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- History of philosophy (13862 bytes)
7: ...hilosophy]] has a long history. Conventionally divided into three large eras - the Ancient, Medieval a...
10: Western Philosophy is generally said to begin in the Greek cities of western Asia Mino...
12: ...g parts), the [[Eleatic School|Eleatics]] [[Parmenides]] and [[Zeno of Elea|Zeno]] (All is One and cha...
14: ...ere respected members of society, and were well paid by their students. It's also well known that orat...
16: ...rying to determine whether anyone had a very good idea what they were talking about, especially when t... - Moth (5332 bytes)
7: {{Taxobox_ordo_entry | taxon = [[Lepidoptera]]}}
10: ... to the [[butterfly]]. Both are of the order [[Lepidoptera]].
12: ...ho study butterflies and/or moths are called [[lepidopterist]]s; the study of butterflies is known as ...
14: The division of Lepidoperans into moths and butterflies is a popular ta...
19: [[Image:IL_240E_moth.jpg|thumb|Moth image provided by [http://classroomclipart.com Classroom Clip ... - Aviation history (39698 bytes)
5: ...s were controlled by moving your entire body ([[glider]]s) or warping the planes' wings ([[Wright brot...
13: ...ms how successful these were. See [[First flying machine]] for a review of such claims.
15: ...y and the prototype actually flew. However, a considerable amount of interpretation of his design, wit...
17: ...olved. He said "It seems easier to talk of such a machine than to put it into actuality, for it requires...
19: ...rage" in Europe in the late [[18th century]], providing the first detailed understanding of the relati... - Isaac Newton (23339 bytes)
2: ...his [[Newton's laws of motion|laws of motion]], laid the groundwork for [[classical mechanics]]. Newto...
4: ...heliocentrism]]. Newton is also credited with providing mathematical substantiation for [[Kepler's law...
14: ...o said that his body at that time can even fit inside a quart mug. His father had died three months be...
19: ...corded 'sweethearts' and never married. [http://scidiv.bcc.ctc.edu/Math/Newton.html]
23: ...], but Newton preferred to read the more advanced ideas of modern philosophers such as [[René „escarte... - Pressure (9004 bytes)
16: ...ommonly, "30 psig", though other methods which avoid attaching this information to the unit of pressur...
23: ...it. Pressure acts in all directions at a point inside a gas. At the surface of a gas, the pressure for...
26: ...e]] is the pressure due to the [[weight]] of a fluid.
30: ...[rho|ρ]]'' (rho) is the [[density]] of the fluid
32: *''h'' is the height of fluid above the point being measured - Apple Macintosh (24250 bytes)
7: ...based successor (AKA Darwin, a modern OS based on Mach 3.0 and 4.4 BSD), named [[Mac OS X]] (the "X" is ...
34: ...eloped jointly by Apple, [[International Business Machines|IBM]] and [[Motorola]] ([[Power Macintosh 610...
45: * First full-size notebook computer with widescreen display ([[PowerBook G4]], 2001)
54: ..., low-cost computer for the average consumer. His ideas were collected into "The Book of Macintosh". N...
72: ...llowing, it was too radical for some. Because the machine was entirely designed around the GUI, existing... - List of philosophers (79981 bytes)
27: *[[Aenesidemus]], (1st century BC){{fn|R}}
95: *[[Aristides (Apologist)|Aristides]], (fl. 2nd century)
102: *[[David Malet Armstrong]], (born 1926){{fn|C}}{{fn|O}}{{f...
154: *[[Basilides]], (c. 117-138){{fn|C}}
159: *[[David Baumgardt]], (1890-1963){{fn|R}} - History of chemistry (8174 bytes)
2: The '''history of chemistry''' may be said to begin with the distinction of [[chemistry]] fr...
3: ...g|thumb|150px|left|Chemistry Clipart .Clipart provided by
8: ...]], and other synthetic [[dye]]s, as well as the widely used drug [[aspirin]]. The discovery also cont...
12: ... did not, such as [[Wilhelm Ostwald]] and [[Ernst Mach]]. Although such proponents of the atomic theory...
23: ...ded a ready supply of products which not only provided energy, but also synthetic materials for clothi... - Propeller (12179 bytes)
6: ...ive a good performance against resistance but provide little thrust, while larger angles have the oppo...
11: ...es|C-130 Hercules]]), the pilot can manually override the constant speed mechanism to reverse the blad...
15: ...lade is required to perform, limiting the local [[Mach number]] - a significant performance limit on pro...
17: ...wer without increasing propeller diameter and provides a counter to the torque of high-power piston en...
21: ...rate at Mach 0.8 or higher, although there is considerable fall off in efficiency. - Jet engine (22370 bytes)
15: ...g as low aircraft performance parameters were considered acceptable, and indeed inevitable. However, b...
17: ...91. The earliest attempts at jet engines were hybrid designs in which an external power source supplie...
21: ...aining was built in 1903 by Norwegian engineer Aegidius Elling. The first patents for jet propulsion w...
25: ...he Hirth engine company, and Ohain and his master machinist [[Max Hahn]] were set up there as a new divi...
33: British engines also were licensed widely in the US. Their most famous design, the [[Rol...
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