Margaret and Christine Wertheim: why mathematicians can’t see lettuce (from ted)
wonder
some quick sketches (development of the heart)
These are quick sketches drawn from a series of hand made plastic models of the development of the heart
International Dawn Chorus Day tomorrow 4 May
Make sure you get up early to hear the dawn chorus. For Perth that’s about 0556 (around about or just shortly after nautical twilight). For anywhere else in the world you can calculate your twilight here http://www.ga.gov.au/geodesy/astro/ (but you need to know your lat and long)
a tour through the vertebrates
This was one of the guessing panels as part of first year anatomy classes.
Insects Use Plant Like a “Telephone”
“Dutch ecologist Roxina Soler and her colleagues from the Netherlands Institute for Ecology have discovered that subterranean and aboveground herbivorous insects can communicate with each other by using plants as telephones. [via Cellular News] ‘Subterranean insects issue chemical warning signals via the leaves of the plant. This way, aboveground insects are alerted that the plant …
thirsty Koala after the Victorian fires
Amateur footage by CFA volunteer David Tree http://player.video.news.com.au/theaustralian/?WbReiP1p5ONg3JLSMRELswy8O9r9Yt5Z
some relevant past works 5
Part of a daily collage series from 1997 (The nebula of Andromeda as seen through the big telescope at the Yerkes Observatory in Chicago)
dancing cows after drought
At the end of a long drought, cattle, some of whom had never experienced rain, performed a dance of celebration by jumping first on their front and then on their back legs. Unfortunately I cannot find any photos of videos of this phenomena although I once saw a video by Karin Wegsjö of Swedish …
spinifex circle
25 people stand in a growth ring of a spinifex clump in the Great Victoria Desert
Mr February 2008
Thoughts on a pebble
wire Sunday 27 January 2008
Sims metals scrap metal trucks load their ships day and night. Stirling Bridge accumulates small scraps of wire and metal that we find as we walk across the bridge. The quantity is extraordinary.