An 1882 map by Richard A Proctor showing the cones of visibility of the 2012 transit of Venus (which happens tomorrow). It’s remarkable partly as it’s so well designed, and partly as it’s over a hundred years old but matches the modern map.
Paul Mison's random stuff that doesn't go elsewhere. Is it microblogging, or microactivity?
(Previously known as 'tumblr is my sock drawer', for reasons that are somewhat unclear.)
the cones of visibility of the 2012 transit of Venus