melting point za 99.99% Fe jsete 1535Smrcak15 wrote:Connaisseur Karlin wrote:Zeljezo se spominje u svim svetim zabrahamskim skriptama, a evo obrzlaozenje o korsitenju zeljeza:Smrcak15 wrote:evo jedno pitanje sa sve ateiste ovog foruma
Kako je Muhammed mogao znati na koliko se tacno stepeni topi zeljezo, pa to naznaci u Kur'anu?
De Wette, Lehrbuch der Hebräisch. Jüdischen Archäologie, §§ 105, 106, Leipsic, 1814;Iron ("barzel," "parzel"):
The mountains of Palestine contained iron ore (Deut. viii. 9). Its value was less than silver and more than stones (Isa. lx. 17). As was also the case in early times among the Greeks and Romans, iron was little used by the Hebrews; and it is mentioned only four times in the first four books of Moses (see Iron). Many understand the word "paldah" (Nah. ii. 4) to mean "steel," a preparation of iron; but the correctness of this interpretation is uncertain. Iron can be broken in pieces with a hammer. In this it is a symbol of the Torah, which has numerous attributes and characteristics (Suk. 52b; see Tos. ib.). A teacher of the Law must be as hard as iron (Ta'an. 4a). To forge and harden iron it must be put red-hot into cold water (Shab. 41a). Iron was heated on coal; and there are halakic regulations for doing this on the Sabbath (ib. 130a). Iron as well as lead was used on the yokes of animals (Kelim xiv. 4, 5). The Rabbis were acquainted with the magnetic stone which attracts iron (Soṭah 47a, "eben sho'ebet").
zeljezo je koristno od 5000pne![]()
idemo dalje:
Iron was the first magnetic metal discovered. Lodestones were used by ancient navigators because they could be used as compasses, pointing to the magnetic north pole; this was described by the ancient Greek philosopher Thales of Miletus in 600 BC. Lodestones were made from magnetite, which is a naturally occurring oxide of iron. Magnetite’s formula is FeO.Fe2O3.
Tocka topljenja/melting point" 1535C
https://www.chemicool.com/elements/iron.html
http://www.chemicalelements.com/elements/fe.html
Fe se topi na 1535
Fe3O4 se topi na 1538
ne pricaj gluposti,Fe3O4 se topi na 1538
https://sh.wikipedia.org/wiki/Gvo%C5%BE ... III)_oksid
Fe3O4 je Gvožđe(II,III) oksid je hemijsko jedinjenje, koje ima molekulsku masu od 239,596 Da.
26 Fe iron
https://en.wikipedia.org/wiki/Melting_p ... data_page)
1538 °C
https://en.wikipedia.org/wiki/Iron
Melting point 1811 K (1538 °C, 2800 °F
Melting Point 1538 °C
http://periodictable.com/Elements/026/data.html
Iron (Ferrum) Fe 26 1811 K 1538
http://www.chemistry.patent-invent.com/ ... point.html
Melting Point: 1538 °C
http://periodic.lanl.gov/26.shtml
eciklopedia Brittanica
melting point 1,538 °C (2,800 °F)
https://www.britannica.com/science/iron ... al-element
(1,538 degrees Celsius
https://www.livescience.com/29263-iron.html
znaci 1538 je vise tacno nego 1535
nije cisto zeljezo, Fe3O4 melting point 1538 , kme kme kmeeee



