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Comment: For people impacted by this issues (Score 3, Informative) 359

by ssimpson (#45999537) Attached to: GPUs Dropping Dead In 2011 MacBook Pro Models

Comment: Re:Score: -1, Flamebait (Score 5, Informative) 359

by ssimpson (#45999097) Attached to: GPUs Dropping Dead In 2011 MacBook Pro Models

Mainstreaming reporting started in the last few days. The issue has been reported consistently for nearly a year. I and many other impact users have reported faults in stores, reported via Apple Product Feedback in forums and written to Tim Cook to complain. Not only do they ignore the issues reported on the forum but they also delete posts with links to online forums, news stories and petitions. Nice work Apple.....

Apple do little on the issue and offer you a (paid for) repair service to fix this systemic fault. The repair being a replacement board that many users report fails again anyway.

Comment: Schneiers most recent comment.... (Score 4, Informative) 236

by ssimpson (#44782553) Attached to: Most Tor Keys May Be Vulnerable To NSA Cracking

Bruce Schneier http://www.wired.com/opinion/2013/09/black-budget-what-exactly-are-the-nsas-cryptanalytic-capabilities/ stated that "Breakthroughs in factoring have occurred regularly over the past several decades, allowing us to break ever-larger public keys. Much of the public-key cryptography we use today involves elliptic curves, something that is even more ripe for mathematical breakthroughs. It is not unreasonable to assume that the NSA has some techniques in this area that we in the academic world do not. Certainly the fact that the NSA is pushing elliptic-curve cryptography is some indication that it can break them more easily."

I'd not rush from DH to ECC but would strongly recommend a move to 2048-bit or above keys

And have just realised that I haven't posted to Slashdot for many years...And yet somehow my .sig is still relevant. NSA may have dropped their plans for mandatory Escrow 15 years ago after the quote was made...but they didn't change the fundamental goal: to read everything.

Comment: Keith Laumer (Score 1) 1130

by acgetchell (#40928217) Attached to: Ask Slashdot: Most Underappreciated Sci-Fi Writer?

Nowadays folks know his Bolo works, but Dinosaur Beach, Worlds of the Imperium, End as a Hero, and the Retief series were pretty unique for their time. One of my favorite authors.

Dinosaur Beach has to be one of my favorite novels, its a cracking good time travel novel with transhumanism before such was known.

http://www.dinosaurbeach.com/

Biotech

One Variety of Sea Slugs Cuts Out the Energy Middleman 232

Posted by timothy
from the would-never-leave-the-house dept.
dragonturtle69 writes with this story, short on details but interesting: "These sea slugs, Elysia chlorotica, have evolved the ability to gain energy via photosynthesis. Forget about genetic modifications for sports enhancements. I want to be able to never need to eat again — or do I?"

Comment: Re:Science Fiction (Score 1) 348

by acgetchell (#28224845) Attached to: String Theory Predicts Behavior of Superfluids

There are several very cool results from String/M-theory, but nothing that can be fully understood without the mathematics. But a theory that fully explains all interactions, including matter fields, with supersymmetry and supergravity arising naturally from it, an explanation of the heirarchy problem, and use of perturbation theory and renormalization for gravitons which are generally non-renormalizable, is interesting.

Loop Quantum gravity is interesting too, especially for its background independence, but it will never explain matter fields, and the semiclassical sector is currently lacking. By contrast, string theory has a natural extension to classical general relativity.

Creating hackergotchis using the GIMP->

From feed by nffeed
A hackergotchi is a picture of a person's head that's used as an avatar for identification on a blog. Any region below the neck is cut out, as are any portions of the picture that don't include the head. You can create a hackergotchi easily with a digital camera and the GIMP.
Link to Original Source
Java

+ - Quantifying Recursion In Java 6

Submitted by
aahmad
aahmad writes "If you are like most developers, you believe that although recursive solutions to problems are elegant, they neither perform nor scale as well as their iterative cousins. In the expose, "Quantifying Recursion on the Java Platform", Amin Ahmad blows the pants off this fallacy: all other things being equal, recursive solutions run a factor of 2x-3x faster than iterative ones on Java 6.

That said, the article acknowledges that recursive solutions do not scale well which greatly limits their applicability. I'm curious to hear about other slashdotters experiences with recursion, in particular on the Java platform."

Polymer physicists are into chains.

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