Warping it up!

Fini Alring’s Glossy Tech Zine

Paradox no more?: Black hole information loss

Thursday, June 21st, 2007
Physicist may have finally cracked the black hole information loss paradox that has befuddled physicists for the past 40 years, according to an article accepted for publication by Physical Review D, which concludes that that an outside observer can never lose objects down a black hole.Case Western Reserve University physicists Tanmay Vachaspati, Dejan Stojkovic and Lawrence M. Krauss came to this conclusion after spending a year working on complex formulas to calculate the formation of new black holes.

It’s complicated and very complex,” noted the researchers, regarding both the general problem and their particular approach to try to solve it.

The question that the physicists set out to solve is: “what happens once something collapses into a black hole?”

A Detailed Profile of the Hadron Super Collider

Wednesday, May 16th, 2007
“The New York Times has up a lengthy profile of the Large Hadron Collider. The article covers the basics (size = 17 miles, cost = 8 billion, energy consumption = 14 trillon electron volts) and history but also provides interesting interviews of the scientists who work with the facility every day. The piece also goes into some detail on the expected experiments. ‘The physicists, wearing hardhats, kneepads and safety harnesses, are scrambling like Spiderman over this assembly, appropriately named Atlas, ducking under waterfalls of cables and tubes and crawling into hidden room-size cavities stuffed with electronics. They are getting ready to see the universe born again.’ There are photos, video and a nifty interactive graphic.

Mammatus Clouds Rule!!

Thursday, August 11th, 2005

As most of you don’t know, I am a big cloud fan and it never siezes to amaze how infinite chaos can reveal such beauty. I have never seen this type of clouds before - the Mammatus clouds, remind me of melting snow, and have a remarkable dense substance that makes them very special to look at. I will definitely be looking forward to experiencing these wonders in person.

Photos of the Mammatus clouds are (c) copyrighted by Jorn C. Olsen.

See more Spectacular Mammatus Clouds over Hastings, Nebraska.

Be sure to visit Jorn C. Olsen’s Gallery.

Harvesting and reusing idle compute cycles

Tuesday, July 5th, 2005

Excerpt from source: More on the University of Texas grid project’s mission to integrate numerous, diverse resources into a comprehensive campus cyber-infrastructure for research and education. In this article, the authors examine the idea of harvesting unused cycles from compute resources to provide this aggregate power for compute-intensive work. They will also place this concept in context by offering an overview of a popular commercial software package designed to help achieve this task: the United Devices Grid MP platform.

Several early grid computing projects were focused on the idea of harvesting unused cycles from compute resources and providing this aggregated computing power for work that comprised lots of tasks — from hundreds to millions — that could be executed individually.

Today, there are several commercial and open source grid computing software packages that support this form of distributed computing on the desktop or other nondedicated computing resources. In this article, we will take a look at a popular commercial software package designed to help execute this function: the United Devices Grid MP platform.

Grid MP has several interesting and unique features, including:

* Support for heterogeneous desktops/nodes
* Nonintrusive client execution
* Tolerance to failures of desktop resources

We will provide an overview of the Grid MP features designed for harvesting idle cycles from nondedicated resources, and we’ll describe the types of applications that can effectively use the type of “desktop grid” we’re discussing.

Read the full article:
* Grid in action: Harvesting and reusing idle compute cycles

Also see:
* BOINC (SETI@Home, Einstein@Home, ClimatePrediction.net, LHC@Home, Predictor@Home, Cell Computing (JP))
* Team GiGA Productions Computing Group

Open Source Molecules

Monday, June 20th, 2005

* PubChem - Public Chemical Database

* Slashdot | Open Source Molecules