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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... - Brain (22060 bytes)
9: .... The brains of arthropods and cephalopods arise from twin parallel nerve cords that extend through t...
11: The brains of craniates develop from the anterior section of a single dorsal [[neura...
20: ...ers are [[congenital]]. [[Tay-Sachs disease]], [[Fragile X syndrome]], [[Down syndrome]], and [[Toure...
38: ...derstand the nervous system, including the brain, from a biological perspective. [[Psychology]] seeks...
41: ... which are the mass changes in electrical current from the cerebral cortex, but can only detect change... - Glass (26176 bytes)
1: ...iginally, which can be seen in its [[conchoidal]] fracture.
3: The word ''glass'' comes from [[Latin]] ''glacies'' (ice) and corresponds to ...
18: ...nto other shapes and colors as shown in this ball from the [[Verrerie of Brehat]] in [[Brittany]].]]
22: ...plify]] transmitted signals by [[laser]] emission from within the glass itself.
26: Glass is sometimes created naturally from volcanic [[magma]]. This glass is called [[obs... - Earth (30908 bytes)
7: ...th''' or '''Terra''', is the third planet outward from the [[Sun]]. It is the largest of the [[solar s...
14: ...f approximately 12,742 km. The maximum deviations from this are the highest point on Earth (the summit...
55: ... is only 1/20,000 as great as the energy received from the Sun.
74: ...utaway-english.png|thumb|350px|left|Earth cutaway from core to exosphere. Partially to scale.]]
86: ...Peridotite|harzburgite]]s which has been observed from deep parts of the oceanic crust that have been ... - Babe Ruth (55357 bytes)
10: ...Babe Ruth, full-length portrait, standing, facing front, holding up bat, in baseball uniform, on field...
12: ...itcher. Brother Matthias promptly switched George from catcher to pitcher to teach him a lesson. But, ...
15: ...rs, placed a team in Baltimore, across the street from minor league Orioles, and the competition hit O...
25: ...9 his physique had changed from the tall athletic frame of 1916 to a rotund shape with which he was us...
29: ...e the [[Black Sox Scandal|1919 World Series]] and Frazee's own failings as a theater promoter meant th... - St. Peter's Basilica (17805 bytes)
22: ...pear to be part of the drum, but which stand away from it like buttresses, to absorb the outward thrus...
26: ...right|300px|Light streams down into the sanctuary from the dome cupola.]]
31: ...y [[Antonio Averulino]] ([[1455]]), and preserved from the previous basilica.
33: ...ating the most recent openings:<!-- This is taken from an old source, is the inscription new since 200...
68: ...d the holy door in the year of the great jubilee, from the incarnation of the Lord 2000-2001. - Thomas Edison (20653 bytes)
5: ...ding the [[United States]], [[United Kingdom]], [[France]], and [[Germany]]. Edison started the [[Moti...
7: ...et at his winter retreat (The Mangoes). They were friends until Edison died. The [[Edison and Ford Win...
14: From [[Port Huron]], Sam Edison moved to [[Detroit]]...
16: ...to read and experiment. Many of his lessons came from reading the book [["Parker's School of Natural ...
18: ...ork as it blocked out noises and prevented Edison from hearing the telegrapher sitting next to him. So... - Uranus (15207 bytes)
145: ..., or "YOOR-ə-nus") is the seventh [[planet]] from the [[Sun]]. It is a [[gas giant]], the third l...
157: ... regions of Uranus receive a greater energy input from the Sun than its equatorial regions. Uranus is ...
172: ...rgium Sidus'' or "the Georgian" were still used infrequently (by the British alone) thereafter. The fi...
179: ...nditions. It can be easily found with binoculars. From Earth it has a diameter of 4". Even in large te...
206: ... they found that the star had disappeared briefly from view five times both before and after it disapp... - Lightning (33113 bytes)
10: ...shared some similarity with lightning. [[Benjamin Franklin]] endeavored to test this theory by using a...
12: ... to a post with a [[silk]] thread. As time passed Franklin noticed the loose fibers on the string stre...
14: ... had conducted similar experiments in [[France]], Franklin had suggested the original high-object-with...
16: ...clothes singed, the engraver knocked out, the doorframe of the room split, and the door itself torn of...
18: Franklin also invented the [[lightning rod]], likely... - Alexander Graham Bell (18688 bytes)
15: ... out of admiration for Alexander Graham, a family friend.
19: ...year he spent at the [[University of Edinburgh]]. From [[1866]] to [[1867]], he was an instructor at S...
23: ...ical notes, but articulate speech. With financing from his American father-in-law, on [[March 7]], [[1...
27: ...e]] bestowed on him the [[Volta Prize]] of 50,000 francs, the [[Royal Society of Arts]] in London awar...
41: ... in circuit with the line. As the current passed from the probe through the liquid to the line a grea... - Train (10331 bytes)
7: ...ay come from a variety of sources, but most often from a [[locomotive]] or self-propelled [[multiple u...
19: Freight trains comprise wagons or trucks rather than...
21: ... [[United States]], it is quite common for a long freight train to be headed by three, four, or even f...
23: ...ns can also be mixed, hauling both passengers and freight, see e.g. [[Transportation in Mauritania]]. ...
31: ...almost all were powered by [[steam locomotive]]s. From the [[1920s]] onwards they began to be replaced... - Capacitor (29664 bytes)
9: [[Image:Dielectric.png|frame|The electrons in the molecules shift toward th...
14: :<math>C = \frac{Q}{V}</math>
32: :<math>i(t) = C \frac{dv(t)}{dt}</math>
34: The [[impedance]] in [[frequency domain]] can be written as
36: :<math>Z = \frac{1}{j \omega C} = - j X_C </math> - Electricity (13894 bytes)
6: ...eek]] ''ēlektron'' = "[[amber]]", which came from an old [[root (linguistics)|root]] ''ēlek-...
10: ..., and coined the modern Latin word ''electricus'' from ''ηλεκτρ&omicr...
12: ...[[Ebenezer Kinnersley]] of [[Philadelphia]] (less frequently) who created the convention of positive a...
16: Franklin's observations aided later scientists such ...
29: ...sometimes gain a measure of economic independence from the electrical utilities. - Cable car (railway) (12669 bytes)
2: ...[Image:Cable_Car.jpg|thumb|right|Cable Car in San Francisco]]
3: [[Image:Sf_cable_car.jpg|thumb|right|A San Francisco cable car]]
9: ...le. Conversely the car is stopped by detaching it from the cable, and then applying brakes. This gripp...
16: ...nkers Patent Railway]] in [[New York]], which ran from [[1 July]] [[1868]] to [[1870]]. The cable tech...
18: ...Station.jpg|thumb|right|Machinery driving the San Francisco Cable Car]] - Ionosphere (19365 bytes)
1: ...practical importance because it influences [[high-frequency]] (HF) (3–30[[MHz]]) [[radio propaga...
6: ...d to as the ionosphere. In a plasma, the negative free electrons and the positive ions are attracted t...
8: ...[[recombination]] begins to take place in which a free electron is "captured" by a positive ion if it ...
10: ...t. The local winter [[hemisphere]] is tipped away from the Sun, thus there is less received solar radi...
14: ... e profile.gif|right|thumb|350px|Electron density from solar ionization during the day and night durin... - Sense (11343 bytes)
5: ...how many senses there are. The disagreements stem from a lack of consensus as to what the definition o...
13: ...interpret sensory input to derive new information from it.
15: ...d through the body by tactition. Lower and higher frequencies than can be heard are detected this way ...
21: ...factory receptor neuron]]s in the [[nose]] differ from most other neurons in that they die and regener...
31: ...the thermoceptors in the skin are quite different from the [[homeostasis|homeostatic]] thermoceptors w... - Lawrencium (5210 bytes)
31: ...[[rare earth]] element, lawrencium is synthesized from [[californium]] and has no known uses.
41: ...en moved in order to place the collected atoms in front of a series of [[solid-state]] detectors. The ... - Protactinium (7744 bytes)
156: ... Hahn]] and [[Lise Meitner]] of [[Germany]] and [[Frederick Soddy]] and [[John Cranston]] of the [[Uni...
158: ...olate Protactinium for the first time in [[1934]] from 0.1 mg of Pa<sub>2</sub>O<sub>5</sub>, first co...
166: ... million|part]] 231-Pa to 10 million of ore; ores from [[Zaire]] have about 3 ppm. - Tin (12094 bytes)
178: ...als to prevent corrosion. Tin is obtained chiefly from the [[mineral]] [[cassiterite]] where it occurs...
181: ... crystals breaking). This metal resists corrosion from [[distilled]] sea and soft [[tap water]], but c...
183: ...[chlorine]] and oxygen and displaces [[hydrogen]] from dilute acids. Tin is malleable at ordinary temp...
186: ...s [[aluminium]] and [[zinc]] and can be prevented from occurring through the addition of [[antimony]] ...
193: ... in panel lighting and in the production of frost-free [[windshield]]s. - Rhodes piano (5144 bytes)
7: ...[[Harold Rhodes]], and its principles are derived from both the [[celesta]] and the [[electric guitar]...
11: ...oo soft to be practical, so each tine vibrates in front of an electric-guitar-style [[magnetic pickup]...
13: ...o tremolo (which was called Vibrato on the Rhodes front panel) [[effects unit]], which pans the signal...
15: ...d more bell-like. It can be heard on many records from that time. When notes are played forcefully, t...
19: ..."Gotta Serve Somebody" by Bob Dylan, or the theme from "Taxi" by [[Bob James]].
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