Corazón Frágil
Originally uploaded by Dr Case
Another bit of (sort of) anatomically-accurate street art.
Monthly Archives: January 2008
64-bit Carbon (where are you?)
Dear Apple,
Doing away with 64-bit Carbon was a very bad idea. I am not pleased. It has made my life very difficult.
–Brock
New Handlebars (and brakes/shifters)
Bicycle commuting, and using a bicycle as one’s main mode of transportation in general, is an interesting thing. Before starting to do it on a regular basis, it seemed so mysterious. How does one handle rain? Snow? What about transporting large or oddly-shaped objects? What about really hot weather? Do you shower when you arrive?
Videoblogging with iMovie
I’m planning on doing some more advanced videoblogging in the future, including screencasting and perhaps presentations. As such, I decided to give iMovie a try. Combined with an iSight, it’s a beautiful thing, and much easier to use than I expected.
Here it is (the subject matter is not serious) with an homage to Ze Frank:
It all begins when the gates open.
Maria has an excellent little vignette about nerve firing (which is very very similar to cardiac cells firing) over at intueri. Here is an excerpt (whose prose is typical of her excellent writing):
Sodium ions flood into the single brain cell through the gates of channels linking the exterior and interior of the neuron. Other channels along the length of the cell follow suit, opening more gates to allow more sodium ions in. A deluge of positively-charged atoms overtakes the single cell.
Other channels follow the precedence, though they selectively permit calcium, not sodium, ions to join the influx. The excess positive charge soon beckons the potassium channels to open and, with gusto, potassium ions flee from the interior of the cell.