IRC log for #uphpu on 20130918

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01:16.27carmonyKingMichael: hey :)
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14:51.01infobotgives xuu a "free" copy of Windows and then charges double for "Upgrades"
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14:52.05eggyknapI get my windows upgrades for free from openbsd.org
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14:54.53eggyknapSide note: I once needed to install Windows 7 on a bunch of computers. For some reason, like availability of CDs or something, I could only do a couple at a time, so while waiting for the installation on the first set, just for kicks I started installing OpenBSD on some of the others. The Windows install was interactive for a few initial steps, and then spent a *long* time thinking...
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14:55.54eggyknapDuring that time I was able to download OpenBSD over the crappy DSL connection, make USB installation media, and get several machines running.
14:56.02eggyknapAll while waiting for the Windoze install to get done cogitating and ask me for my time zone and stuff.
14:56.32mindjujui believe it
14:57.03mindjujucourse though, you really have to know what windows 7 is doing to understand why it takes so long to install
14:57.25mindjujusee, if you're going to so completely bork a perfectly good box, it takes time
14:57.39mindjuju;)
14:58.01eggyknapI've got a box of .300 WSM that says different. It'll bork a perfectly good box awfully fast.
14:58.57mindjujugot me there
14:59.28eggyknap'course, given adequate therapy, a recovering Windows machine can be made quite serviceable. Recovery from .300 WSM is quite a bit more difficult.
15:02.03TuxToasterlol
15:05.55TuxToaster~rlart
15:05.55infobotoffers linagee_ some herring
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17:06.13mgearyinfobot: oooh burn!
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17:31.06TuxToaster~rlart
17:31.06infobotinstalls a bad bootloader on T4rku5 and turns T4rku5 into a brick
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17:49.12T4rku5uhh
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19:34.32mindjujuany math nerds can help with a quick homework problem?  i need a verification of my answer, not a cheat :)
19:35.00mindjujuso the question is in 2 parts, i'll post both since they kind of lean on each other
19:35.30mindjujuhow long does it take to transmit 1bit over a 1Gbps link?  I answer 1 nanosecond
19:36.14mindjujupart b : if the line speed of that data traveling is 2.3 x 10^8 (speed of light over copper), then how physically long is that
19:36.49mindjujuso, i say 1 need one nanosecond of speed of something that travels 2.3x10^8 so, that is 23 meters
19:37.00mindjujudas goot, right?
19:38.59mindjujudoesn't seem right though, seem too long
19:43.22skinner1mindjuju: I have a question about the first question.
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19:43.34skinner1"how long does it take to transmit 1bit over a 1Gbps link?"
19:43.46skinner1does it say if that link is 2 cm or 100m?
19:43.53skinner1cause that'd change the answer
19:44.04skinner1right?
19:44.36mindjujuin this case, is the amount of time to put on the wire
19:44.36mindjujunot transmission
19:50.05mindjujuso another way of looking at the part b that i need is
19:50.34mindjujuhow far do you travel at 1 nanosecond (1,000,000,000) if your rate is 230,000,000 m/s
19:50.58mindjujui should prolly remove some of these 0s as i think i'm getting confused from them
19:51.33mindjujuoh, i think the answer is .23 meters
19:51.39mindjujuoops
19:52.22skinner1so in 1 nano second, the bit of data only travels .23 meters?
19:52.37mindjujuactually, that's how long the bit of data is
19:52.50skinner1oh
19:52.52skinner1I gotcha
19:53.09skinner1ya
19:53.13skinner1my math says 0.23
19:53.25mindjujusee, all the 0s were getting me confused
19:53.34mindjuju:)
19:54.15skinner1It's cool though. Makes perfect sense to me.
19:55.17mindjujui always thought of data as blips, like tron intro
19:55.22mindjujuguess no
19:55.29skinner1ya
20:01.37mindjuju:)
20:12.10unumya, I didn't think a bit would be that long
20:30.12fungusmindjuju, the first part of that question is misleading.
20:30.40fungusdistance is critical to determining latency which is what the question is asking.
20:31.40fungusTime to first bit (latency), is critical in understanding network throughput.
20:36.23fungusOh, it's one of those hypothetical physics questions that assume zero latency.  LOL
20:37.16fungusLike the basic physics questions that assume zero air resistance.  
20:37.28mindjujuyup, exactly fungus
20:52.04ninnypantstemplate monster may beat godaddy at upselling http://d.pr/i/FLxd
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21:36.41mindjujuheya fungus, got a minute longer
21:36.45mindjujuit's a bonus question
21:37.06mindjujuso, let's say we've got a lunar base and we've setup a 1Gbps link
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21:37.57mindjujunow, i've already computed the round trip for 1 bit from hosuton to moon as 1.283 (one way) x 2 = 2.566
21:38.03mindjujuseconds (sorry)
21:38.22mindjujuso, if i want to download an image from the moon, and the image is 25MB
21:38.55mindjujuthen i convert that to bits (200,000) and i get that it takes .0002 seconds for data transfer
21:39.07mindjujuplus the request, so 2.5662 seconds for data transfer
21:39.19fungusIs this a theoretical question ignoring actual network characteristics?
21:39.27mindjujuyes, theoretical
21:39.44fungus25MB is a lot more than 200,000 bits
21:40.09fungus25MB = 25*1024*1024 bytes
21:40.14mindjujuoh yipes
21:40.19mindjujuyup
21:40.21fungusThen multiply by 8 to get bits
21:40.39mindjujuthx for the catch
21:46.23mindjujuso after redoing my math fungus, i'm seeing 2.7757152 (round trip = 2.566) + .2097152 (data transfer)
21:47.05mindjuju25MB to bits was 2.097 x 10^8
21:52.57fungustechnically, 2.1e8
21:53.08fungusSignificant figures...
21:53.48fungusunless 25MB is exact.  in which case its 209715200
21:53.50fungus;)
21:55.48mindjuju~fungus++
21:56.00mindjujuthat one is worth an extra 5points :)
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22:03.22mindjujufor fungus and his physics PTSD - https://www.youtube.com/watch?v=2rjbtsX7twc#t=13
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22:04.51ninnypantsmindjuju: interesting
22:04.57mindjuju:)
22:05.01mindjujuloving it
22:05.14mindjujuSunSparc might like it too
22:05.16mindjujuand TuxToaster
22:05.36TuxToaster_?
22:05.52mindjujuyoutube bohemian gravity
22:05.54ninnypantsTuxToaster_: https://www.youtube.com/watch?v=2rjbtsX7twc#t=13
22:06.06TuxToaster_lol
22:06.58fungusmindjuju, lol
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22:41.48ninnypantsmgeary: curious how did you end up solving that problem with having two locations per record?
22:42.27mgearyninnypants: haven't yet, but in gathering more requirements, it seems pretty clear we're going to have to abandon the OTS plugin and do some work with custom posts
22:43.18ninnypantsso a custom plugin then?
22:43.25ninnypantswell in theory
22:43.39mgearyyeah
22:43.55mgearyneed to have 3 related objects
22:46.11ninnypantsmgeary: parent object and location objects?
22:46.40mgearyPractice, Office and Physician objects, with FKs and M2M keys between them
22:46.49mgearyi wish the client had let us go with Django
22:47.25ninnypantsmgeary: https://github.com/scribu/wp-posts-to-posts/ might be useful
22:47.36mgearyheap. already saw that
22:47.40mgeary*yeap
22:47.46mgearyhaven't played with it yet
22:47.49mgearystill scoping
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