Long-Distance Communicationby Mary Scarbrough, Blackbirch Press (Manufactured by)
Smoke signals, the telegraph, satellites, and the Internet are a few of the ways humans have sent messages over long distances. As long-distance communication methods increased in complexity over the years, the speed of delivery and distance traveled usually increased as well.
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This book is great for any age-from carrier pigeons to telegrams, this book is very educational. I love it, my husband loves it, my kids love it, even my dog loves it.