I have an icon:  Windows says that the size of the file is 575 byte, while size on disk is 4 096 byte which is about 7 times more. Can somebody explain why so?
Looking at the properties for a Windows file I get two attributes, “Size” and “Size on disk,”  and "Size on disk" is always larger.  What do these two metrics mean?
Does a MCMC fulfilling detailed balance yields a stationary distribution? I guess I understand the equation of the detailed balance condition, which states that for transition probability $q$ and stationary distribution $\pi$, a Markov Chain satisfies detailed balance if $$q(x|y)\pi(y)=q(y|x)\pi(x),$$  this makes more sense to me if I restate it as:   $$\frac{q(x|y)}{q(y|x)}= \frac{\pi(x)}{\pi(y)}. $$  Basically, the probability of transition from state $x$ to state $y$ should be proportional to the ratio of their probability densities. How to roll the viewport? How do I rotate the viewport around the local (to the view port) - Z axis?  Basically what you would  get if you were to hit R with the camera selected in camera view. If a warlock's invocation states that they can use a spell without a slot does that mean they can cast the spell as often as they want? On page 111 of the 5E hand book the invocations Misty Visions, Mask of Many Faces, Master of Myriad Forms, and Otherworldly Leap all they that you can cast them without expending a spell slot. Does this mean the spells essentially become cantrips and I can cast them as often as I want? I got a stomach flu or I got the stomach flu or I got stomach flu? Using Illustrator CS6 to create shape out of multiple paths I am very new to Illustrator, in fact I am only experimenting with it in an attempt to help my friend develop a logo for a new business venture. I managed to draw out the shell of the logo using the line tool and modifying the lines with the anchor tool to get the shape I wanted.  However, I would like to somehow take all of these paths and create one object, or symbol which I can then apply a drop shadow, fill and various other effects too. Currently when I try to do this I get unwanted effects...  I'd appreciate any help on the subject. Horizontal spacing issue in \listoftheorems using amsthm + thmtools Creating Indexes on DB with Hibernate @Index Annotation How to prove this limit composition theorem? I am trying to pass the email value from a data extension to HTML. I am using the CloudPagesURL() in my email in attempt to grab the subscriber's email.  Here is my code syntax that I am attempting to use:  Email Code:  &lt;p&gt;&lt;a title="MyPage" href="%%=RedirectTo(CloudPagesURL(505,'Email Address',@EmailAddress))=%%" alias="ThisAlias" conversion="false"&gt;Click to unsubscribe page 505&lt;/a&gt;&lt;/p&gt;   CloudPage AMPScript Code:  %%[  VAR @emailAddress  SET @emailAddress = RequestParameter("emailaddr")  ]%%   Cloudpage HTML Code:  &lt;td width='155' valign='bottom'&gt;&lt;input type='text' name='Name1' value='%%=v(@emailAddress)=%%' id='Name1' /&gt;&lt;/td&gt;   Any reason as to why this doesn't work? My syntax might just be wrong or I might be using the CloudPagesURL() function incorrectly. What is the default 'backup' user for? I am setting up multiple-machine backup plan and I was hoping to use a user called 'backup' on each machine as the backup destination.   My problem is, there is already a user called 'backup' on my machine.  What is it for, and can I hijack it for my own purposes?  root@frodo:~# useradd backup useradd: user 'backup' already exists How can gravity affect light? I understand that a black hole bends the fabric of space time to a point that no object can escape.   I understand that light travels in a straight line along spacetime unless distorted by gravity. If spacetime is being curved by gravity then light should follow that bend in spacetime.  In Newton's Law of Universal Gravitation, the mass of both objects must be entered, but photon has no mass, why should a massless photon  be affected by gravity in by Newton's equations?  What am I missing? Get Age of a person in MySQL Error message says I can't flag... but yes I can When trying to upvote a comment made on a locked post (ordinary lock, not historical lock which remove the vote arrows and flag altoghether) we are greeted with such error message:        Or in words:     This comment is not eligible for voting or flagging   Being the curious type, I went straight away and tried to flag, fully expecting the same message... just to see the flag dialog open up just fine:        I was able to flag as well.  Can the error message please be changed to just "This comment is not eligible for voting"? Or of course, if it's not the intended behavior really disable the option to flag?  The original post on which I experimented is now deleted, but  you can play with. Is there any subtle difference between:   We need to carry in some stuff so open the door and leave it open. We need to carry in some stuff so open the door and leave it opened.   I mean "leave it like that (in that state)". How can an int be cast to an enum in C#? Every planar graph has a vertex of degree at most 5. How do camera body motors compare to in-lens motors for focusing? What is the difference between using a motor on the camera body and the motor built into lenses?   Aside from how both compare in terms of speed, what differences would I notice if I use a body with a motor and motor-less lens, and a lens with motor on a body that lacked one?  A comparison chart outlining the various lens motor types would be a great help as high end USM motors for Sigma lenses are faster then their regular versions. Apply for a Korean visa in Japan I'm a Vietnamese citizen and currently living in Japan. Can I apply for a South Korea tourist visa at the Korean embassy in Japan, or must I do it at the Korean embassy back in Vietnam? What if the LHC doesn't see SUSY? A question in four parts.   What are the main problems which supersymmetry purports to solve?  What would constitute lack of evidence for SUSY at the proposed LHC energy scales (e.g. certain predicted superpartners are not in fact observed)?  Are there alternative theoretical approaches which would address the SUSY problem set and which would still be credible in such an LHC no-SUSY-scenario? Where would LHC-disconfirmation of SUSY leave String Theory?   I would like to think that these four points could be taken together as one question. Can black holes form in a finite amount of time? One thing I know about black holes is that an object gets closer to the event horizon, gravitation time dilation make it move more slower from an outside perspective, so that it looks like it take an infinite amount of time for the object to reach the event horizon. It seems like a similar process should slow the formation of the black hole itself: As the star collapses, its gravitational time dilation make itself collapse more slowly. This make me wonder, are what astronomers claim to be black holes really black holes, or are they stars that progressively make themselves more similar to one without actually reaching the stage of having an event horizon?  EDIT: Contemplating one answer, I realize the question is ambiguous. What does finite time mean in general relativity. Here is a less ambiguous question: Is there a connected solution of 3+1 dimensional general relativity with one space-like slice not have a singularity, and another space-like slice having one.