consequences, and the Second Industrial Revolution in the United States.
Encourages preteen and teen girls to use technology such as texting, Facebook, and the Internet responsibly, explaining the dangers they might face and offering advice on how to handle specific situations.
Some of the most famous examples of engineering in the ancient world come from Rome. The Colosseum, Hadrian's Wall, and Roman aqueducts are just some of the impressive structures readers are introduced to through detailed main text and vibrant photographs and illustrations. Readers are also invited to take a closer look at the ways ancient Romans applied technological knowledge in areas such as farming, transportation, and the military. Detailed sidebars highlight essential facts about Roman technology. This engaging cross-curricular approach appeals to readers with an interest in history, as well as those passionate about STEM.
