If only magnesium were less expensive. According to researchers at the Pacific Northwest National Laboratory (PNNL), based in Washington State, USA, the magnesium used in the production of lightweight alloys for cars and aeroplanes is seven times more costly than the steel employed in the same applications.ccording to researchers at the Pacific Northwest National Laboratory (PNNL), based in Washington State, USA, the magnesium used in the production of lightweight alloys for cars and aeroplanes is seven times more costly than the steel employed in the same applications.
Definition of polemic for English Language Learners. : 1  a strong written or spoken attack against someone else's opinions, beliefs, practices, etc. 2  polemics : the art or practice of using language to defend or harshly criticize something or someone.
So I will begin by writing not about the history of Populism, or the history of populism, but the history of the term âpopulismâ. As common nouns the words âpopulismâ and âpopulistâcame into use rather late, almost always in a polemical context, and social scienceâs appropriation of this weakly-defined term (generalized from several very dissimilar political movements) was also tendentious and polemical.