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  1. Camera (4262 bytes)
    9: ...irror to project the image onto a ground glass or plastic micro-prism screen. [[Twin-lens reflex camera]]s ...
  2. Camping (6354 bytes)
    11: ...ess by car. Some "walk-in" sites can be reached only by a brief walk, but do not require full [[backp...
    38: ...uipment better tailored to camping, such as heavy plastic tableware and salt and pepper shakers with tops t...
  3. Geyser (14881 bytes)
    4: ...es a favourable [[hydrogeology]] which exists in only a few places on Earth, and so they are fairly ra...
    12: ...ve presses down on the hotter water beneath, not unlike the lid of a [[pressure cooker]], allowing the...
    26: ...ong dormant periods, eruptions were sometimes humanly-induced---often on special occasions---by the ad...
    35: ..., for example in manufacturing [[antibiotic]]s, [[plastic]]s, [[detergent]]s (by the use of heat-stable enz...
  4. Yo-yo (9646 bytes)
    3: ...[toy]] consisting of two equally-sized discs of [[plastic]], [[wood]], or [[metal]], connected with an [[ax...
    28: ... Flambeau Plastics, who had manufactured Duncan's plastic models since [[1955]]. They continue to run the c...
  5. Guitar (36953 bytes)
    41: ...= The nut is a small strip of [[ivory]], bone, [[plastic]], [[graphite]], or other medium-hard material th...
    44: ...ctly before the finger). Fretboards are most commonly made of [[rosewood]], [[ebony]], and [[maple]].
    48: ...d both forward and backward (most truss rods can only be loosened so much, beyond which the bolt will ...
    50: ...th, 15th, 17th, 19th, and 21st frets, and double inlays on the 12th, sometimes 7th, and (if present) 2...
    57: ...rengthened with internal bracing, decorated with inlays and purfling, and subjected to a lot of abuse.
  6. United States House of Representatives (41197 bytes)
    4: ...ch as the power to approve treaties) are granted only to the Senate and are denied to the House. As a ...
    17: ...rty years. The Republicans swept back into power only in [[1995]], under the leadership of [[Newt Ging...
    21: ... is entitled to at least one representative. The only constitutional rule relating to the size of the ...
    25: ...in Islands]] are represented by a delegate each. Only [[Puerto Rico]] elects a Resident Commissioner.
    29: ...e power to censure its members; censure requires only a simple majority, but does not remove a member ...
  7. Navigation (15650 bytes)
    7: ... of open ocean, to tiny inhabited islands, using only their own senses and knowledge, passed by oral t...
    18: ... status, since in times of famine or difficulty, only they could trade for aid or evacuate people. Th...
    65: ...cial horizon by reflecting a bubble. Inexpensive plastic sextants are available, though they have less acc...
    114: ...ts accurate geographic location with an error of only a few metres, and precision timing to less than ...
    138: ...ww.irbs.com/bowditch Bowditch Online] - complete online edition of [[Nathaniel Bowditch]]'s ''American...
  8. Leather (7695 bytes)
    9: ...can be formed into a supple, strong material commonly called leather.
    11: ...der. In hot water, it will shrink drastically and plasticize, becoming a rigid, brittle material of little ...
    22: ...ch have not been sanded to remove imperfections. Only the hair has been removed. The grain remains in ...
    26: ...e split from a single thickness of hide, whereas only one piece of top-grain can be made. However, as...
    28: ... in [[1818]]. Modern patent leather usually has a plastic coating.
  9. Computer mouse (29399 bytes)
    11: ...by ''Opocentsky'', 10/76, [http://www.freepatentsonline.com/3987685.html 3987685].]]
    13: ...gelbart's oN-Line System ([[NLS (computer system)|NLS]]), which was both a hardware and software syste...
    24: ...Kirsch]] of [[Mouse Systems Corporation]], could only be used on a special metallic surface ([[mouse p...
    39: ...reless settings. A wireless mechanical mouse may only draw 5mA or less of [[electrical current]], wher...
    51: ...used as a convenience to map the action to a commonly used action, or a macro. In the [[X Window Syste...
  10. Cornea (4779 bytes)
    29: ... plastic inserts, but there are also some made of plastics that encourage the eye tissue to grow into the s...
  11. Christmas tree (16574 bytes)
    11: ...rity along the lower Rhine, and was spread there only by [[Prussian]] officials who were moved there i...
    26: ...ies in other [[genus|genera]] are also used. Commonly used species in Northern [[Europe]] (including t...
    44: ...se trees is low. These trees must be kept inside only for a few days, as the warmth will bring them ou...
    55: ...ed by the user into a wooden pole (now metal with plastic rings) for a trunk. Each row of branches is a dif...
    59: Around [[2003]], some trees with molded-plastic branches started selling in the U.S., intended to...
  12. Reed (music) (2717 bytes)
    1: ...] donax''; tuned reeds are made of [[metal]] or [[plastic]].
    4: ...Reeds are made out of a [[grass]] ([[cane]]) or [[plastic]]. The finest cane is grown in the [[Var]] region...
    9: ...m the reed blank and brings his/her time down to only 30-45 minutes.
    11: ...astic is flexible too!). Another advantage of the plastic reed is that it does not have to be moistened for...
  13. Guinea pig (19730 bytes)
    43: Unlike many rodents such as [[mouse|mice]], [[rat|rat...
    60: ...r third week after birth. Females can breed when only three weeks old. [[Litter#Other_meanings_of_litt...
    77: ...e badly, if not fatally, injured by a rabbit suddenly kicking out with its paws or an overly romantic ...
    81: ...or coroplast and cubes cage, made from corrugated plastic and wire squares. These wire squares are general...
    85: ...in their diet. Like [[Homo sapiens|humans]] but unlike most other [[mammal]]s, guinea pigs cannot syn...
  14. Cadmium (10755 bytes)
    173: ...], coatings and plating, and as stabilizers for [[plastic]]s. Other uses;
    186: ...calamine) and for 100 years Germany remained the only important producer of the metal. The metal was n...
    188: ...um iodide]] was used as a [[medicine]] to treat "enlarged joints, scrofulous glands, and chilblains".
    194: ...sumption, are produced from secondary sources, mainly from dust generated by recycling [[iron]] and [[...
    211: *[http://periodic.lanl.gov/elements/48.html Los Alamos National Laborato...
  15. Carbon (15360 bytes)
    15: ...d contains a high proportion of closed porosity. Unlike normal graphite, the graphitic layers are not ...
    19: ...any fruits. The [[isotope]] [[carbon-14]] is commonly used in [[radioactive dating]].
    27: ...bstances, many of which are collectively called [[plastic]]s.
    51: ... beta form, when synthetically-produced graphite only contains the alpha form. The alpha form can be c...
    53: ...ntly separated by other atoms, are held together only by [[van der Waals force]]s, so easily slip past...
  16. Fluorine (8588 bytes)
    39: In aqueous solution, fluorine commonly occurs as the fluoride ion F<sup>-</sup>.
    45: ...orine is used in the production of low friction [[plastic]]s such as [[Teflon]], and in [[halon]]s such as...
    49: ...luorochemicals, including many high-temperature [[plastic]]s.
    62: ... reactivity - it is separated from its compounds only with difficulty and then it immediately attacks ...
    75: ...that is detectable in concentrations as low as 20 nL/L. It is recommended that the maximum allowable c...
  17. Molybdenum (10247 bytes)
    175: ...colour)|orange]], used in [[paint]]s, [[ink]]s, [[plastic]]s, and [[rubber]] compounds. [[Molybdenum disulp...
    192: ...ly low toxicity. Acute toxicity in [[human]]s is unlikely because the dose required would be exception...
    199: *[http://periodic.lanl.gov/elements/42.html Los Alamos National Laborato...
  18. Praseodymium (9138 bytes)
    149: ...stored under a light [[mineral oil]] or sealed in plastic or glass.
    206: *[http://periodic.lanl.gov/elements/59.html Los Alamos National Laborato...
  19. Radon (12616 bytes)
    142: ...ticularly in certain regions, especially but not only regions with [[granite|granitic]] soils. Not all...
    159: ...ld. In lieu of building work, a layer of foil or plastic sheeting may be installed underneath carpeting or...
    165: *[http://periodic.lanl.gov/elements/86.html Los Alamos National Laborato...
  20. Silicon (13233 bytes)
    44: ...ductor]] devices, and [[silicone]]s, the latter a plastic substance often confused with silicon. Silicon is...
    93: ...ichlorosilane]] is the silicon compound most commonly used as the intermediate, although [[silicon tet...
    95: ...s and deposits additional silicon onto the rods, enlarging them according to [[chemical reaction]]s li...
    120: *[http://periodic.lanl.gov/elements/14.html Los Alamos National Laborato...

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