Profiles the Scottish engineer who overcame a series of serious illnesses, setbacks, and competition from other inventors to develop a television transmitter and began the...
Explores the history of human flight, from the first experiments at Kitty Hawk to superjumbo jets, focusing on the contributions made by the Wright Brothers...
An informative, illustrated account of the development of the first lasers reviews the parts of a laser and how they work and examines the applications...
With twopage colorful illustrations, World Books Learning Ladders series is for young learners looking to learn the basics about nature, science, and their communities. Each...
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Profiles the Scottish engineer who overcame a series of serious illnesses, setbacks, and competition from other inventors to develop a television transmitter and began the...
Explores the history of human flight, from the first experiments at Kitty Hawk to superjumbo jets, focusing on the contributions made by the Wright Brothers...
An informative, illustrated account of the development of the first lasers reviews the parts of a laser and how they work and examines the applications...
With twopage colorful illustrations, World Books Learning Ladders series is for young learners looking to learn the basics about nature, science, and their communities. Each...