Andrew Christensen has been drawing since he could hold a pencil. He is a graduate of the Center for Cartoon Studies and an art director at a hobby game company. He lives in Minneapolis, Minnesota.
In 3-D Engineering: Design and Build Your Own Prototypes, young readers tackle real-life engineering problems by figuring out real-life solutions. Kids apply science and math skills to create prototypes for musical instruments, race cars, alarms, and more. Prototypes are preliminary models used by engineers and kids to evaluate ideas and to better understand how things work. Bridges, skyscrapers, helicopters, and night lights are all very useful things! But how did somebody come up with the...View
Canals and Dams: Investigate Feats of Engineering invites children ages 9 and up to explore the innovation and physical science behind the amazing waterways and barriers our world depends on. Trivia and fun facts illustrate engineering ingenuity and achievements from ancient aqueducts to the Suez Canal and the Hoover Dam. Readers will discover that engineers and builders alike put their lives on the line to advance civilization, experiencing triumphs and tragedies in building big. Through...View
Over centuries and across cultures people have defied gravity in a quest to build the tallest, grandest structures imaginable. Skyscrapers: Investigate Feats of Engineering with 25 Projects invites children ages 9 and up to explore the innovation and physical science behind these towering structures. Trivia and fun facts illustrate engineering ingenuity and achievements from the ancient pyramids to the Empire State Building. Readers will develop an understanding of how our modern, sophisticated building techniques and...View