An example of metaphor in popular science writing:
"At this point John Cade and Bill Brand both seem exhausted, and a bit fed up with one another. In this slumped state John comments that Bill is 'saturated at last'. What he meant was that lithium – at its maximum dose – filled Bill's body, soaking every cell and bathing Bill's brain."
de Moore, G., & Westmore, A. (2016). Finding Sanity. John Cade, lithium and the taming of bipolar disorder. Allen & Unwin.
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Read about examples of science metaphors
Many examples of science metaphors are listed in 'Creative comparisons: Making science familiar through language. An illustrative catalogue of figurative comparisons and analogies for science concepts'. Free Download.