How come? how so? that's how things began: the inventions that changed our world
Subramanian, R P
How come? how so? that's how things began: the inventions that changed our world - New Delhi The Energy Resource Institute 2014 - 45
Inventions have changed our world beyond imagination — from the simple mechanical clock to the television, telephone, computer, and microscope. Learn how it all began, where, when, and who were the pioneers in this book.
9788179935477
Invention
J 608 SUB
How come? how so? that's how things began: the inventions that changed our world - New Delhi The Energy Resource Institute 2014 - 45
Inventions have changed our world beyond imagination — from the simple mechanical clock to the television, telephone, computer, and microscope. Learn how it all began, where, when, and who were the pioneers in this book.
9788179935477
Invention
J 608 SUB