160 karma · joined December 18, 2009
Degrees in one inch - arctan(1/24)2 = 4.77 "Data points" in eye for one inch, 12" away: 4.7750*2 = 477 (magic number cited in article)
Why the last multiplication by 2? The eye doesn't see pixels, it sees color difference, which means that the limit (not the minimum) is when two of those pixels cover the same "cycle" -> 1 color change in the cycle (in any case, that's how I understood the article).
(From Zune.net: "The songs are yours to play on up to three computers, and three Zune players and phones, for as long as your Zune Pass is valid." and "Additionally, a Zune Pass gives you 10 song credits to redeem each month. You can keep these songs forever - they become part of your permanent collection.")
Don't be intrusive, it's not necessary, and will probably scare away people. Just explain why the website isn't working perfectly.
But I still wonder how fast the birthday paradox/problem would hit such an identification system. (http://en.wikipedia.org/wiki/Birthday_problem)
It's the definition!
But I agree, that background image is really horrible.
If you meant something else, could you explain it a bit clearer?
> Engineering components exist in the real world
Yes, and computers don't exist in some alternate dimension. People might forget it sometimes, but if you're a real engineer, you should know how a computer works, and know it's not magic, it's physics that make you're computer work. Software is merely an abstraction. Secondly, math is also engineering, but you can't touch it, can you?
> Engineering components interact in more predictable ways
No, wrong again. Software is perfectly predictable (BTW, if you want, you could build a mathematical model of every program. 100% predictable). If you make mistakes in other engineering branches you can get some strange results too.
> Engineering has fewer fundamental midcourse design changes
I don't see the link between engineering and design changes here. Are you trying to say that no single engineering project changes during it's life? Just look at prototypes of cars, those changes are quite massive. Secondly, ask yourself this question: How much does it cost to change a rocket design midway compared to a software program?
> Is software development a science?
Well, that's the point, in my opinion it's engineering.
> Writing software is more an art than an engineering discipline
Some think so, but really, it should be seen as engineering. Why? Artists make choices related to what they like, how they feel. Engineers make objective choices (or at least they should, nobody is perfect).
Rant finished!