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IeSF Wants International Game Tournaments Segregated By Sex [Updated]

rnbc Re:Hippism? (221 comments)

PS: Sorry, it's called "Equestrianism" in english, sorry :P

None of the equestrian disciplines are segregated by sex as far as I know...

about 7 months ago

IeSF Wants International Game Tournaments Segregated By Sex [Updated]

rnbc Hippism? (221 comments)

Hippism is not segregated, as far as I know, and is an olympic sport...

about 7 months ago

EU Court of Justice Paves Way For "Right To Be Forgotten" Online

rnbc Just use Baidu or another search engine... (199 comments)

Just use Baidu or Yandex or another search engine..., it's a multipartite world, choose your poison :)

The decision is effectively unenforcable globally. For example, baidu is great for searching google-MPAA-censored content, etc.

about 8 months ago

Why Facebook Is Stressing You Out

rnbc How to solve those issues once and for all (227 comments)

I solved those issues long ago by behaving in the same way for all social circles. I've set for myself what I think are acceptable and honorable behavior patterns and abide by them always. Take it, or just leave me alone, it's that simple. That includes my friends, co-workers, parents, and just about anyone I know. It means I have to restrict myself a bit, but it also means I'm essentially a better person.

PS: yes, some persons don't like it, but they are a tiny minority.

more than 2 years ago

Nokia Puts 41MPixel Camera In a (Symbian) Phone

rnbc Not too many pixels in fact. (204 comments)

Actually since this is a near diffraction limited lens working at f/2.4 the spot size is going to be about 0.56um * 2.4 ~ 1.344um on the focal plane. The cycle size is about double, or 2.688um.

Considering it uses a Bayer array, and the pixels are spaced at 1.4um, the green pixels will be spaced at 2um (minimum distance to next green pixel). To properly sample you need at least 2 pixels per cycle (said Mr. Nyquist), but since pixels are not exactly points (they have an area) astronomers working in diffraction limited imaging advise 3x sampling in practice.

What this means is you would need a pixel size of 2.688/3/sqrt(2) ~ 0.63um (or 0.9um if using a Foven-style sensor) to properly sample this lens. 1.4um vastly undersamples the lens, as can be seen near the central area in the available samples: they are razor sharp in the central area, and otherwise are limited by aberrations.

A practical article describing this, with example images, can be seen here:


more than 2 years ago

World's First Formally-Proven OS Kernel

rnbc The specification may be buggy in itself... (517 comments)

In the few programs I've made that had to be secure, by all means, bugs in the specification were found, years later, that allowed system compromise. Assumptions were made about other systems (that allowed us to authenticate users, validate user-classes, etc) that were false under some circumstances, for example, making a break-in possible even if the core itself was not buggy in itself. It would, essentially, maintain it's integrity but be fooled by others...

This is just like in cryptography: a secure algorithm does not guarantee whole system security.

Still a great achievement!

more than 5 years ago

Study Finds the Pious Fight Death Hardest

rnbc They are religious because they don't accept death (921 comments)

IMHO most persons are "religious" because they fear death to begin with and can't accept they are limited in space and time.

Non religious (does not mean atheists) guys tend to accept their condition and see death as perfectly natural and nothing special. they learned to live with it as part of their non-reliousity.

more than 5 years ago

Cell Phones, Missing Persons, and Privacy

rnbc There is a better way.... (295 comments)

In my country at least (Portugal) the police will track anyone missing, but they can't legally tell anybody else where that person is unless the person allows them. Unless it's a minor, of course...

The most they will tell the family by default is "we found it, and it's alive and well".

more than 6 years ago


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