Steve Parker

John Farndon

Camilla De la Bédoyère

Barbara Taylor

Duncan Brewer

Adam Hibbert

Sue Becklake

100 Facts

Provides information about inventions, discussing such topics as primitive tools and wheels, the development of weapons, time measurement, forms of communication, recording sound, and space travel.

100 Things You Should Know about Inventions

Looking at our home planet, Earth, this book establishes its position relative to the sun and to the other planets which surround it. As the Earth is the planet which has been studied most thoroughly, the information on the composition of the planet is described in detail.

Planet Earth and the Universe

Duncan Brewer

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