Science in our Environment: Communications

Aanchal Broca Kumar

ม.ค. 2011 · The Energy and Resources Institute (TERI)

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Talking on the phone, text-messaging, chatting on the internet and emailing—today, there are many ways to send and receive information! But there was a time when communicating was not so easy. In fact many thousand years ago, humans did not even know how to speak! Join the ever-inquisitive Teri and the immensely knowledgeable Green Genius in their attempt to trace the journey of communication in this book.