Muons, gluons, futons
When my wife is intrigued by the cover of a particle physics magazine, as she was with the February issue of symmetry, you know your editors and designers are doing a good job.
In regard to John Womersley's article, "Beyond the Standard Model," let me suggest that physicists might find some of the missing matter in the cobwebs and dust bunnies that mysteriously appear in my office. I've also pondered the whereabouts of thoughts that fly out of my head, and perhaps the next Einstein can explain where they go. Finally, in addition to muons, gluons, futons and the like, might I suggest you look for the do-over, which would be a handy particle to have.
Bill Dietrich, Anacortes, WA
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