I wonder how good the size tolerance needs to be? Exactly 1mm when scanned, we think?
I don't think size tolerance can be too important, though relative positioning of the circles will be. People have reported that they can't load certain images which contain part of a dollar bill into photoshop. If the image was scanned outside of photoshop then it can't know the DPI used for scanning (or printing, if done outside of photoshop).
I haven't found any software which I have which contains the anti-counterfeiting code. From a scanned and enlarged image I calculated the coordinates and came up with a PS file which looks to have the right pattern when compared with 10 pound and 10 Euro notes. Anyone want to check for me?
According to Space.com, Scaled Composite's SpaceShipOne flew its first rocket-powered flight today, the 100th anniversary of the Wright Brothers' 12-second first flight.
Lots of commentators on the news and slashdot have been linking spacecraft and aircraft. Why? What's the connection? Rockets (at least in the form of fireworks) preceeded manned aeroplanes, though stories I've read today would have you believe that spaceflight is a development of aeroplanes. True, they often share the same technology but the physics are different - one uses smart aerodynamics and the other brute force!
Why? One advantage I've noticed with transparencies is that the presenter can look at the slide while still facing the audience. When using an LCD projector far too many presenters face the screen when talking. Of course the ideal setup (LCD projector for slides, 2nd screen for presenter showing notes view) would eliminate this problem, but I've never been lucky enough to use such a system. (Do they exist?)
4) rehearse your presentation so that you know it by heart - nothing irritates me as much as someone who just reads his slides to the audience.
Actually I reckon that should be "know what you want to say". I use a crib sheet otherwise I'd forget the important points, but I do agree that just reading the slide makes a boring presentation.
You'll be waiting 20 years before you see a 1 gigapixel camera.
Let's see. Assume total number of pixels increase every 18 months (Moore's law, of sorts, but I'm not entirely sure if that should be applied to total pixels or in one dimension only). Highest resolution generally available is say 10M, so we need an increase of about 100x, or about 6.6 x 18 months = 9.9 months. Not even 10 years!
That's kind of funny, although it seems that this virus requires user interaction in order to spread, so we can't really blame M$ for this one:P
The second sentence of the article states:
Users whose PCs are not patched against the Microsoft flaw this worm exploits will be infected just by viewing the message, as will protected users who click on the e-mail attachment.
Unless you're counting "viewing the message" as user interaction apportioning some blame to microsoft is not unfair.
not to mention, you could actually reverse engineer the code from the md5s assuming a) the lines are short enough, b)you have enough memory, c) you have enough processing power. Especially if you have examples from other bits of their code that you can use to make intelligent guesses...
No, you couldn't. MD5 is a checksum. There is a many-to-one mapping, even if you have the computing resources to try all possibilities so you couldn't tell which actual one was correct.
It may be optional, but in my experience of using JunkBuster there are some sites which won't work without a referrer header coming from their site.
If the referrer header does die and those sites have to reconfigure their systems I don't see that as a bad thing. Why should I be treated any differently based on the previous site I have visited, or because I want to
keep my browsing history private?
A Ph D (in engineering and science) is a certification in the ability to do research. Generally theory based, and often without a "real world" product in sight.
I disagree, a PhD is a certification that you can think for yourself and that you can work on your own, using your own inititiative to make progress. My PhD gave me the opportunity to experiment and learn various computer languages (eg, C++, perl, matlab, icon and even some smalltalk). When I was in industry I never had that kind of freedom, everything was just some botched attempt to get the product out of the door without ever having time to try to improve matters. A large proportion of my IT knowledge and experience came about from doing my PhD.
Slashdot Mirror
I wonder how good the size tolerance needs to be? Exactly 1mm when scanned, we think?
I don't think size tolerance can be too important, though relative positioning of the circles will be. People have reported that they can't load certain images which contain part of a dollar bill into photoshop. If the image was scanned outside of photoshop then it can't know the DPI used for scanning (or printing, if done outside of photoshop).
I haven't found any software which I have which contains the anti-counterfeiting code. From a scanned and enlarged image I calculated the coordinates and came up with a PS file which looks to have the right pattern when compared with 10 pound and 10 Euro notes. Anyone want to check for me?
Lots of commentators on the news and slashdot have been linking spacecraft and aircraft. Why? What's the connection? Rockets (at least in the form of fireworks) preceeded manned aeroplanes, though stories I've read today would have you believe that spaceflight is a development of aeroplanes. True, they often share the same technology but the physics are different - one uses smart aerodynamics and the other brute force!
Let's see. Assume total number of pixels increase every 18 months (Moore's law, of sorts, but I'm not entirely sure if that should be applied to total pixels or in one dimension only). Highest resolution generally available is say 10M, so we need an increase of about 100x, or about 6.6 x 18 months = 9.9 months. Not even 10 years!
The second sentence of the article states: Users whose PCs are not patched against the Microsoft flaw this worm exploits will be infected just by viewing the message, as will protected users who click on the e-mail attachment.
Unless you're counting "viewing the message" as user interaction apportioning some blame to microsoft is not unfair.
No, you couldn't. MD5 is a checksum. There is a many-to-one mapping, even if you have the computing resources to try all possibilities so you couldn't tell which actual one was correct.
It may be optional, but in my experience of using JunkBuster there are some sites which won't work without a referrer header coming from their site.
If the referrer header does die and those sites have to reconfigure their systems I don't see that as a bad thing. Why should I be treated any differently based on the previous site I have visited, or because I want to keep my browsing history private?
A Ph D (in engineering and science) is a certification in the ability to do research. Generally theory based, and often without a "real world" product in sight.
I disagree, a PhD is a certification that you can think for yourself and that you can work on your own, using your own inititiative to make progress. My PhD gave me the opportunity to experiment and learn various computer languages (eg, C++, perl, matlab, icon and even some smalltalk). When I was in industry I never had that kind of freedom, everything was just some botched attempt to get the product out of the door without ever having time to try to improve matters. A large proportion of my IT knowledge and experience came about from doing my PhD.