Random notes to self

Kubuntu 12.04 amd64 performance
- I've noticed a marked decrease in performance (read massive lag, must kill offending program with too much memory usage) when I reach 98% of RAM utilised and start using swap disk space. That said, I'm running relatively lag/stutter free.

Advances in computer hardware:
Roughly the Same RRPs: s02au and js02au (note I have a R580 most like JS02AU and it has an i5-520M processor)
http://www.samsung.com/au/consumer/pc-peripherals/notebook-pc/productcompare?prda=NP550P5C-S02AU&prdb=NP550P5C-S03AU&prdc=NP-R580-JS02AU
http://ark.intel.com/compare/64899,47341
Also according to:
http://www.notebookcheck.net/Mobile-Graphics-Cards-Benchmark-List.844.0.html
Pretty much double in 3D mark and Cinebench test scores. I'd imagine something like 2x+ FPS when gaming if GPU bound.

Future posts types:
#online-shopping (all my online/ebay items)
#drupal [projects]
#android [projects]
#3D glasses, video, screens [project/s]

test networked blogs fb app #3

let's hope this is the last time
#3

test networked blogs fb app #2

test #2
X fingers

Also, what's with this FB-Google hate?

test networked blogs fb app

testing the networked blogs FB app's post to FB feature
#1
#1a edited
 

Cuda on linux =3

So following this link here https://help.ubuntu.com/community/Cuda , I got Cuda working on Linux!! (My main Kubuntu 12.04)

The FluidGL thing works really well! If only the colours would change depending on velocity ...

Hiccups:

• Note to self - installed it in default directory /usr/local/bin instead of /opt as suggested by Ubuntu/Cannonical's philosphy thing
• Forgot to install dependencies before building as usual -_-" according to:
Then, install required packages:

sudo apt-get install libxi-dev libxmu-dev freeglut3-dev build-essential binutils-gold

So the plan now is to see if BOINC can utilise some of this CUDA action =)
IF I can get it working that is ...

Copenhagen Suborbitals first LES+capsule test

http://www.wired.com/wiredscience/2012/08/copenhagen-suborbitals-test/?pid=4590&viewall=true

So check out the stuff there.

Or click here for full article right here:

I hope this code from http://bungtutor.blogspot.com.au/2011/02/how-to-make-spoler-in-blogspot-blogger.html works ...

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Every space capsule needs an escape system. But to be sure the safety net isn’t a death trap, it must be tested.
A do-it-yourself spaceflight program called Copenhagen Suborbitals tested their own launch escape system early on Sunday, Aug. 12 in the middle of the Baltic Sea.
The system didn’t quite work as intended. “We had perfect launch, but quickly the entire configuration began to tumble,” said Kristian von Bengtson, co-founder of Copenhagen Suborbitals. “The main chutes clearly did not have complete deployment and the capsule hit water in high speed, buckling the bottom shield.”
Yet failures are expected in any spaceflight program, especially during early hardware tests. Without them, engineers couldn’t learn how their systems truly perform. “The capsule remained intact and kept sending live data from inside the capsule,” von Bengtson said. “From a long list of things that could have gone wrong, we are very satisfied.”
Experience Copenhagen Suborbitals’ exciting launch sequence, and its crushing end, in this gallery.
Above:

Liftoff!

The launch escape system — the space capsule, named Beautiful Betty, and a small rocket — ascends from its seafaring launch pad in a picture-perfect start.
In a full launch, a large rocket would carry the entire system into suborbital space, or roughly 62 miles above the Earth. If something went wrong on the way, the system would detach, with the small rocket delivering the capsule and its crew to safety.
Image: Copenhagen Suborbitals/Picasa

Boom and Splash

The launch was supposed to loft the 950-pound suborbital space capsule, and a 150-pound dummy named Randy inside, to about 3,000 feet. As a video (above) shows, the rocket and its payload quickly spun out of control.
High-speed shots of the launch pad show engine performance, while a camera inside the capsule captures Randy’s unique view.
Video: CphSuborbitals/YouTube

Mobile Launch Pad

Copenhagen Suborbitals ran its tests from a floating launchpad called Sputnik (above). Shown here is the launch escape system rocket, which is attached to the Beautiful Betty capsule with explosive bolts.

Images: 1) Copenhagen Suborbitals/Picasa; 2) Copenhagen Suborbitals/Picasa

Tumble in the Sky

Things looked good until a few seconds into liftoff. At that point, as it arced hundreds of feet into the air, the launch escape system began to tumble out of control. Von Bengtson and his colleagues haven’t had a chance to fully review the sequence, but he thinks the system’s center of gravity moved toward the center of pressure — the firing rocket nozzles — as the rocket burned through propellent.
“If those two centers get too close, you get an unstable rocket,” he said.
Image: Copenhagen Suborbitals/Picasa

Late Separation

As their launch escape system tumbled out of control, Copenhagen Suborbitals didn’t want to remotely trigger the explosive bolts and separate rocket from capsule. That could have unleashed an out-of-control rocket toward their observation ships. Instead von Bengtson waited until the engines had almost stopped burning, then triggered the separation and the capsule’s parachutes.

Images: 1) Copenhagen Suborbitals/Picasa; 2) Copenhagen Suborbitals/Picasa

Big Splash

After separation, the parachutes only partly deployed. The capsule slammed into the water at very high speed, crushing its circular bottom and denting the capsule’s frame.
Image: Copenhagen Suborbitals/Picasa

Rough Recovery?

Despite a very hard splash that caused significant damage, the capsule and Randy the dummy remained intact.
Von Bengtson and his team are now reviewing the launch to understand every moment of their milestone test.

Images: 1) Copenhagen Suborbitals/Picasa; 2) Copenhagen Suborbitals/Picasa

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Dave Mosher is a Wired.com contributor and freelance science journalist obsessed with space, physics, biology, technology and more. He lives in New York City. G+
Read more by Dave Mosher
Follow @davemosher and @wiredscience on Twitter.

Tags: copenhagen suborbitals, DIY, Launch Escape System, Open Space, rocket launch, rockets, space capsule, Tycho Deep Space

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Or just watch the cool vid here: