That is the correct scansion for that line - the poem is written in dactylic hexameter - and the stressed and unstressed syllables don't alternate. The patterns of stressed and unstressed syllables alternate, but in this case, the pattern is X / /, not X / or / X. The best guideline is to say the line normally and be patient.
An isobar refers to all of the nuclides of all elements that have a particular atomic mass. For example, helium-6 is one of the many isotopes of helium. The isobars of helium-6 are hydrogen-6, lithium-6, beryllium-6, and boron-6.
â tom skilling, chicagotribune.com, Ask Tom: What determines how isobars are drawn on weather maps?, 13 May 2017 These example sentences are selected automatically from various online news sources to reflect current usage of the word 'isobar.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.