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Iron forging was invented around 1150 BC. Iron is much stronger than [[bronze]].
Iron forging was invented around 1150 BC. Iron is much stronger than [[bronze]].
It was used in [[construction]] before [[steel]]. The [[Eiffel Tower]] and [[Golden Gate Bridge]] are made of iron, as is the [[Iron Pillar of Delhi]].
It was used in [[construction]] before [[steel]]. The [[Eiffel Tower]] and [[Golden Gate Bridge]] are made of iron, as is the [[Iron Pillar of Delhi]].
Iron [[oxidize]]s in water. Iron oxides are called [[rust]]. It is one of magnetic elements ([[nickel]] and [[cobalt]] are the others). Iron is used to make steel, along with carbon and other metals.
Iron [[oxidize]]s in water. Iron oxides are called [[rust]]. It is one of magnetic elements ([[nickel]] and [[cobalt]] are the others). Iron is used to make steel, along with carbon and other metals. It is the most common element of the Earth's core.
Iron is found in [[red blood cell]]s in the form of [[hemoglobin]].
Iron is found in [[red blood cell]]s in the form of [[hemoglobin]].