BR 2-04: Extreme Skydiving

Extreme speed is a fundamental part of the sport of skydiving. The average skydiver jumps out of a plane from a hight of thousands of feet and free falls. In a free fall, the diver accelerates extremely quickly and can reach speeds exceeding 100 miles per hour in a few moments. 

Have you ever experienced skydiving? I haven't but someday I'd like to try to skydive. I learned something thorough read this book. For example, existence of ''terminal velocity'' that is a constant speed of about 120 miles per hour, and principle of shuttlecock which is a small object with feathers that is used like a ball in the game of badminton. Do you know that? The good point of this series National Geographic is that the book has so many knowledge we don't know. That is why we can enjoy reading. Please read it and get some interesting knowledge!

Rob Waring. (2009). Extreme Skydiving. National Geographic          
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