Search Results

Search found 15266 results on 611 pages for 'young people'.

Page 283/611 | < Previous Page | 279 280 281 282 283 284 285 286 287 288 289 290  | Next Page >

• Pure sine wave inverter

  - by Nick

  Not exactly programming (sorry) but I think it's pretty close and can be of interest to other programmers. I'm trying to setup a battery power station so that I can work from anywhere. I go surfing a lot and my idea is to be able to work from wherever I can park my car (given there's coverage). So, I'm getting a deep cycle battery, a 240V charger (I'm in Australia), and an inverter. At the back of my laptop it says 19V and 4.62A. From the people I've spoken to that means it consumes about 90W at most. So my inverter needs to be able to output about 100W. Most of them seem to be 200W and up so this shouldn't be a problem. I want to be able run my laptop for 10 hours (plus the 2 hours I get from the laptop battery) straight. According to the people I've spoken to and from what I gather online I need a battery that has the amp hours for my "amp draw". I have no idea how to calculate this but I've been guesstimating. Most deep cycle batteries seem to be classified using amp hours (Ah)... 35Ah, 50Ah, 75Ah, 100Ah, and so on. However the amp hours on those batteries is for a 240V and I seem to be using 19V. According to an expert I spoke to you'd need a 100Ah battery to power a 5A appliance at 240V for 10 hours (you only get about 50% useful power). That to me is 5A * 240V = 100Ah battery. So, naive as I might be I take 240V and divide that by my 19V and reach the conclusion that I can get away with a battery that's about 12 times smaller than that 100Ah. The expert told me I needed a 50Ah battery so that's probably what I'll be getting, but it would be interesting to know what I theoretically would need to power my laptop for 10 hours. As for charging the battery the expert I spoke to said I needed a 3-5A charger to be able to charge that 50Ah battery from flat to full in about 10 hours (I will just leave it plugged in over night). Now to my question. The expert said it's not a matter of "if" more like a guaranteed "when" my computer will stuff up if I don't use a "pure sine wave inverter". From what I gather the power that comes out of that battery is not as clean as the power we get in the socket at home. Apparently it's "square" and the one in the socket is nice and smooth. I've already got an inverter, but it's not "pure". Do I really need to buy the $200-300 pure sine wave inverter or can I get away with something else? Perhaps the laptop adapter that sits in the middle of my laptop power cable already fixes that wave to be nice and smooth? Thanks!

  Read the article

• Pointers for monitoring drupal 6 site needed, difference in server aw stats and the core "statistics

  - by Saurabh

  The IP addresses logged in by the Drupal 6 core "Statistics" module are not being displayed by the AW statistics displayed by my hosting server (hostgator). I am not able to comprehend why and which statistics are more reliable ? Also I would request some light to be shed on the best practices to monitor a Drupal 6 website. Thanks for your help people.

  Read the article

• Is there a legitimate reason that Apple puts the new iPhone OSes under NDA?

  - by yabada

  I don't understand why Apple puts the new iPhone OSes under NDA. Is it just a ploy to get people to sign up for the developer program? It seems to only prevent small indie developers from getting information about it or discussing it. Am I missing something? Full disclosure: I am a full-fledged paying member of the iPhone developer program.

  Read the article

• need a regex for matching repeating lines of symbols (example: ------------- or *****************)

  - by Haroldo

  I want to be able to remove linebreaks etc that people make by using recurring characters, for example: **************************************************** ---------------------------------------------------- ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ etc i'd like to not have to specify which characters it will match, maybe all that are NOT \w characters? also note they will not always start/end on a new line.. is this possible?

  Read the article

• CSS not working correctly on IE 7

  - by vatismarty

  Hi people, I am working on a website curently. Here is the link for it. Good News : The site is fine on FireFox, Chrome and IE 8. Bad News: It is not fine on IE 7. Alignment problems, hyperlink colour problems, etc. What should i do to make things normal on IE7 too. Any amount of help would be appreciated. Thanks

  Read the article

• Integrating Magento with a CRM software

  - by mehdi

  Dear people, I am looking for the most suitable and easy to configure solution that would integrate Magento with a CRM. Which CRM is more suitable and compatible with Magento? Thanks in advance,

  Read the article

• What other sites / resources do you use to help you with programming

  - by Anthony

  Stack overflow has become the first place i come to whenever i have dev problem. I also like to browse when i'm killing time. Just curious to know what other general sites or resource people use regularly.

  Read the article

• How can I run ARM code from external memory?

  - by samoz

  I am using an LPC2132 ARM chip to develop a program. However, my program has grown larger than the space on the chip. How can I connect my chip to some sort of external memory chip to hold additional executable code? Is this possible? If not, what do people normally do when they run out of chip space?

  Read the article

• Easiest way or Best tools to convert word text to clean (X)HTML

  - by Salt Packets

  This might have been asked in another way. I am not doing it on the fly however. Once in a while we get pieces of content in word files that have em dashes, bold, italic text and block quotes. Is there a good tool to convert this into a clean html code. Otherwise what other approaches people take.

  Read the article

• Cross platform GUI Programming with D

  - by Adam Hawes

  I want to start programming with D. I have a simple application in mind that needs a GUI but I want to make sure it's portable to Linux/Windows/Mac equally well and with minimal (no) change for each platform. wxD is looking like the contender of choice because I know the wx toolkit already. I see fltk4d as a contender and a (unfinished) wrapper around Qt. Are there any other truly cross platform GUI toolkits for D that will go where I want with little effort and what would the the toolkit of choice for people here?

  Read the article

• extending jquery on the main element object

  - by Blankman

  I've seen some jquery code where people extend the main object like: $('someId').myCustomObject(); Is this possible or am I mistaken? (if yes, how?)

  Read the article

• Tweets and RSS Feed for article

  - by Zerotoinfinite

  Hi, I am developing a blog site in asp.net 3.5 with C#. I have written few blog post in my site. Now, I want to give two icon below my article 1: "retweet" [Twitter], so that people can tweet my article 2: Subscribe RSS Feed for this article. Please let me know how to achieve it in the best way. Thanks in advance.

  Read the article

• SEO - List of links

  - by Rafael Carvalho

  I'd like to know if listing a set of partner sites/blogs is useful for the pagerank growth. Does Google see it as an incorrect act? I read somewhere that if people exchange links, google seeks it and marks as a bad technique. If it doesn't matter, is the content of the linked site relevant?

  Read the article

• I've caught an exception!! Now what?

  - by Jonesy

  Hi folks, I've started using try catch blocks (bit late i know!) but now im not sure what to do with the exception once i've caught it. What do people usually do here? -- Jonesy Try connection.Open() Dim sqlCmd As New SqlCommand("do some SQL", connection) Dim sqlDa As New SqlDataAdapter(sqlCmd) sqlDa.Fill(dt) Catch ex As SQLException ' ahhhh what to do now!!!? Finally connection.Close() End Try

  Read the article

• What application you recommend to start peeking to learn Python style?

  - by voyager

  Do you know any application, the more interesting/useful the better, to introduce a new person to Python language and the Python code style, but not necessarily to OO programing, so as to learn the subtleties and idioms of the language and surrounding community? I'm thinking along the lines of people that has worked with JavaScript, Java or .NET, and already have a strong hold of OO concepts.

  Read the article

• What is sadscript? Can I use it in vb.net? Why hasn't anyone I have asked heard of it?

  - by Cyclone

  The title is my question. Basically, I have heard people speak of it before, I understand it to have something to do with vb6, and I know it lets the user code for the application, but I am unable to determine if it is a separate library or built into vb, and I cannot find documentation for it anywhere. Thanks for the help!

  Read the article

• What is the best way to unit test webforms apps ( ASP.NET )

  - by Brian G

  What is the best way to Unit test my webforms applications? Looks like people are loving Watin, and selenium.

  Read the article

• In R, how do you get the best fitting equation to a set of data?

  - by Matherion

  I'm not sure wether R can do this (I assume it can, but maybe that's just because I tend to assume that R can do anything :-)). What I need is to find the best fitting equation to describe a dataset. For example, if you have these points: df = data.frame(x = c(1, 5, 10, 25, 50, 100), y = c(100, 75, 50, 40, 30, 25)) How do you get the best fitting equation? I know that you can get the best fitting curve with: plot(loess(df$y ~ df$x)) But as I understood you can't extract the equation, see Loess Fit and Resulting Equation. When I try to build it myself (note, I'm not a mathematician, so this is probably not the ideal approach :-)), I end up with smth like: y.predicted = 12.71 + ( 95 / (( (1 + df$x) ^ .5 ) / 1.3)) Which kind of seems to approximate it - but I can't help to think that smth more elegant probably exists :-) I have the feeling that fitting a linear or polynomial model also wouldn't work, because the formula seems different from what those models generally use (i.e. this one seems to need divisions, powers, etc). For example, the approach in Fitting polynomial model to data in R gives pretty bad approximations. I remember from a long time ago that there exist languages (Matlab may be one of them?) that do this kind of stuff. Can R do this as well, or am I just at the wrong place? (Background info: basically, what we need to do is find an equation for determining numbers in the second column based on the numbers in the first column; but we decide the numbers ourselves. We have an idea of how we want the curve to look like, but we can adjust these numbers to an equation if we get a better fit. It's about the pricing for a product (a cheaper alternative to current expensive software for qualitative data analysis); the more 'project credits' you buy, the cheaper it should become. Rather than forcing people to buy a given number (i.e. 5 or 10 or 25), it would be nicer to have a formula so people can buy exactly what they need - but of course this requires a formula. We have an idea for some prices we think are ok, but now we need to translate this into an equation.

  Read the article

• When is it okay to reference WindowsBase.dll?

  - by Tyler

  I've heard/read about people not wanting to reference the assembly because of the Windows component (e.g. "I don't want to reference Windows for my Web App). I'd like to hear what a large community feels about this. For which project types (business, data access, etc.) is it considered acceptable to reference WindowsBase.dll.

  Read the article

• Why is it safe to use copy & paste in Flash but not in Javascript?

  - by Lenni

  I'm trying to use copy'n paste in one of my web apps and have read a few articles/SO questions about it. Most people say that using Flash is the only option since most browsers don't allow access to the system clipboard because of security concerns. I can understand this but I wonder why it is okay for Flash do this, but not for the browser. Or has it got nothing to do with security and it is simply to complicated to implement this for cross-platform browser vendors?

  Read the article

• Jira task hierarchies

  - by John

  Searching online, I see lots of people asking for features to have multiple levels of sub-tasks, and proper sub-task functionality (like FogBugz). But I don't know if it's planned in future versions, or if plugins exist to provide this functionality. Does anyone know?

  Read the article

• Unique DVD info?

  - by acidzombie24

  I was wondering, is there some type of disc ID i can use to search in my database to see if that disc is has been scanned or not? All disc were created by me typically burnt on windows. -edit- I could compare write time and volume label to see if the disc has been scanned but i notice if i put in certain commercial disc that fields are blank or wrong causing many false positives (i once had the time set to the future, i dont know if people want to archive the contents of files on a commercial disc in my app).

  Read the article

• appexchange, facebook, google app store platform architecture

  - by ktasy

  how does appexchange or facebook build their app store architecture? I work for a company that is Saas based and we would like to start building an app store ourselves. We would like to have third party developers develop apps on top of our Saas application similar to appexchange and facebook's applications. If people could led me in the right direction on architecting an app store on the web that would be great.

  Read the article

• Sanitize file_get_contents

  - by Luis

  I want to use file_get_contents to implement a proxy so I can do ajax cross domain requests. Querystring will be used to supply the URL to file_get_contents. Now the problem is people can muck around with the qurystring in order to read local files on the server. I dont wnat this. Can someone get me a function to sinitize the querystring in order only to accept urls and not local files: ie: ?url=http://google.com.au - OK ?url=./passwords.txt - Not OK

  Read the article

• Where did the code that made it so you have to "fan" facebook pages to see content come from?

  - by Kyle

  Hey there. I have noticed a general trend in pages on facebook with a tab that requires users to "fan" a page to see it. I know these people aren't bright, but was wondering where exactly did this code (not tactic - for the sake of not having this question deleted) originate? I would really love to know. Thanks.

  Read the article

< Previous Page | 279 280 281 282 283 284 285 286 287 288 289 290  | Next Page >