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- Steel (28384 bytes)
3: ...iron, but is also more [[brittle]]. One classical definition is that steels are iron-carbon alloys wit...
5: ... [[plasticity (physics)|plastically]] formed (pounded, rolled, etc.).
8: ...l><sub>2</sub></small>— [[Pyrite]]. Iron oxide is a soft [[sandstone]]-like material with limite...
11: ...similarly soft and metallic but can dissolve considerably more carbon (as much as 2.04 wt% carbon at 1...
13: ...ry similar unit cell structure to austenite, and identical chemical composition. As such, it requires... - Iron Age (8996 bytes)
1: ... iron from Swedish Iron Age, found at Gotland, Sweden.jpg|thumb|200px|Iron Age Axe found on Gotland]]
3: ...eeminent. The adoption of this new material coincided with other changes in past societies often inclu...
5: ...an Iron Age]] are examples. The Iron Age was preceded by the [[Copper Age]] and later the [[Bronze Age...
7: ...areas is listed below, broadly in chronological order.
13: ... and a [[battle axe]] with an iron blade and gold-decorated bronze haft were both found in the excavat... - History of science (41710 bytes)
2: Modern [[science]] is a body of verifiable [[empirical...
4: ... change is considered to be so fundamental that older inquiries are known as ''pre-scientific''. Still...
6: ...] concerns the [[Creativity|creative]] process of designing useful objects and systems, which differs ...
11: ...mphasize the view that scientific data is self-evident, value-free, and context-free.
13: ...e, and that there can be [[demarcation problem|no demarcation]] between science and any other form of ... - History of science in the Middle Ages (30877 bytes)
4: ...igation was renewed. Science developed in this golden period of [[Scholasticism|Scholastic philosophy]...
6: ...ong many others. These advances, however, were suddenly interrupted by the [[Black Plague]] and are vi...
14: ...not completely assimiliated by the Roman culture. Debilitated by migrations, barbarian invasions and t...
16: ... culture]] as the [[Dark Ages]]. Nowadays, most modern historians dismiss the use of the term by point...
18: ... Institutionally, these new schools were either under the responsibility of a [[monastery]], a [[cathe...
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