Beta

Slashdot: News for Nerds

×

Welcome to the Slashdot Beta site -- learn more here. Use the link in the footer or click here to return to the Classic version of Slashdot.

Thank you!

Before you choose to head back to the Classic look of the site, we'd appreciate it if you share your thoughts on the Beta; your feedback is what drives our ongoing development.

Beta is different and we value you taking the time to try it out. Please take a look at the changes we've made in Beta and  learn more about it. Thanks for reading, and for making the site better!

Comments

top

Network Solutions Hit With DDoS

PiSkyHi Deserved (91 comments)

Probably all those cheeky sales strategies like auto-renewal at any price without confirmation. A free email box that turns into a paid one and can only be cancelled with a support ticket. Shit like that certainly annoys me.

1 year,11 days
top

BBC Clock Inaccurate - 100 Days To Fix?

PiSkyHi Re:Not-so-accurate source (487 comments)

I think you interpreted "the whole issue" differently than me. I know from years of experience that PC clocks are notoriously inaccurate - it's nothing to do with timezone, they are just very cheap timepieces.

I interpreted that in probably more than 95% of cases, people clocks were wrong and they were annoyed that the BBCs clock was the no improvement - Their machines are probably not using NTP, otherwise they would be fine.

This is the interpretation in the article as well.

You should be able to get the local user's timezone either from their environment, or if using PHP, there is a function call for it as described in the article.

Everyone knows IP lookup is a guess at best. Google DNS uses this plus latency checking to improve location estimates.

I think you maybe focussed on reinventing the wheel to much. It's really not that hard to have a clock that is more accurate than the local machine presented dynamically on a webpage using your local timezone. Off the top of my head, I was trying to think if JS could get NTP or such directly, but if using PHP, one could rely on the servers clock passed to the client to make an adjustment as described in the article - the server of course, uses NTP.

The BBC doesn't need to set up their own NTP server with their own clock, there are a heap of accurate time sources available freely. If they pass their own servers clock, there would be no extra load on external time sources.

about a year ago
top

BBC Clock Inaccurate - 100 Days To Fix?

PiSkyHi Re:Not-so-accurate source (487 comments)

"Um, WTF? Did you even read what you wrote?"

Snarky little Slashdotter.... STFU.

"It turns out it is actually difficult to get time zones right,"

Ok - I am assuming that to use the clients environment for Timezone is sufficient, you are assuming it isn't - that's fine, so you'd need to do a best guess based on IP lookup google DNS style from the server - combination of IP DB and latency checking.

I know most clients clocks are not precise, but if they have their timezone wrong, I don't why that's the BBCs fault.

about a year ago
top

BBC Clock Inaccurate - 100 Days To Fix?

PiSkyHi Re:Not-so-accurate source (487 comments)

" It needs to be taken every time situation in the globe"
Even after fixing your English, this is completely false for global GMT, local timezone.

You just joined the heard of idiots because you don't know what you're talking about... I have already stated that I don't need to take my own advice on this one and why.... so STFU typical Slashdotter.

about a year ago
top

BBC Clock Inaccurate - 100 Days To Fix?

PiSkyHi Re:Not-so-accurate source (487 comments)

I get tired of the "experts" here coming up with what they think is the obvious solution - different to everyone else's and mostly just made up BS.

People calling each other out on such utter nonsense.

Please Slashdot, if you don't know what the fuck you're talking about, STFU!

How fucking hard is it really to have accurate time displayed on a webpage ?

I haven't tried it myself, I don't claim to have the ultimate solution, but it does appear to be a no-brainer.

Firstly, I'd be looking for a stdtime server that can give me GMT in some kind of XML or JSON - this would make life easy. if not, then maybe see if NTP can be interpreted by JS.

Then I would establish how hard it is to read off the local timezone from the clients environment, then it seems as though you just combine the 2 - the correct global time and your correct local timezone - these are the requirements, nothing more.

As you can see, I'm not talking out of my arse, just pointing out that it would take a morning to investigate the feasibility of the above and fulfil these requirements - most likely the extra code would be a few days at the most.

I think that is the point - the BBC haven't even done any basic research into this.... they just mouth off some BS as if they were on Slashdot themselves bagging everyone else's solution.

about a year ago
top

Python Family Gets a Triplet Of Updates

PiSkyHi Re:Master Craftsman (196 comments)

Kind of like Miles Davis: "You gotta learn the rules before you can break them."

about a year ago
top

Python Family Gets a Triplet Of Updates

PiSkyHi Re:Yay! (196 comments)

1. A bad craftsmen blames his tools no matter the quality of them.
2. An average craftsmen working with bad tools becomes a bad craftsmen when he is afraid to admit the tools are bad.
3. A good craftsmen blames his tools when they are bad and himself when they are not - otherwise he does good work with good tools for that is why he is a good craftsmen.
From experience, I'd say most people who state no. 1. as paramount are actually number 2. The number 3. people don't usually talk about it too much and they usually think they are number 2. Personally, I think C++ can be replaced by Go and nothing can replace C.

about a year ago
top

South Korea Backtracks On China As Source of Cyberattack

PiSkyHi It's not what you think. (125 comments)

As much as techies would love to believe that some other techie made a monumental error, it is more likely that this is a by-product of the attack. Either politically, to shift the blame or just plain and simple messing with network to make things harder to trace.

about a year ago
top

Samsung Unveils the Galaxy S4

PiSkyHi Re:Eh, that's it? (619 comments)

The math is ok, but it fails to take into account that raw pixels are not we see at this level anyway - this class of pentile display produces the full resolution for luminence and a lower resolution for chroma - our eyes don't perceive the pixels, our brains process luminance and colour from different sensors and produce an image from that information anyway.

I don't know about you, but when a display is just blue, the precision is lost on my eyes - I can't see the same precision as I do with white at all - was the same for older LCDs and now on my galaxy S3.

about a year ago
top

Ask Slashdot: How Can I Explain To a Coworker That He Writes Bad Code?

PiSkyHi Re:You don't (683 comments)

Writing well documented, structured, KISS designed software and tools will ensure you remain expendable to management.

about a year and a half ago
top

Particle Physicists Confirm Arrow of Time Using B Meson Measurements

PiSkyHi Re:What this means (259 comments)

Since GR implies that the curvature of spacetime is affected directly by the matter/energy content and its distribution, it is inherently immune to simplification in any coordinate system - approximation for the purpose of showing off some math with it is what you are referring to - let's assume you are a spherical particle. GR is the principle, claiming the math we use around it is what defines it is false.

about a year and a half ago
top

Particle Physicists Confirm Arrow of Time Using B Meson Measurements

PiSkyHi Re:What this means (259 comments)

GR is approximated by coordinate systems.

about a year and a half ago
top

Particle Physicists Confirm Arrow of Time Using B Meson Measurements

PiSkyHi Re:What this means (259 comments)

Apologies... I meant GR.

about a year and a half ago
top

Particle Physicists Confirm Arrow of Time Using B Meson Measurements

PiSkyHi Re:What this means (259 comments)

See GM, Euclidean space is just an approximation - because at least we can use some of math then.

about a year and a half ago
top

Particle Physicists Confirm Arrow of Time Using B Meson Measurements

PiSkyHi Re:What this means (259 comments)

> Where philosophy intersects with physics, it is called "physics".

And yet, so many physicists have no idea how important self-consistency is in their physics.

> We've never managed to go without need for experiments.

Well, I never made such claim.

Also, Chicken or the egg, physics and philosophy, only a physicist ignoring self-consistency would bother trying to collapse this.

about a year and a half ago
top

Particle Physicists Confirm Arrow of Time Using B Meson Measurements

PiSkyHi Re:What this means (259 comments)

> We can observe the dimension of time with a clock.

Please, I think you are both too small and too slow to see it for what it really is when you look at a clock. You assume it is a dimension as we all do, since for our scale of things, this works pretty well.

> No, it's not. Something is static if it doesn't change with respect to time. Any parameter changes with respect to itself at rate 1.

Again, please I refer to time "itself" to try and catch you before you trip. When I say in this circumstance, time "itself" is static, I mean to say that if it can be reversed along with physical actions and you get back what you started with, then it is independent and unchanging, predetermined and all that that implies - essentially, static.

> This isn't at all a problem. After all, we can already observe in every unit of space, time moving forward or backwards as we see it.

No. I'll stop here. This is just wrong, so I won't go any further with it.

about a year and a half ago
top

Particle Physicists Confirm Arrow of Time Using B Meson Measurements

PiSkyHi Re:What this means (259 comments)

I think you raise a good point that physicists tend to follow only math or lab results, this leaves out the other important aspect of physics, philosophy. So many people think they sit in opposition, physicists should treat philosophy as some kind of irrational mysticism. Truth is, its very easy to miss logical fallacies in experiment proposals because you might think that since anything is possible, any experiment is a valid one. If you include philosophy into the design of a physics experiment, you get to analyse the self-consistency of the proposal before putting it to the test. You might say, well, what if the physics defies the philosophy, well they do go hand in hand and a very expensive experiment should be made to pass both tests, starting with the relatively inexpensive, deep self-consistent logical analysis. What if time could run backwards ? Relative to what ? to where you are now ? so time can run both ways in space and be observed in time ? whose time - the reverse or the forward time we observe in ? so the fundamental operations could go either way - that's still not time in a different direction, since if they did go both ways in the same universe, causality would be floored and relativity would fail, leading to an inconsistent reality. Conclusion without any need for experiments: If you believe reality is consistent, time does not travel in 2 directions in 1 universe.

about a year and a half ago
top

Particle Physicists Confirm Arrow of Time Using B Meson Measurements

PiSkyHi Re:What this means (259 comments)

I don't think the reversing the syllogisms holds in this example. It is not sufficient to say that because T is violation that T would not be in violation if the universe were flipped and all CPT were now opposites. Just managing to show that things do not reverse equally in this universe, does not mean that by inverting everything, you also invert false to true.

I think you have misunderstood the implications of this finding. Just like gravity waves and their observation (or lack of), I think it only takes a small philosophical thought experiment to realise that there are problems with the questions being asked here and so the results alone will only serve to confuse.

For a start, let's assume that time is a dimension - this is an assumption that most physicists hold dear, some do not.
In this circumstance, the arrow of time appears arbitrary since positions in a spatial dimension appear arbitrary - it could this far along and a sequence of actions moved it in this direction, reversing all the actions perfectly moves everything the other way.
Of course, even if this were definitely true, you would still be faced with the dual direction problem - i.e. it looks like if time is a dimension, then it runs the same way forward as backward - as long as actions are reversible. This is just another way to say that time itself is static, the chosen direction itself is arbitrary and one could say that in a inverted universe my reverse is your forward. What I'm really saying here is that if time is a dimension, then the real problem is having a universe where time runs both forwards and backwards in different regions of space and that it would be possible to observe one from the other. This violates relativity.

So, if time were not a dimension, merely a product of components of the universe being able to interact consistently with other components of the universe (i.e. for this to happen, you need causality and change), then it would appear to have a direction to observers too small or slow, but this would be an illusion because the observer can not exist outside of the realm being observed. It's like a physicist is doing a thought experiment without realising he doesn't actually exist outside of the realm he is imagining to be our universe.

Time is a process - Time has no direction at all because it is the process of change that allows observers to do anything at all, imagining it running another direction is actually happening in this universe. Time is the result of a universe struggling with a paradox of it being one solid indivisible thing, or a multitude of things that appear to interact. If it contains components, they require time to observe each other with consistency, being the result of the causality required to keep things consistent. If there were no relativity, the universe would have no discernible objects and its only consistency would be to remain a single, solid unchangeable, unobservable thing.

so CPT invariance implies that the universe is the same thing, just being viewed differently - you still can't run it forwards and backwards in different regions of space and this whole thing of it being viewed differently is just a thought in someone's very real head that also cannot run time differently - it cannot be "viewed" from outside at all. I nearly said you can't run time forwards and backwards in the same universe, at the same time! But of course, the absurdity of that just illustrates that some questions are just improperly formed and do not have meaningful answers because the questions themselves are self-inconsistent and meaningless.

about a year and a half ago
top

What To Do After You Fire a Bad Sysadmin Or Developer

PiSkyHi Re:Evil companies (245 comments)

> The company can be uber-evil when everyone in it is as nice as can be. This. In a kind of paradoxical way, many people know this to be true, but cannot proclaim it and some will argue against it for fear of losing their job. They all appear as nice as can be. It's endemic.

about a year and a half ago

Submissions

top

GPL2 Libraries - Is there a point ?

PiSkyHi PiSkyHi writes  |  more than 4 years ago

PiSkyHi (1049584) writes "I understand that if I build an application that links with a library that is licensed under GPL2, I must also make my application GPL2. I can see that value in this for an application, but for a library, what's to stop me separating my program into a GPL2 compliant client app that talks to the rest of my (choose my own license) application ?"
top

PiSkyHi PiSkyHi writes  |  more than 7 years ago

PiSkyHi writes "'The "free software" protester who barged into an award ceremony with Microsoft chairman Bill Gates at Beijing's prestigious Peking University has triggered a vigorous debate among China's Internet users on his motives and cause.'
  — Some of the quotes in this article are quite revealing about the lack of understanding by the general IT community in China about Open Source."

Link to Original Source

Journals

PiSkyHi has no journal entries.

Slashdot Account

Need an Account?

Forgot your password?

Don't worry, we never post anything without your permission.

Submission Text Formatting Tips

We support a small subset of HTML, namely these tags:

  • b
  • i
  • p
  • br
  • a
  • ol
  • ul
  • li
  • dl
  • dt
  • dd
  • em
  • strong
  • tt
  • blockquote
  • div
  • quote
  • ecode

"ecode" can be used for code snippets, for example:

<ecode>    while(1) { do_something(); } </ecode>
Create a Slashdot Account

Loading...