秋色 ２ (Autumn Colors 2)

　ハナミズキの紅葉。2010年10月19日、堺市中区・鈴の宮公園で撮影。

The autumn color of flowering dogwood leaves. The photo was taken at Suzunomiya Park, Naka-ku, Sakai, on October 19, 2010.

From tweets of yesterday (edited by rephrasing, adding words, etc.)

About Arts–Science Interaction

"Size Matters: Turning Physics Into Art," by Jennifer Ouellette, Discovery News (October 27, 2010) (via About Physics).

About Mathematics

"Large cardinals: maths shaken by the 'unprovable'." A shocking discovery has unsettled the world of numbers, says Richard Elwes. Telegraph (November 9, 2010).

About Physics

"New horizons for Hawking radiation." Evidence for radiation analogous to that predicted near black holes by Hawking has been found in the emission of optical filaments propagating through glass. Physics Viewpoint (November 8, 2010).

[Retweet of pickover's words] "Why Richard Feynman can't tell you how magnets work (video)," Boingboing (November 8, 2010; from Atlantic).