The human eye long ago solved a problem common to both digital and film cameras: how to get good contrast in an image while also capturing faint detail.
Nearly 50 years ago, physiologists described the retina’s tricks for improving contrast and sharpening edges, but new experiments by University of California, Berkeley, neurobiologists show how the eye achieves this without sacrificing shadow detail.
Continue reading Eye better than camera capturing simultaneous contrast and faint detail
In an updated version of its Stuxnet dossier, Symantec writes that ten initial infections via five consecutive attacks were the starting points for the propagation of the Stuxnet worm. According to the paper, the creators of the worm targeted five specific companies in order to disseminate Stuxnet. Many indicators appear to point towards the conclusion that experts in the US and in Israel jointly developed Stuxnet over a two-year period.
The attacked companies were apparently service providers or other contractors connected with the Natanz uranium enrichment facility. While Symantec didn’t provide any further details such as the names or nationalities of the attacked companies, all of the targets reportedly maintain a presence in Iran.
Continue reading Stuxnet Solved
Last week we dug into the whys and wherefores of using IPv6. Today we’re going to learn all about how to understand IPv6 addressing by breaking it down into nice understandable chunks, and we’ll cover some shortcuts for writing IPv6 addresses. You’ll be able to look at an IPv6 address and understand exactly what it does. In the olden days, it was possible to skate over understanding the binary math behind IPv4 addresses by memorizing the various classes and their address ranges. That won’t work for IPv6. Get yourself an IP address calculator and learn how work out the conversions and calculations, or IPv6 will forever remain a mystery. ipv6calc is an excellent one that runs on Linux/Unix. A bit of Googling will uncover an abundance of Web-based IP calculators and converters. Continue reading Understand IPv6 Addresses
“Please be aware, this will be the final allocation made by IANA under the current framework and will trigger the final distribution of five /8 blocks, one to each RIR under the agreed global policy for the allocation of the remaining IPv4 address space,” APNIC wrote on its website.
IPv4 is dead. Long Live IPv6.
Continue reading Last of the IPv4 Addresses Allocated
My first car had what is called a kill switch that I put in shortly after I had bought it. I was living in LA at the time, the capital of car thefts, and I even though it wasn’t all that fancy a vehicle I wanted to make sure that it was somewhat protected. It was a simple thing: you had to turn the headlights on before you started the car. I thought I was in good shape until I found out how many valets could figure out the sequence (in LA you have to leave your car with valets a lot). This is a good analogy for the same process when it comes time to turn off Internet access to an entire country, whether it is for cybersecurity or censorship. Someone clever will always figure out a way around the blockade.
The idea to protect our own Internet access has been around for some time, and various people have proposed that we do something about it, including Senator Joe Lieberman.
Continue reading The Internet Kill Switch–Strom
DITCH those bifocals. You might soon wearing spectacles whose lenses allow you to see clearly regardless of how long or short-sighted you are.
With age, the lenses in our eyes often lose the ability to change shape enough to focus light from near objects onto the retina – a condition called presbyopia. This leaves people who were already short-sighted unable to focus on either near or distant objects. Bifocals offer a solution by having two lenses in the same frame, but users must get used to tilting their head up or down to switch focus. Continue reading Scratched glasses give perfect vision
Fun Lessons. That is all this is. Might be helpful, might just be a way to structure a mind-wander while waiting for the plane.
Mystery Man’s Seven Scripts You Gotta Read!
The entire site is a blast, but don’t miss the series of recommended 7 scripts by different talented people.
Question: why read screenplays? One could easily watch a film and recognize how the story works (or doesn’t) without having to read the screenplay. So why bother?
Let me offer three reasons:
Continue reading 7 Scripts You Gotta Read
Prepared for today to be the good ol’ days? Net Neutrality is a simple idea, that everyone (and every business) gets access to the same internet. For Americans, this has to do with the taxpayers paying for the original infrastructure and participating for several iterations after that. Different other countries also were participants.
In the background were always the phone companies. Most of the originals would not be recognizable, but there is the fear that they would become further unrecognizable if there is great benefit to treating the internet as a turf-fight, each big communications group grabbing a piece. Google’s back-room agreement this week with Verizon is worth most citizens being interested. Following is the beginning of CrunchGear’s article: Continue reading Good Google/Verizon Net Neutrality View
“If, on the other hand, we use the more measured language of cybercrime, we change the debate. Crime fighting requires both resolve and resources, but it’s done within the context of normal life. We willingly give our police extraordinary powers of investigation and arrest, but we temper these powers with a judicial system and legal protections for citizens.”
Thus begins Bruce Schneier’s latest request that we accept some cyber-reality with our cyber-reduction of rights. The following paragraphs begin the article, but you should read the entire piece at:
Continue reading The Threat of Cyberwar Has Been Grossly Exaggerated