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LOCOMOTIVE Equipped with powerful electric engines, the TGV's locomotives can travel at high speed even while climbing hills. Because the train has a locomotive at each end, the locomotive does not need to be repositioned before a trip in the other direction. 8 km/h) IN A TEST RUN, A TGV REACHED THIS SPEED IN 2007, SETTING A NEW RAIL SPEED RECORD. Drive wheel Axis Rail Rail head Concrete or wooden sleeper Rail foot Rail web Rail clip 74 USES AND APPLICATIONS ENERGY AND MOVEMENT 75 Motorcycles 137 Motorcycle for Tourism or Adventure hese agile vehicles are commonly used in both transportation and racing.
STACK bears the flag of the naval company. Helm acts as a steering wheel. When it is turned, the ship changes direction. Ship's flag LOADING HATCHES This boat is a mixed freighter because it can store merchandise in the hold as well as in containers. WINDLASS is used to drop and raise the anchor. Folded deck cranes STRAIGHT RUDDER Hatch cover Propeller (screw) Water The ship moves straight ahead. LEFT RUDDER 1 Driven by the engines, the propeller turns. 2 The water is pushed backward. 3 The force of reaction pushes the ship forward.
WHEEL RIM is made out of a lightweight alloy to lower the weight of the wheel. RADIATOR cools down the engine's coolant. TIRE has a low profile, improving stability during fast turns. COMPRESSOR activates the car's air-conditioning system. ALTERNATOR generates the energy consumed by the car's electrical devices. 1769 CUGNOT built the first steampropelled automobile. This vehicle reached about two miles per hour (3 km/h). ENGINE Modern engines use fuel efficiently—consuming and polluting less than ever— and they can provide high power even with relatively small engines.
Britannica Illustrated Science Library Energy And Movement by Inc. Encyclopaedia Britannica