
In defence of the nanny state
In a society that took seriously our laziness about being nice, an occasional paternalistic reminder would not necessarily constitute an infringement of our “liberty” as that term should be properly understood. Being free should not invariably entail being left totally to one’s own devices, it should also be compatible with being admonished and harnessed. Complete freedom can be a prison all of its own.
It is perhaps in the end a sign of immaturity to object too strenuously to sometimes being treated like a child. Why does the idea of a nanny state always have to be so terrifying? The libertarian obsession with freedom ignores how much of our original childhood need for constraint endures within us, and therefore how much we stand to learn from certain paternalistic strategies. It is not much fun, nor ultimately even very freeing, to be left alone to do entirely as one pleases.
Extract from the BBC article “A Point of View: In defence of the nanny state”.
Filed under Education
Do you want to do a PhD? Think again!
A PhD is not really the smartest thing you can do. The Economist gave an hard look on what you can get out of the graduate title: not much, it seems. It is a low paid job, and what you learn is difficult to use in the work environment. Not to mention the tons of slide/articles you will need to write (from direct experience). As a personal note: do PhD only if it is useful to you, not to the university/academia!
[...]The interests of academics and universities on the one hand and PhD students on the other are not well aligned. The more bright students stay at universities, the better it is for academics. Postgraduate students bring in grants and beef up their supervisors’ publication records. Academics pick bright undergraduate students and groom them as potential graduate students. It isn’t in their interests to turn the smart kids away, at least at the beginning. One female student spoke of being told of glowing opportunities at the outset, but after seven years of hard slog she was fobbed off with a joke about finding a rich husband.
[...] Many of those who embark on a PhD are the smartest in their class and will have been the best at everything they have done. They will have amassed awards and prizes. As this year’s new crop of graduate students bounce into their research, few will be willing to accept that the system they are entering could be designed for the benefit of others, that even hard work and brilliance may well not be enough to succeed, and that they would be better off doing something else. They might use their research skills to look harder at the lot of the disposable academic. Someone should write a thesis about that.
Source: The disposable academic
Filed under Education
What is the focal length of a lens?
Focal length measures the light convergence strength of a lens. This discussion is valid assuming the lens is thin (that is, the lens thickness is small compared to the focal lens).
If a subject is far away from the lens (at infinity), then the subject is on focus at a distance from the lens called focal length (f):
If the subject is closer to the lens (at a distance S) then the lens focuses the subject at a distance D from the lens. D is the focal plane. Notice that D is different from f: f , the focal length of the lens, is equal to D only when the subject is very far away from the lens. When the subject get closer to the lens, then the distance from the focal plane to the lens increases:
The more the subject get closer to the lens, the further (and faster) the focal plane moves away from the lens. When finally the subject distance from the lens is equal to f, then the lens is unable to converge the light and the focal plane disappear. Every lens has this “problem”: there is a distance from the lens where it is not possible to put the subject on focus:
The relationship between S, D, and f is defined by the formula: 1/S + 1/D = 1/f. When S is noticeably bigger than f then D is very close to f. But when S is equal to f then D is undefined.
Filed under Photography
Dean Yeagle
Dean is a cartonist known, among other things, for his Playboy cartoons. His images looks very much like a Walt Disney cartoon, simply more sexy!

More images after the break… Continue reading
Filed under Stuff
Trust Facebook?
ZUCK: yea so if you ever need info about anyone at harvard
ZUCK: just ask
ZUCK: i have over 4000 emails, pictures, addresses, sns
FRIEND: what!? how’d you manage that one?
ZUCK: people just submitted it
ZUCK: i don’t know why
ZUCK: they “trust me”
ZUCK: dumb fucks
Read more here: http://www.businessinsider.com/embarrassing-and-damaging-zuckerberg-ims-confirmed-by-zuckerberg-the-new-yorker-2010-9
Filed under Stuff



