My daily readings 07/09/2011

  • tags: Language Education

  • tags: File Sharing

  • tags: Pivot PicPlz

    • To be fair, they backed Instagram when it was still known as Burbn — before it became what is now a massively popular mobile photo-sharing app.
    • But as Sarah noted at the time, Andreessen’s bet wasn’t so much against Instagram, as it was a bet on Mixed Media Lab founder Dalton Caldwell. Caldwell, who had previously founded imeem, was said to have a broad vision for a company beyond photo-sharing. PicPlz was just the first product to leverage what they were creating. And while it has achieved moderate success, it has not seen the success Instagram has in terms of users. And now Mixed Media Labs has moved on to their next product, we’ve learned.
    • But ultimately, they decided to simply spin off PicPlz as a separate company while maintaining some ownership.
    • The move away from PicPlz comes at an interesting time in the mobile photo sharing space. While Instagram continues to gain users rapidly, other players like Path and Color have been preparing other products as well. Path recently launched their first “joint” — hipster/Dr. Dre lingo for “side project” — With. Color Labs, meanwhile, is said to be preparing an entirely new app after Color failed to catch on in the way they had hoped.
  • tags: facebook spam

    • Two weeks ago a number of Facebook developers logged into the site to horrible news: their applications had suddenly been disabled without warning. The culprit was Facebook’s spam-fighting bot, which automatically tracks the amount of negative feedback an application receives from users and blocks apps that are faring especially poorly (since they’re probably spammy). But the bot was acting more aggressive than it should have been, and developers didn’t have a way to tell how frequently users were blocking their app updates in the first place.
    • And Facebook is also taking a more gentle approach to app banning. Previously when an app crossed the spamminess threshold it would simply be deleted. Now Facebook will only cut off the notification channel that’s producing the spam. And if an application is deemed to be spammy across multiple notification channels, Facebook is also introducing a new ‘disabled’ mode that will still give developers access to their applications, even though users won’t be able to use it.


      Perhaps the biggest news, though, comes at the bottom of the post:

    • Facebook already does this to some extent with its News Feed (high quality content is seen by more people). But it sounds like this will also be seen in other channels, like Chat and the notifications tab.

      .cbw{ padding: 1px; border: 1px solid #b6b6b6; margin: .6em 0 .6em 0 !important; clear: both;} .cbw a{ color: #3F87BB !important; border: 0 !important; text-decoration: none !important;} .cbw a:hover{ color: #165d91 !important; border: 0 !important; text-decoration: none !important;} .cbw_header{ font-size: .9em; font-weight: bold; position: relative;} .cbw_header_text{ background: #f4f4f4 !important; padding: 1em 1em 1em 1em !important;} .cbw_header_toggle{ display: block; position: absolute; top: 1em; right: 1em; _right: 3.5em; font-weight: bold; cursor: pointer;} .cbw_header_get{ display: block; position: absolute; top: 1em; right: 7em; _right: 9.5em; font-weight: bold; cursor: pointer;} .cbw_subheader{ padding: .7em .7em .5em .7em !important; border: 0 !important; margin: 0 !important; font-size: 1.2em !important; background: #f4f4f4 !important; font-weight: bold;} .cbw_subcontent{ font-size: 0.95em; line-height: 1.2em !important; margin: .15em 0 .15em 0 !important; padding: .7em !important; background: white !important; border-top: 2px solid #f4f4f4 !important; border-bottom: 2px solid #f9f9f9 !important; overflow: hidden; height: auto;} .cbw_subcontent p{ margin: .45em .15em .45em .15em !important; padding: 0 !important;} .cbw_subcontent_left{ float: right !important; margin: 0 0 .5em .5em !important;} .cbw img{ max-width: 150px !important; max-height: 150px !important; border: 0 !important; padding: 0 !important;} .cbw img:hover, .cbw_subcontent_left a:hover{ border: 0 !important;} .cbw_subcontent_right{ } .cbw_subcontent table{ width: auto !important;} .cbw_subcontent td{ padding: .15em !important; vertical-align: top !important;} .cbw_subcontent .td_left{ width: 40px !important; font-weight: bold !important;} .cbw_footer{ padding: .8em !important; font-size: .9em !important; text-align: right !important; background: #f9f9f9 !important;} .cbw_footer a{ font-weight: bold; } .cbw_header_text { display: none; }
    • Contrary to all the answers here, for what you’re trying to do regex is a perfectly valid solution. This is because you are NOT trying to match balanced tags– THAT would be impossible with regex! But you are only matching what’s in one tag, and that’s perfectly regular.


      Here’s the problem, though. You can’t do it with just one regex… you need to do one match to capture an <input> tag, then do further processing on that. Note that this will only work if none of the attribute values have a > character in them, so it’s not perfect, but it should suffice for sane inputs.


      Here’s some Perl (pseudo)code to show you what I mean:

    • Yes, you can. And you do not even need to leave the Earth to do it.


      You are always viewing things in the past, just as you are always hearing things in the past. If you see someone do something, who is 30 meters away, you are seeing what happened (30m)/(3×108m/s)=0.1μs in the past.


      If you had a mirror on the moon (about 238K miles away), you could see about 2.5 seconds into earth’s past. If that mirror was on Pluto, you could see about 13.4 hours into Earth’s past.


      If you are relying on hearing, you hear an event at 30 m away about 0.1 s after it occurs. That is why runners often watch the starting pistol at an event, because they can see a more recent picture of the past than they can hear.


      To more directly answer the intent of your question: Yes, if you could magically be transported 27 lightyears away, or had a mirror strategically placed 13.5 lightyears away, you could see yourself being born.


    • I’d have to say yes – at least theoretically. If there was an observer (not you) 27 light years away, he could see your birth. Awesome as it sounds, it isn’t practically feasible. For one thing, the observer would need a large enough telescope to observe you. If the telescope isn’t large enough, the resolution would be low, and the observer wouldn’t be able to make out things far away. To get an idea, the size (diameter of mirror for instance) of the telescope that’ll enable you to see an object of about 10m at that distance is about 108km while the diameter of earth is about 12800 km.


      But again, you yourself wouldn’t be able to make this observation, as the information regarding your birth would have gone at the speed of light, and you wouldn’t be able to intercept it.





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Posted from Diigo. The rest of my favorite links are here.

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