Stories
Slash Boxes
Comments
Search

News for nerds, stuff that matters

Slashdot Log In

Log In

[ Create a new account ]

Tablizer (95088)

Tablizer
  (email not shown publicly)
http://www.geocities.com/tablizer
Anti-OOP proponent

Tablizer (95088)

  Pioneer anomaly seems 70% real[->] 2008-06-15 02:37 Tablizer

Submitted by Tablizer on Sunday June 15, @02:37AM
Tablizer writes "The so called "Pioneer Anomaly" is a slight acceleration of the now-defunct Pioneer probes that doesn't match gravity models, suggesting a mysterious force. Researchers have been subtracting out known forces, such as power-cell heat, to isolate the mysterious portion.

Pioneer Anomaly Project Director Slava Turyshev presented preliminary results of the thermal modeling efforts at a meeting of the American Physical Society. ...The magnitude of the Pioneer Anomaly is so very tiny that it could conceivably result from the uneven radiation of heat from the spacecraft...Turyshev reported that the [heat] model can generate an acceleration that amounts to about 30% of the Anomaly for that distance [25AU] from the Sun.
"
http://planetary.org/programs/projects/pioneer_anomaly/update_20080519.html
+ -
 [+] submission, science, space

  Paul Graham's new Lisp dialect now available 2008-01-30 18:00 Tablizer

Submitted by Tablizer on Wednesday January 30, @06:00PM
Tablizer writes "Paul Graham, the dot-com zillionare who created what is now Yahoo Stores, along with Robert Morris has finally released their revamped dialect of Lisp, called Arc. "Arc is designed above all for exploratory programming: the kind where you decide what to write by writing it. A good medium for exploratory programming is one that makes programs brief and malleable, so that's what we've aimed for. This is a medium for sketching software. It's not for everyone. In fact, Arc embodies just about every form of political incorrectness possible in a programming language."
+ -
 [+] submission, developers, programming

  Animation illustrates Mobius Transformations 2007-11-21 01:24 Tablizer

Submitted by Tablizer on Wednesday November 21 2007, @01:24AM
Tablizer writes "Science News describes a youtube sensation whereby Mobius transformations can be described simply as a linear projection through a sphere to a plane. The coolest transformation is the inversion, in which a rectangular image can be turned inside out. I'd like to see this transformation on actual images (but not goatse, please)."
+ -
 [+] submission, science, math
Submitted by theodp on Saturday July 07 2007, @12:20AM
The WSJ confirms earlier reports that Sprint Nextel is terminating the contracts of subscribers who call customer service too much (reg.). The 1,000 or so terminated subscribers called an average of 25 times a month — 40x times higher than average — according to a company spokeswoman, who also noted that a large number of calls from these customers were related to billing issues.
+ -
 [+] , money

  Linux Developers Considering Move To Eclipse[->] 2007-07-06 21:51 The Slashdolt

Submitted by The Slashdolt on Friday July 06 2007, @09:51PM
The Slashdolt writes "Has the time come for linux developers to move away from the trusty old tools like Vim and Emacs? Some linux developers feel that time has come and are proposing a move to Eclipse as a Linux development environment. I wonder if Linus' opinion has changed over the last seven years."
http://www.linux-watch.com/news/NS4521261966.html
+ -
 [+] submission, developers, programming

  Elaine Chao: US workers are smelly complainers 2007-07-04 03:10 Tablizer

Submitted by Tablizer on Wednesday July 04 2007, @03:10AM
Tablizer writes "According to Parade Magazine, Labor Secretary Elaine Chao says American employees are rude and have B.O., and this is allegedly why foreign workers are preferred. "U.S. employers say that many workers abroad simply have a better attitude toward work. 'American employees must be punctual, dress appropriately and have good personal hygiene,' says Chao. 'They need anger-management and conflict-resolution skills, and they have to be able to accept direction. Too many young people bristle when a supervisor asks them to do something.'" Do we need to reshape ourselves into compliant borg?"
+ -
 [+] submission, politics, republicans

  Jupiter moon pukes into space: probe movie 2007-06-09 23:45 Tablizer

Submitted by Tablizer on Saturday June 09 2007, @11:45PM
Tablizer writes "The New Horizons probe caught the moon Io in the act of barfing into space. "This five-frame sequence of New Horizons images captures the giant plume from Io's Tvashtar volcano. Snapped by the probe's Long Range Reconnaissance Imager (LORRI) as the spacecraft flew past Jupiter earlier this year, this first-ever "movie" of an Io plume clearly shows motion in the cloud of volcanic debris, which extends 330 kilometers (200 miles) above the moon's surface...The appearance and motion of the plume is remarkably similar to an ornamental fountain on Earth, replicated on a gigantic scale.""
+ -
 [+] submission, science, space
  • Nothing More

  Scorchin' in-memory db benchmark with 1 TB RAM 2007-05-29 02:30 Tim's Journal

Submitted by Tim's Journal on Tuesday May 29 2007, @02:30AM
Tim's Journal writes "I've been investigating machines with large amounts of RAM for quite a few months now. I'm convinced that the distributed-centralized computing paradigm oscillates, and that the next few years will bring about monster computers with, in particular, tons of RAM, but maybe fewer processors. My sleuthing this week led to the Altix 4700. Emerging out of the ashes of bankruptcy, it is SGI's new dream machine. They boast a mind-numbing 128TB of shared memory capacity decoupled from the number of processors. This is important. For a number of years, SGI has had their NUMA* technology, which essentially promises shared access to all RAM by all processors. In most multi-processor machines, each processor really has direct access to about 16GB RAM or so (multiplied by number of cores...). If you've ever done any sort of parallel computing, it makes a difference. Essentially you have N machines each with M GB of RAM, instead of N processors sharing N*M GB of RAM. Think about inverting matrices... or hosting databases in memory. The scoop today is a database benchmark on the University of Louisiana's 160-core Altix 4700. In particular, the database is an in-memory database system (IMDS), which means that the database is entirely hosted in memory. This is important, because there are a lot of optimizations that SQL Server, MySQL, Oracle, do to compensate for the fact that databases sit on slow hard drives and memory is hard to come by. Fancy things like memcaches, etc. These all go away if you have enough memory to store the whole thing simply in RAM. Here are the goods:

For a simple SELECT against the 1.17 Terabyte, 15.54 billion row database, eXtremeDB-64 processed 87.78 million query transactions per second using its native application programming interface (API) and 28.14 million transactions per second using a SQL ODBC API. To put these results in perspective, consider that the lingua franca for discussing query performance is transactions per minute; In more complex JOIN operations, the benchmark report documents performance of 11.13 million operations per second with the native API, and 4.36 million operations per second using SQL ODBC; [emphasis mine]
In case you were wondering, IMDS speed >> database hosted on RAM drive. (I also asked this question.) You would expect it to be a little bit faster, but it turns out that all the extraneous operations when you don't plan on being in RAM really take up a lot of time. Of course, the benchmark comes directly from McObject's marketing department, so YMMV."
+ -
 [+] submission, hardware, supercomputing
  • Nothing More
Submitted by chewjekhui on Tuesday May 29 2007, @12:39AM
chewjekhui writes "Hi, welcome to the full review of Microsoft Office 2007. I would discuses about all the features of Office 2007. I would divide the article into a few parts. Each part would compare features of PowerPoint 2007, PowerPoint 2003 and their rival's OpenOffice. Visit http://saferpc.blogspot.com/2007/05/microsoft-offi ce-2007-vs-openoffice-v20.html for the full review"
+ -
 [+] submission, features, microsoft
  • Nothing More

  Does SPF really work? 2007-05-29 00:08 Intelopment

Submitted by Intelopment on Tuesday May 29 2007, @12:08AM
Intelopment writes "My Domain name has recently been used a lot as the REPLY field by some inconsiderate spammer and my ISP has suggested that I consider using the Open SPF service (http://openspf.org/) as a way to stop spammers from using my domain name for their REPLY field. From what I can tell it requires the receiving mail server to actually participate in the SPF service, which is where I get my doubts. Does anyone have any experience with this service? Does it work? Are many ISPs using openSFP?"
+ -
 [+] submission, askslashdot, spam
  • Nothing More

  Sun to use Intel 2007-01-22 01:41 snilloc

Submitted by snilloc on Monday January 22 2007, @01:41AM
snilloc writes "AP reports a source close to the deal says Sun will be introducing Intel based server products and that Intel will "endorse" Solaris. Sun will continue to produce AMD and Sparc products. Official announcement set for some time Monday."
+ -
 [+] submission, hardware, sun
  • Nothing More

  'You're hired. Don't forget to bring a chair' 2007-01-21 15:18 netbuzz

Submitted by netbuzz on Sunday January 21 2007, @03:18PM
netbuzz writes "You just landed a job at an exciting new Silicon Valley company and the boss asks you to ... bring your own chair? Guess this really isn't the '90s anymore. Yankee parsimony has replaced conspicuous consumption, according to an article in the San Francisco Chronicle. One exec even said "no" to T-shirts. ... Tell me foosball's still OK.

Blog:
http://www.networkworld.com/community/?q=node/1061 9

SF Chron story:
http://www.sfgate.com/cgi-bin/article.cgi?file=/c/ a/2007/01/21/MNG0JNMFQE1.DTL"
+ -
 [+] submission, money
  • Nothing More

All trademarks and copyrights on this page are owned by their respective owners. Comments are owned by the Poster. The Rest © 1997-2008 SourceForge, Inc.