Children's Encyclopedia1976 |
Des de l'interior del llibre
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Pàgina 54
... turns to steam . Steam takes up much more space than water and Piston Boiler In 1936 a streamlined British locomotive ... turn moves the driving rod , which turns the wheels of the locomotive . Firebox Huge diesel locomotives haul goods ...
... turns to steam . Steam takes up much more space than water and Piston Boiler In 1936 a streamlined British locomotive ... turn moves the driving rod , which turns the wheels of the locomotive . Firebox Huge diesel locomotives haul goods ...
Pàgina 56
... turn the crankshaft . The crankshaft is joined to the clutch and the gear - box , as you can see in the picture . If you have a bicycle with gears you will know what a gear is . In top gear you can go fast while turning the pedals quite ...
... turn the crankshaft . The crankshaft is joined to the clutch and the gear - box , as you can see in the picture . If you have a bicycle with gears you will know what a gear is . In top gear you can go fast while turning the pedals quite ...
Pàgina 57
... turn at only half the speed of the small one . Turning the Wheels Some cars have automatic transmission . This means that the engine changes gear itself when it reaches certain speeds . The driver does not have to change gear unless he ...
... turn at only half the speed of the small one . Turning the Wheels Some cars have automatic transmission . This means that the engine changes gear itself when it reaches certain speeds . The driver does not have to change gear unless he ...
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Frases i termes més freqüents
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