Engineering is where human knowledge meets real-world problems-and solves them. It's the source of some of our greatest inventions, from the catapult to the jet engine. Marshall Brain, creator of the How Stuff Works series and a professor at the Engineering Entrepreneurs Program at NCSU, provides a detailed look at 250 milestones in the discipline. He covers the various areas, including chemical, aerospace, and computer engineering, from ancient history...

Six kids on the run must face a villain who threatens the future of human existence . . . but winning comes at a high price.
Six children have escaped horrifying government experiments, a childhood in captivity, and a frightening brush with death. Living out in the world for the first time, they yearn to be reunited with Kit and Frannie, the couple who saved their lives. And Max, the leader of the flock, is seized by an overpowering...

Meet Jeremiah Adams. There are two of him. The offer is too tempting: be part of a scientific breakthrough, step out of his life for a year, and be paid hugely for it. When ViMed Pharmaceutical asks Jeremiah to be part of an illegal cloning experiment, he sees it as a break from an existence he feels disconnected from. No one will know he's been replaced -- not the son who ignores him, not his increasingly distant wife -- since a revolutionary drug...

When Max and the Flock discover an unscrupulous scientist who is experimenting on humans in an effort to "improve" the human race, they decide that they must try to stop him, in spite of Angel's prediction about Fang dying.

Fans of #1 New York Times bestselling author Lora Leigh's scorching Breed series first met Cassie as a little girl in Elizabeth's Wolf. Now Cassie has finally come into her own as a young woman, and she's about to discover the one she is destined for--but it is unclear whether her fate is to be mated for life, or marked for death... The Breeds are humans altered before conception with the DNA of the predators of Earth. But although they all carry...

"Luke Abramson, a brilliant cellular biologist who is battling lung cancer, has one joy in life, his ten-year-old granddaughter, Angela. When he learns that Angela has an inoperable brain tumor and is given less than six months to live, Abramson wants to try a new enzyme, Mortality Factor 4 (MORF4), that he believes will kill Angela's tumor. However, the hospital bureaucracy won't let him do it because MORF4 has not yet been approved by the FDA. Knowing...

Focus on the dominant source of electricity in the U.S. today: coal. Begin by reviewing concepts from thermodynamics that explain how power plants work. Then follow the processes that turn a hopper full of coal into abundant electrical power, extracting the maximum amount of energy along the way..

Test the limits of small, inexpensive, off-the-shelf hobby motors by building a motor-driven crane capable of lifting 100 pounds - a tall order for a motor that weighs only a few ounces! First, construct the world's simplest electric motor to gain insights about how they work. Then calculate the torque requirements for your crane, and add gears and pulleys to achieve mechanical advantage.

Delve into the green building movement, which promotes structures that use natural resources more efficiently while reducing environmental impact. Focus on minimizing energy consumption through a well-insulated, airtight building envelope; energy-efficient windows and doors; and energy-efficient HVAC systems and appliances..

Wouldn’t it be great to have a robot that took out your trash or put away your books? Explore how robots are designed to perform specific tasks, and the choices roboticists must consider in doing so—including the stability of the workplace and the minute steps of the task itself..