Trade involves the transfer of goods or services from one person or entity to another, often in exchange for money. A system or network that allows trade is called a market.
The product of mental labor — science — always stands far below its value, because the labor-time necessary to reproduce it has no relation at all to the labor-time required for its original production.
Karl Marx Addenda, "Relative and Absolute Surplus Value" in Economic Manuscripts (1861–63).
One of the main problems of the use of nuclear energy is nuclear waste management. An EU-funded project focuses on assessing the use of minor actinides from the used nuclear fuel as a fuel for next-generation nuclear reactors.
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