Topics covered in this book include bending light, optic fibres, light waves, colours of light, how humans see light, lasers, sound waves, pitch and volume, ultrasound, hearing and speaking, resonance, and sound signals.
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Chris Oxlade is an experienced author of non-fiction books for children. He has written more than 200 titles on science, technology, sports and hobbies, from encyclopedia articles to fun activity books.
Brilliant Book...Best one With great quality pages and Awesome pictures !!
RAJARSHI
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