The current record-holder for melting point is tantalum hafnium carbide (Ta4HfC5), a refractory compound with a melting point of 4215 Â°C In other words, you could not heat a rock that high because there's not a furnace or a crucible on earth that could hold it.
DEFINITION of 'Trade Surplus'. An economic measure of a positive balance of trade, where a country's exports exceeds its imports. A trade surplus represents a net inflow of domestic currency from foreign markets, and is the opposite of a trade deficit, which would represent a net outflow. Next Up.
âThe trade deficit has been a thorn in the side of the U.S. economy for the past seven years.â âToday, by contrast, the current account deficit is larger than the trade deficit.â âIf exports exceed imports, there is a trade surplus and if imports exceed exports, there is a trade deficit.â âThus they ultimately contribute to growing budget and trade deficit and foreign debt.â