"Understanding the World's Greatest Structures: Science and Innovation from Antiquity to Modernity -- a marvelous learning experience that takes you around the world and reveals the stories behind the most famous bridges, churches, skyscrapers, towers, and other structures from thousands of years of history. These 24 lectures take you on a fascinating and richly illustrated tour that deftly blends history and science to create an unforgettable survey...

Course examines World War II, its causes and costs

Look around you. Great masterpieces of engineering are everywhere. As soon as you get out of bed in the morning, you are putting centuries of scientific and mechanical ingenuity to use. So familiar are these structures, inventions, and services that they are all but invisible. Yet they are just as remarkable as great works such as the Parthenon, the Eiffel Tower, and the Panama Canal. Everyday Engineering: Understanding the Marvels of Daily Life is...

Learn how to read music and play the guitar from a master of the instrument.

Exploding kittens is a card game for people who are into kittens and explosions and laser beams and sometimes goats. In this highly-strategic, kitty-powered version of Russian roulette, players draw cards until someone draws an exploding kitten, at which point They explode, they are Dead, and they are out of the game - unless that player has a defuse card, which can defuse the kitten using things like laser pointers, belly rubs, and catnip sandwiches....

You are bird enthusiasts-researchers, bird watchers, ornithologists, and collectors-seeking to discover and attract the best birds to your network of wildlife preserves. Each bird extends a chain of powerful combinations in one of your habitats (actions). These habitats focus on several key aspects of growth: Gain food tokens via custom dice in a birdfeeder dice tower Lay eggs using egg miniatures in a variety of colors Draw from hundreds of unique...

One key to improving and expanding your math potential--whether you're a corporate executive or a high-school student--lies in the powerful ability to perform mental math calculations. Solving basic math problems in your head is a gateway to success in understanding and mastering higher mathematical fields such as algebra, statistics, and calculus. Mental mathematics also is valuable when you're shopping for groceries or figuring out how much to tip...

Check out the latest images the Hubble Space Telescope has captured of our Milky Way Galaxy--and beyond.

An introduction to basic engineering principles and the science behind them. The course gives a new perspective on one of the most productive periods in the history of civilization. In case after case, you will find that engineering solutions reached during this era would not be surpassed for another thousand years or more.