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  1. History of philosophy (13862 bytes)
    1: ...fundamental matters as diverse as [[reality]], [[knowledge]], [[meaning]], [[value]], [[being]] and [[...
    10: ...ft us the opaque dictum, "All is water." His most noted students were [[Anaximenes of Miletus]] and [[...
    12: ...wn (perhaps unjustly) for claiming that truth was no more than opinion and for teaching people to argu...
    14: ...were well paid by their students. It's also well known that orators had tremendous influence on Atheni...
    16: ... matters like justice, beauty and truth. He wrote nothing, but inspired many disciples. He was execute...
  2. Moth (5332 bytes)
    12: ...glish, confusion does not arise as the two are pronounced differently).
    14: ...into moths and butterflies is a popular taxonomy, not a scientific one. Sometimes the names "[[Rhopalo...
    16: Most species of moths are [[nocturnal]], but there are [[crepuscular]] and [[diu...
    18: ==Economic significance of moths==
    20: ...[[Gypsy moth]] causes severe damage to forests in North East USA, where it is an [[exotic species]]. T...
  3. Aviation history (39698 bytes)
    3: ...carus]]. Daedalus was trapped on the island of Minos, and so built wings out of feathers and wax for ...
    13: ...ms how successful these were. See [[First flying machine]] for a review of such claims.
    15: ...d designs for a helicopter, but this design would not have flown.
    17: ...g. Sufficiently light and powerful engines would not be available for powered flight until the [[gaso...
    19: The first known human flight ever took place in [[Paris]] in [[...
  4. Isaac Newton (23339 bytes)
    2: ...calculus nearly contemporaneously, their work was not a collaboration.
    4: ...rough a prism was inherent in the white light and not added by the prism as [[Roger Bacon]] had claime...
    6: ...f cooling of objects when exposed to air; the [[binomial theorem]] in its entirety; and the principles...
    14: ...unty of [[Lincolnshire]].Newton was premature and no one expected him to live. His mother also said th...
    19: ...e kept a warm memory of this love, but Newton had no other recorded 'sweethearts' and never married. [...
  5. Pressure (9004 bytes)
    3: ...r ''P'') is the measure of the [[surface normal | normal]] component of [[force (physics)|force]] that...
    9: *''F'' is the normal component of the [[force]]
    12: ...of area ''A'' upon which it exerts; the "surface" not necessarily being a that of a body, but for exam...
    16: Pressure is sometimes measured not as an absolute pressure, but relative to [[atmos...
    20: ...is a scalar quantity, but teachers and authors do not appear to believe this in their hearts." (McClel...
  6. Apple Macintosh (24250 bytes)
    2: ...ufactured by [[Apple Computer]], Inc. of [[Cupertino, California]], [[USA]].
    7: ...based successor (AKA Darwin, a modern OS based on Mach 3.0 and 4.4 BSD), named [[Mac OS X]] (the "X" is ...
    9: ...ntosh has introduced or popularized a number of innovations adopted later by other PCs and operating s...
    11: Innovations introduced or popularized with the origina...
    16: * Long file names, with [[whitespace]] and no [[file extension]].
  7. List of philosophers (79981 bytes)
    1: '''[[Philosopher]]s''' ''(and non-philosophers important in the history of philoso...
    3: {{compactTOC}} __NOTOC__
    5: *[[Pietro d'Abano]], (1250?-1316)
    7: *[[Nicola Abbagnano]], (1901-1990)
    25: *[[Theodor Adorno]], (1903-1969){{fn|C}}{{fn|O}}{{fn|R}}
  8. History of chemistry (8174 bytes)
    8: ...ad an organic [[compound]] been synthesized from inorganic material. This opened a new research field ...
    12: ...ining the behavior of [[gas]]es, this dispute was not finally settled until [[Jean Perrin]]'s experime...
    14: ...but was awarded the [[Nobel Prize]] in chemistry, not physics, for his work.
    20: For many decades, the list of known chemical elements had been [[Timeline of chemic...
    23: ...terials provided a ready supply of products which not only provided energy, but also synthetic materia...
  9. Propeller (12179 bytes)
    6: ...s efficiency are produced by a number of factors, notably adjustments to the helix angle, the angle be...
    11: ... the angle of attack will be high, possibly high enough to [[stall]] the airfoil. Since this is an ext...
    13: ...control of the [[Governor (device)|propeller governor]], in more advanced aircraft the mechanism is li...
    15: ...lade is required to perform, limiting the local [[Mach number]] - a significant performance limit on pro...
    17: ...l aircraft the added cost, complexity, weight and noise of the system rarely make it worthwhile.
  10. Jet engine (22370 bytes)
    1: ...eorgia, USA. The tunnel behind the engine muffles noise and allows exhaust to escape. The mesh cover a...
    6: ...turboprops are getting smaller as engineering technology improves.
    17: ...aze]] planes towards the end of [[World War II]]. None were entirely successful and the CC.2 ended up ...
    21: ...essfully run self-sustaining was built in 1903 by Norwegian engineer Aegidius Elling. The first patent...
    25: ...he Hirth engine company, and Ohain and his master machinist [[Max Hahn]] were set up there as a new divi...

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