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.
A current account surplus increases a nation's net foreign assets by the amount of the surplus, and a current account deficit decreases it by that amount. A country's balance of trade is the net or difference between the country's exports of goods and services and its imports of goods and services, ignoring all financial transfers, investments and other components, over a given period of time.