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- Locomotive (16705 bytes)
3: ...se they have payload space or are rarely detached from their trains, are known as power cars.
5: ...h the trains in one direction, and are controlled from a control cab at the opposite end of the train ...
11: ...en safer to locate the train's power systems away from passengers. This was particularly the case for ...
14: ...solescence cycles'' - separating the motive power from the payload-hauling cars means that either can ...
17: ... fuel, or they may take [[Power (physics)|power]] from an outside source. It is common to classify loc... - Giant Panda (7693 bytes)
21: ...s from behind. Copulation time is short, ranging from thirty seconds to five minutes, but the male ma...
23: The whole gestation period ranges from 83 to 163 days, with 135 days being the average...
25: ...first born, it is pink, naked and blind and sucks from its mothers breast 6-14 times a day for 30 minu...
32: ...ade known to the West in [[1869]] by the [[France|French]] [[missionary]] [[Armand David]]. The Giant ...
41: ...tantly related. The shared name appears to derive from their common bamboo diet. Until its relation to... - Helicopter (20080 bytes)
1: ...wing aircraft</b>. The word helicopter is derived from the [[Greek language|Greek]] words ''helix'' (s...
23: ...tail rotor is sufficient to cancel out the torque fromt the main rotor, the helicopter will not rotate...
29: ... amount of power required to prevent a helicopter from spinning is significant. A tail rotor can use u...
42: ...the RPM is too high, damage to the main rotor hub from excessive forces could result. In general, RPM ...
44: ... The cyclic is usually controlled by the stick in front of the pilot. - Digital photography (33923 bytes)
28: ...4 will capture continuous footage at a rate of 30 frames per second at a [[display resolution]] of 640...
38: *Images may be copied from one media to another without any degradation.
43: ...mera can take infrared shots by simply using an infrared filter or light source.
55: *No dust on image from scanning process (caveat: dust on the sensor re...
59: *Digital images from professional cameras can be 'enlarged' many tim... - Cat (30067 bytes)
18: ...ats to keep [[mouse|mice]] and other rodents away from their grain. Currently, the cat is one of the...
25: ...uch exceptional genetic mutation.) When angry or frightened, a cat will lay its ears back, to accompa...
37: ...ng membrane]], which is a thin cover which closes from the side and appears when the cat's eyelid open...
45: ...ling brown liquid. Indoor cats will also benefit from being provided with a [[scratching post]] so th...
52: ...possibility of infection (or, rarely, [[rabies]]) from a cat bite. Cats ravage [[ecosystem]]s where th... - Beluga Whales (10188 bytes)
15: ... to simply as the '''Beluga''' - the word derives from the [[Russian language|Russian]] ''beloye'' mea...
20: ...is the now-extinct ''[[Denebola brachycephala]]'' from the late [[Miocene]] period. A single fossil ha...
36: ...r shallow inlets. These summer sites are detached from one another and a mother will usually return to... - Tree frog (1831 bytes)
1: {{Taxobox_begin | color = pink | name = Tree frogs }}
2: ... callidryas.jpg|250px]] | caption = Red-eyed tree frog ♀ ''Agalychnis callidryas'' }}
13: ...of small size, more elegant in form than the true frogs [[Ranidae]], of brighter colors, and more acti...
15: ... continent, and range into Asia and the north of Africa. The species become very noisy on the approach...
17: ...or]]'', replaced in the south by the [[green tree frog]], ''H. viridis''. The [[spring peeper]] is wid... - Crane bird (6009 bytes)
21: ... summer and autumn (the [[cranberry]] is so-named from its being extensively eaten by some northern sp...
26: ...ating dances have made them highly symbolic birds from earliest times. Crane myth is as widely separat...
32: ...ica get their name from cranes. Aztecs are people from the region [[Aztlan]] which literally means ''"...
34: ...was lost. With effort they have been brought back from the brink of extinction. Japan has named one of... - Oystercatchers (2890 bytes)
17: * [[African Black Oystercatcher]]<br><small>''H. moquini'...
28: They are found on coasts worldwide apart from the polar regions. They are all-black, black an...
30: ... The pointed shape is thought to prevent the eggs from rolling down a steep slope.
32: ...tercatcher (''Haematopus palliatus'')<br /> Image from 'Birds of America" J.J. Audubon]] - Tasmanian Devils (12312 bytes)
41: ...omestic mammals like sheep, birds, fish, insects, frogs and reptiles, diet is largely varied depending...
43: .... Adult males are the most aggressive and scaring from fighting over food and mates is common.
46: ...enous Australian]]s{{mn|Johnson2003|7}}. In Dingo-free Tasmania, marsupial carnivores were still activ...
48: ...troduced as early as [[1830]] to remove the devil from rural properties as it was believed the devils ...
52: ...'s wild devils, and estimates of the impact range from 20% to as much as a 50% decline in the devil po... - Tree Frogs (1882 bytes)
1: {{Taxobox_begin | color = pink | name = Tree frogs }}
2: ... callidryas.jpg|250px]] | caption = Red-eyed tree frog ♀ ''Agalychnis callidryas'' }}
13: ...of small size, more elegant in form than the true frogs [[Ranidae]], of brighter colors, and more acti...
15: ... continent, and range into Asia and the north of Africa. The species become very noisy on the approach...
17: ...or]]'', replaced in the south by the [[green tree frog]], ''H. viridis''. The [[spring peeper]] is wid... - Renewable energy (27996 bytes)
1: ...pture their energy from existing flows of energy, from ''on-going natural processes'', such as [[solar...
3: ...n geothermal and [[tidal power]], ultimately come from the [[Sun]]. Some forms are stored solar energy...
5: ...c]] cells, or production of fuels such as ethanol from biomass (see [[alcohol as a fuel]]).
12: ...ost common definition is that renewable energy is from an energy resource that is replaced rapidly by ...
20: ...econdly for the energy that is directly collected from sunlight. In this section it is used in the lat... - Wind power (27669 bytes)
9: ... Eventually, the wind energy is converted through friction into diffuse heat all through the earth's s...
11: ...nvection|atmospheric convection]] system reaching from the earth's surface to the [[stratosphere]] whi...
13: ...eflectivity) of land and water, humidity, and the friction of wind over different terrain are some of ...
24: ...ropeller-type turbines. Actual efficiencies range from 10% to 20% for propeller-type turbines, and are...
26: [[Image:Lee_Ranch_Wind_Speed_Frequency.png|frame|right|Distribution of wind speed (red) and ene... - Flying shuttle (5068 bytes)
5: ...w the action of weaving prior to it. In a typical frame loom, the operator sits with the newly woven c...
8: ... reduce friction. The weft thread is made to exit from the end rather than the side, and the thread is...
10: In manual operation, a cord runs to each box from a handle held by the operator. To start the pic...
15: ...as largely ignored. His home attacked, he fled to France and died there in poverty.
17: ...f produced a new source of injuries; if deflected from its path, it could be shot clear of the machine... - Jet engine (22370 bytes)
1: ...ine (left of photo) prevents debris - or people - from being pulled into the engine by the huge volume...
2: ...ir and combustion products) in one direction and, from [[Isaac Newton|Newton]]'s [[Newton's_laws_of_mo...
4: The engine draws [[air]] in at the front and compresses it. The air is combined with [[...
8: ...ssing into the ignition chamber prevents backflow from it and thus makes possible the continuous burni...
15: ...f the maximum performance which could be obtained from it; the limit was essentially one of [[propelle...
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