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  1. Timeline of invention (28171 bytes)
    6: * 2.4 MYA: [[Oldowan|Stone tools]] in [[Africa]]
    8: ...YA: Controlled [[fire]] in [[Cradle of Humankind|Africa]]
    26: * [[Cloth]] woven from [[flax]] fiber
    112: * [[1589]]: [[Stocking frame]]: [[William Lee]]
    134: ...quadrant]]: [[Thomas Godfrey (inventor)|Thomas Godfrey]]
  2. USS Monitor (7466 bytes)
    39: ...he ship was below the waterline to prevent damage from cannon fire. ''Monitor'''s hull was constructed...
    41: ...itted with Ericsson's [[propeller|marine screw]]. Ericsson anticipated some aspects of modern [[submarine]] ...
    43: ...mand of Lt. [[John L. Worden]], arrived under tow from Brooklyn. When ''Virginia'' returned the next ...
    51: ...otala Warf]] in [[Norrk?g]]; she was named ''John Ericsson'' in Honor of the engineer. She was followed by 1...
    53: ...e last U.S. Navy monitor-class warship was struck from the Navy List in [[1937]].
  3. Leif Ericson (4502 bytes)
    4: ...icson''' ([[Old Norse language|Old Norse]]: '''Leifr Eiríksson'''; modern [[Icelandic language|Icelan...
    6: ...einn]], and one sister, [[Freydís Eiríksdóttir|Freydís]]. Leif married a woman by the name of Þó...
    12: ... the river, and the climate was mild, with little frost in the winter, and green grass year-round. The...
    14: ...he [[nickname]] 'Leif the Lucky' (Old Norse: ''Leifr hinn heppni'').
    21: ... discovered the American mainland while returning from Norway to Greenland in [[1000]] or thereabouts;...
  4. Sweden (27111 bytes)
    3: ...ttles with its neighbouring countries [[Denmark]] from the 12th century – 1710, and [[Norway]] i...
    19: ...[[Swedish language|Swedish]]: "Thou Ancient, Thou Free") |
    67: ...]] originated in a so-called "[[back-formation]]" from the plural form [[Swedes]] ([[Old English]] ''S...
    69: ...sia down to southern Europe. The [[Kievan Rus']], from which Russia takes its name, traces its heritag...
    73: ...untry today known as Finland was a part of Sweden from [[1362]] until [[1809]].
  5. Viking Age (10637 bytes)
    2: ...s of [[Europe]], the [[Middle East]], northern [[Africa]], and even reached [[North America]].
    6: ...ovgorod]]. Other Norse people, particularly those from the area that is now modern-day Sweden, continu...
    8: [[France]] was particularly hard-hit by these raiders,...
    10: ... identified themselves as French, but carried the French language and culture into [[England]] in 1066...
    17: ...use could well be pressure caused by the [[Franks|Frankish]] expansion to the south of Scandinavia.
  6. Propeller (12179 bytes)
    1: ...force produced is from the difference in pressure from the forward and rear surfaces of the blades.
    27: ...cy as the fan is drawing on a smaller area of the free stream and so using less air, this is balanced ...
    34: ...include [[William Symington]], the Marquis de Jouffroy, [[John Fitch]] and many others. The American [...
    36: ...ilar to Ressel's in [[1836]]. In [[1839]], [[John Ericsson]] introduced the screw-propeller design onto a sh...
    40: ...itial designs owed much to the ordinary [[screw]] from which their name derived - early propellers con...
  7. Mobile phone (30513 bytes)
    10: ...Siemens AG|Siemens]], [[SK Teletech]], and [[Sony Ericsson]].
    12: ...st communication systems related to, but distinct from mobile phones, such as [[satellite phone]]s and...
    18: ...ere (calls cost more to make to a mobile, but are free to receive) cannot be used, and as a result use...
    36: ...on more than one [[GSM frequency ranges|GSM radio frequency]]. The multi-mode case occurs mostly in GS...
    40: ...hones, the base band processing is very different from system to system. This leads to real difficulti...

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