We started Bio620 (Seminars in Cell Biology) yesterday with a guest speaker (more to come) and a discussion of general design principles of cells, a review by Rafelski and Marshall.

Part of the discussion was about how cells become polarized, and so this morning a blog posting caught my eye. It was Elio’s (Moselio Schaecter’s) blog Small Things Considered, which you absolutely want to follow if you are into Microbiology.

picture showing auroras around the Earth poles

NASA’s Polar spacecraft captured the first-ever movie of
auroras dancing simultaneously around both of Earth’s
polar regions.

Today’s posting  refers to polarity in bacteria and, and discusses an article with some novel approaches to identify molecules associated to poles.

The title is: Polar Enchantment.