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 trade-off is a situational decision that involves diminishing or losing one quality, quantity or property of a set or design in return for gains in other aspects. In simple terms, a tradeoff is where one thing increases and another must decrease. Tradeoffs stem from limitations of many origins, including simple physics - for instance, only a certain volume of objects can fit into a given space, so a full container must remove some items in order to accept any more, and vessels can carry a few