"In science fiction, energy blades are weapons or tools that look like glowing swords. How could one of these powerful devices work? Scientists have some ideas, which include using plasma. Discover the science and technology behind what it would take to make a real-life energy blade!"--Provided by publisher.
Which has wreaked more havoc through history: a crossbow or a cannon? Find out with this mash-up of famous military weapons from throughout history. Each of the 20 subjects features a description, color illustration, and a sidebar of rankings in key categories. Friends flip to random pages and then (3z(Bbattle(3y (Bone another in a chosen category. Covers the history of key military technology from ancient to modern times.
Describes weapons used during the American Civil War, including those used by the cavalry, the infantry, and the navy, and examines the effectiveness of each weapon on the battlefield.