6-9 ┊ 4696 words ┊ ◄))
6-9, 4696 words, 40 minutes audio time.
What does it take to be a soldier? Strength and intelligence both play a part, but soldiers need extra help to do their job of defending their country. Enter technology such as satellites, robotics, and computers. Learn all about these forms of technology and the scientific principles behind them.
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