Travels and Images
WEEK 10 2006
Sun- Mon- Tue- Wed- Thur- Fri- Sat- Next Week
Picture of the Week
Saturday 11 March
- not too much going on - cold and threatening. In late afternoon - snow!
Friday 10 March
Friday - it was cold.
Indeed, it actually snowed! All day, out on the base, we could see snow
flurries about the valley, in the distance. No snow at Edwards itself,
but excited phone calls from friends in town reported: snow. When I got home there was just a dusting going on.
More cold is predicted for tomorrow.
I've discovered that there may be a licensed accessible copy of Gridgen
on an Linux box here at Dryden. If I can get access to it then I should
be able to do more than run CFL3D test cases pregenerated by others...
Thursday 9 March 2006
- home, sick. Went to the dentist, and then just felt blah, so I stayed home. Oh well, it gives me time to surf the blogs...
This is cool. Or creepy. You can be told, can intellectually understand, that you don't actually see
the world; that vision is really just a construct of the remarkable
computer in the optic nerves, and of the brain itself. But to see it
demonstrated so clearly!
Book #14 is Black Bodies & Quantum Cats,
by Jennifer Ouellette. It's a collection of science writing, given to me a
Christmas by my sister V, and I've been working my way through it, a
few chapters at a time. It's good reading - most of the science stuff
is at a lighter level than last years Schrodinger's Kittens, but the
biographies and historical parts were also interesting. You don't get
that part of science in school, or at least, not much.
Though in the early years, grammar school, you do get a fair bit of
bowdlerized science history, now that I think of it. It makes the
subject a little more human I suppose, a little more approachable, for
Wednesday 8 March 2006
- ran across an interesting page, showing the location of ships worldwide. It's fairly slow to load, but interesting. [via Marginal Revolution] At first I thought "What a lot of ships", but then, "That's all? For the entire world?" You can zoom in on the plot, select different categories of vessel, look at tides, and so on. Neat.
There was a similar page for aircraft over the USA that I linked to once, but I think it went away.
Aviation Week Magazine has an expose on the Blackstar, supposedly a super secret two-stage-to-orbit launcher. Cool article, though I'm not sure I actually believe it. [via Hobbyspace]
Tuesday 7 March
Tuesday - back at work, running some test cases. The results match fairly well, for several test cases, but the parallel speed up isn't as good as I'd like. The published results showed a super-linear speed up with the number of cpu's, and I'm only seeing about half that
speedup. The published results were for the most part done on clusters
of large-cached SGI Origin 2000's with a very high speed interconnect,
I'm using a cluster of relatively small-cached Northwood 2.4Ghz Pentium
That may explain it. I think I may email the code maintainers to see what they have to say.
The Celestron Sky Scout. Somebody was reading my mind last year...
Monday 6 March 2006
Monday - on the road back south again.
Sunday 5 March
Sunday - up at my Dad's. It was a nice
day to travel yesterday - broken clouds with sun sparkling on the snow
in the pass, and on the green grass in the central valley. I finished Book #13, The Pirate Coast, by Richard Zachs, on the way up (an audio book). A good book - having read Lydia Bailey
many years ago I cringed at times, knowing what was coming next. But
there was a lot of historical insight into Jefferson the president,
Captain Bainbridge, the politics of the time, and of course, the
self-doomed William Eaton. There is a problem with audio books- the
lack of maps to follow, I have to say. It would have been nice to
follow Eaton's path from Egypt to Derna on a good map. Eaton's own map (of French origin) was apparently terrible, and caused him to mis-estimate distances repeatedly.
My brother and I were to move the boat to a new marina this weekend, but it's storming, with gale warnings out. Some other time.