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- History of chemistry (8174 bytes)
2: ...ntoine Lavoisier]]'s discovery of the law of [[conservation of mass]], and thereby to his refutation o...
8: ... other synthetic [[dye]]s, as well as the widely used drug [[aspirin]]. The discovery also contributed...
12: ...havior of [[gas]]es, this dispute was not finally settled until [[Jean Perrin]]'s experimental investi...
14: Well before the dispute had been settled, [[Svante Arrhenius]] had begun to investiga...
20: ...dic table]], and, most impressively, Mendeleev's use of it to predict the existence and the properties... - 18th century (8231 bytes)
9: ...m and threatened the power of [[theology]]. The rise of nations like Austria, Russia, and Prussia bega...
11: ...lonies were both being established, and, in the case of [[USA|America]], breaking away from their pare...
18: * [[1707]]: [[Act of Union 1707|Act of Union]] passed merging the [[Scotland|Scottish]] and the [[Engl...
22: * [[1720]]: [[The South Sea Company|The South Sea Bubble]]
28: ...[1799|99]]: The [[Qianlong Emperor]] of China oversees a huge expansion in territory. - 18th century new (49640 bytes)
4: ...sbn=0340567511 | oclc=243883533}}</ref> [[File:Prise de la Bastille.jpg|right|250px|thumb|Storming of ...
6: ...merican revolutions. Philosophy and science increased in prominence. Philosophers were dreaming about ...
20: ...nin]] attack [[Kira Yoshinaka]] and then commit [[seppuku]] in Japan.
25: * [[1707]]: [[Act of Union 1707|Act of Union]] passed merging the [[Scotland|Scottish]] and the [[Engl...
42: * [[1715]]: [[Pope Clement XI]] [[Chinese Rites controversy#Pope Clement XI.27s decree|decl... - 18th century inventions (2219 bytes)
4: * [[1701]]: [[Seed drill]]: [[Jethro Tull (agriculturist)|Jethro T...
11: * [[1731]]: [[Sextant]]: [[John Hadley]]
18: * [[1767]]: [[Carbonated water]]: [[Joseph Priestley]]
34: * [[1791]]: [[Steamboat]]: [[John Fitch]]
35: * [[1791]]: [[Artificial Teeth]]: [[Nicholas Dubois De Che... - Alois Senefelder (3440 bytes)
1: '''Johann Alois Senefelder''' ([[6 November]] [[1771]], [[Prague]] &...
3: ...ame an actor and wrote a successful play ''Connoisseur of Girls''.
5: ...e to afford to publish a new play he had written, Senefelder experimented with a novel etching techniq...
7: ...workable form, perfecting both the chemical processes and the special form of [[printing press]] requi...
9: ...sh. ''A Complete Course of Lithography'' combined Senefelder's history of his own invention with a pra... - Opera (25153 bytes)
3: ...sisting of a [[drama|dramatic]] stage performance set to [[music]].
5: ...al ensemble]] ranging from a small instrumental ensemble to a full symphonic [[orchestra]].
7: ...ebate since the 17th century and earlier in the case of all vocal works. The visual arts, such as [[p...
9: ...], [[mezzo-soprano]] and [[soprano]]. Each of these classifications has subcategories, such as lyric ...
11: ...a, the continuo-only practice was referred to as "secco" (dry) recitative, while orchestral-accompanie... - Wolfgang Amadeus Mozart (12500 bytes)
1: ...ng his lifetime, Mozart was admired by later composers and his works are frequently played today.
11: ...ally, he developed very rapidly and began to compose his own works at the age of five.
13: ...l and cold weather may have contributed to his subsequent illness later in life.
15: During his formative years, Mozart completed several journeys throughout [[Europe]], beginning wi...
17: ...mb|left|250px|Mozart's birthplace at 9 Getreidegasse, [[Salzburg]], [[Austria]]]] - Jet engine (22370 bytes)
1: ...gia, USA. The tunnel behind the engine muffles noise and allows exhaust to escape. The mesh cover at t...
2: ...aircraft]]. The principle of all jet engines is essentially the same; they accelerate a [[mass]] (air ...
4: ...ontinuously. The engine generates [[thrust]] because of the [[acceleration]] of the air through it&mda...
6: ...ch more efficient. Very small aircraft generally use conventional [[piston engine]]s to drive a propel...
8: ...is strongly influenced by the ratio of the compressed air's [[volume]] to the exhaust volume. In a [[t... - Assyria (13688 bytes)
1: ...y peoples in northern Iraq and neighboring areas, see [[Assyrian]].''
12: This region seems to have been ruled from [[Akkad]] (northern Ba...
15: ...te, and had special tax status. They must have arisen from a long tradition of trade between Assur and...
17: ... in Anatolia ceased trade activity, probably because the goods of Assyria were now being traded with t...
19: - Fourth Amendment to the United States Constitution (10692 bytes)
1: ...st unreasonable [[search and seizure|searches and seizures]].
5: ...e to be searched, and the persons or things to be seized.''
10: ...itution as the Fourth Amendment, this pivotal clause stands as a testament to the nation's commitment ...
12: ==The Text and Purpose==
14: ...e to be searched, and the persons or things to be seized."
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