Description
Sunshine can do more than make us happy when skies are gray, it can also provide ammo for ancient ray guns! Readers will discover how humans have harvested this clean energy source: from Archimedes? sunbeam weapons to today's solar-powered movie theaters. Visuals of ancient, modern and futuristic human inventions are sure to catch the interest of every reader. Readers will also love the fact boxes full of enlightening material as they soak in this highly relevant science topic.