Children's Encyclopedia1976 |
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Resultats 1 - 3 de 8.
Pàgina 41
... machines on a modern farm that the farmworker has to know quite a lot about machinery . Tractors are used for pulling all sorts of things - plows , drills , and harvesters . The combine harvester is a huge machine that cuts the crop and ...
... machines on a modern farm that the farmworker has to know quite a lot about machinery . Tractors are used for pulling all sorts of things - plows , drills , and harvesters . The combine harvester is a huge machine that cuts the crop and ...
Pàgina 51
... machines like tanks , planes , and machine guns were used for the first time . Railways carried millions of soldiers to the battle- fields , and motor trucks moved supplies quickly overland . The first fighting planes took to the skies ...
... machines like tanks , planes , and machine guns were used for the first time . Railways carried millions of soldiers to the battle- fields , and motor trucks moved supplies quickly overland . The first fighting planes took to the skies ...
Pàgina 59
... machine and the engine was started . With Wilbur run- ning after it , the plane rose a few feet into the air and ... machines and controlled them by swinging his body . He was almost ready to fit an engine to his strange craft when he ...
... machine and the engine was started . With Wilbur run- ning after it , the plane rose a few feet into the air and ... machines and controlled them by swinging his body . He was almost ready to fit an engine to his strange craft when he ...
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adult Aerotrain Africa Arctic areas armor atomic battle bigger birds body bomb bones brain breathe build built butterfly called carried cells cities coal colored crankshaft creatures crops cylinder deep desert dinosaurs earth eggs Egyptian plover electricity enemies engine feet fish flower forests galaxy gear Greeks ground grow heat hovercraft huge hunted insects inside jungle kinds knights land leaves light live look Louis Bleriot machine mammals miles millions Montgolfier brothers moon Mount Everest mountains move muscles nerves nest numbers oxygen picture piston plane pollen Prairie falcon railways rain reptiles river road rock Sahara Desert sailing sea anemone sea scorpions seeds shell ships shows skin South America South Pole space spacemen speed spider stars steam locomotives stone sun's sunlight surface tiny tractors trees turn wheels wind Wright brothers young