Describes the reasons for and the design and operation of NASA's Space Shuttle and discusses who will be flying it and the benefits to be derived from such a shuttle.
A look at the history of using tanks in warfare describes how the M1A1 Abrams tank was designed, introduces its physical characteristics, and discusses how it has been used during the Iraq War.
Describes how radar and other air surveillance techniques, such as airborne warning and control devices, are used to watch the skies to determine what the enemy is doing