1 The slave trade was abolished in the District of Columbia. 2  The Fugitive Slave Act made any federal official who did not arrest a runaway slave liable to pay a fine. This was the most controversial part of the Compromise of 1850 and caused many abolitionists to increase their efforts against slavery.
What is Galvalume? GALVALUME sheet steel coating is an alloy of 55% aluminum, 1.6% silicon, and the balance of zinc by weight, this coating is approximately 80% aluminum.
COLTAN (Columbite-Tantalite) is a dull metallic ore found in major quantities in the eastern areas of Congo. When refined, COLTAN becomes metallic Tantalum, a heat-resistant powder that can hold a high electrical charge.Columbite ((Fe, Mn, Mg)(Nb, Ta)2O6: Iron Manganese Magnesium Niobium Tantalum Oxide) is the most abundant niobium mineral and is used in alloys for improved strength.hen refined, COLTAN becomes metallic Tantalum, a heat-resistant powder that can hold a high electrical charge. Columbite ((Fe, Mn, Mg)(Nb, Ta)2O6: Iron Manganese Magnesium Niobium Tantalum Oxide) is the most abundant niobium mineral and is used in alloys for improved strength.