Q&A Inventions 发明全知道
2006-12
Parragon
Spilsbury, Louise
224
You'll find the answers to hundreds of fascinating questionsdbout inventions inside this new children’S encyclopedia． ·Over 3 40 fascinating questions and answers ·Dates for keg inventions at a glance ·Index of famous inventors ·Over 2 00 photographs ·More thQn 2 5 0 illustrationsJ cutawag diagrams an d cartoons
INVENTloNS What iS an lnvention? The Futu re of l nventionsFARMING Plows Tractors Dai rv Machines Crop Watering Fa rm LI"1emICaISGM Foods Preservincj Food BUlLDING Building Materials Building Machines Skyscrapers Roads Bridges CanaIsENERGY Wind and Water Power Fossil Fuels Steam Power。 Electricity NUCIea r Power Sola r Power Natu ral Energy Sou rcesMANUFACTURlNG Spinning and Weaving Factory Products Mass ProductionTRANSPOR IAI IUN Buses and Trucks Bikes Ca rs Trains Boats Ships Balloons and Ai rships Helicopters Ai rplanesNAVIGATloN NaviqationaI Aids Rada r Sona r SatelIite NaviqationSPACE Telescopes ……WEAPONSMEDICINETIMEDAILY LIFE
书不是太精美，但内容很丰富，价格低
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