Defense: Flying Belts, Swimming Tanks, Giant Muscles & Fast Foils

Modern technology treats harshly those who do not anticipate its rapid progress, and this is nowhere truer than for the military. The U.S. is not only working on next year's weapons, but also on those for many years and even decades ahead. This year the U.S. will raise its research budget to a record $6.3 billion out of a total defense budget of $60 billion. More than 2,000 new weapons are on drawing boards or taking shape both in the military's 83 labs and arsenals and in the countless defense projects of private...