What are u doing right now? (apart from being on WP)

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jmnixon95
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08 Aug 2011, 9:20 pm

SammichEater wrote:
Your download will finish at 12:51 PM EST,


AM, right?



SammichEater
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08 Aug 2011, 9:21 pm

jmnixon95 wrote:
SammichEater wrote:
Your download will finish at 12:51 PM EST,


AM, right?


Dang it. You see how this works? Simple mistakes kill me every time.

Actually, I made another mistake too. 12:51 AM EST is equivalent to 8:51 PM PST, not 9:51 PM.


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chrissyrun
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08 Aug 2011, 9:29 pm

SammichEater wrote:
Your upload will finish at 12:51 PM EST, or 9:51 PM PST, assuming everything remains constant and uninterrupted. I didn't use an equation or formula. I used dimensional analysis.


I went to google to find Dimensional Analysis, and it's that thing we used in physics to change the unit of measurement. From days to minutes and such....but i haven't taken a science class for 2 years, so I want to know how it works with computers and uploads.

Also, the uploader says I only have 160 minutes left, which is only 2 hours and 40 minutes....which means it should finish at 10:08 PM...not midnight.


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chrissyrun
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08 Aug 2011, 9:32 pm

Double posting apparently. :lol:

68%


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Trigas
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08 Aug 2011, 10:09 pm

chrissyrun wrote:
Double posting apparently. :lol:

68%


nice... How long is the vid itself?



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08 Aug 2011, 10:18 pm

Trigas wrote:
chrissyrun wrote:
Double posting apparently. :lol:

68%


nice... How long is the vid itself?


75%

It's about 20 minutes long.


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Trigas
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08 Aug 2011, 10:21 pm

chrissyrun wrote:

75%

It's about 20 minutes long.


Well then :D



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08 Aug 2011, 10:23 pm

chrissyrun wrote:
I went to google to find Dimensional Analysis, and it's that thing we used in physics to change the unit of measurement. From days to minutes and such....but i haven't taken a science class for 2 years, so I want to know how it works with computers and uploads.

Also, the uploader says I only have 160 minutes left, which is only 2 hours and 40 minutes....which means it should finish at 10:08 PM...not midnight.


10:08 PM in your time zone (I assume that's MST). It appears my calculation was 17 minutes faster.

So how did I calculate that? Easy. You said the file size was 1.17 gigabytes, which is 1198.08 megabytes (1GB = 1024MB). Because there's 8 bits in a byte, 1198.08 megabytes is 9584.64 megabits. Now, divide that by 100 to get 95.8464 megabits in one percent. Since you posted that it was at 51% at 9:35 PM, and 57% at 9:57 PM, your download rate is 6% every 24 minutes. Since 95.8464 megabits are in one percent, in 24 minutes you must have downloaded 575.0784 megabits. Now, divide that by 24 to get 23.9616 megabits per minute. That divided by 60 is 0.39936 megabits per second.

Now that you know the download rate, the amount of time can be calculated. If it was at 57% at 9:57 PM, you must have had 43% to go. 43% of 9584.64 megabits is 4121.3952 megabits. At a rate of 0.39936 megabits per second, that would take 10320 seconds, or exactly 172 minutes. 172 minutes after 9:57 PM is 12:49 AM. For some reason the numbers came out slightly different this time, but the same basic idea applies.

Alright, I see why I screwed up the answer this time. I accidentally put 9:57 (and thus copied the wrong number in the second half) instead of 9:59, which explains the two minute gap. Simple mistakes get me every time. If this were math class, I would have got that wrong, even though I know what I'm doing.

Now, to predict the video format and resolution based on the time and file size of the video. If the video is exactly 20 minutes long, an MPEG-2 video at 6.2mbps should take up about 920MB, and an AVID 35:1 NTSC would take up 1.35GB. That's the closest I could find. Am I right?


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chrissyrun
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08 Aug 2011, 10:58 pm

Trigas wrote:
chrissyrun wrote:

75%

It's about 20 minutes long.


Well then :D


Next time I'm just using a webcam...camera's take too long.


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Trigas
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08 Aug 2011, 11:01 pm

chrissyrun wrote:
Trigas wrote:
chrissyrun wrote:

75%

It's about 20 minutes long.


Well then :D


Next time I'm just using a webcam...camera's take too long.


Indeed, though I need to get one with better quality still. *puts that on to-do list*



chrissyrun
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08 Aug 2011, 11:14 pm

SammichEater wrote:
chrissyrun wrote:
I went to google to find Dimensional Analysis, and it's that thing we used in physics to change the unit of measurement. From days to minutes and such....but i haven't taken a science class for 2 years, so I want to know how it works with computers and uploads.

Also, the uploader says I only have 160 minutes left, which is only 2 hours and 40 minutes....which means it should finish at 10:08 PM...not midnight.


10:08 PM in your time zone (I assume that's MST). It appears my calculation was 17 minutes faster.

So how did I calculate that? Easy. You said the file size was 1.17 gigabytes, which is 1198.08 megabytes (1GB = 1024MB). Because there's 8 bits in a byte, 1198.08 megabytes is 9584.64 megabits. Now, divide that by 100 to get 95.8464 megabits in one percent. Since you posted that it was at 51% at 9:35 PM, and 57% at 9:57 PM, your download rate is 6% every 24 minutes. Since 95.8464 megabits are in one percent, in 24 minutes you must have downloaded 575.0784 megabits. Now, divide that by 24 to get 23.9616 megabits per minute. That divided by 60 is 0.39936 megabits per second.

Now that you know the download rate, the amount of time can be calculated. If it was at 57% at 9:57 PM, you must have had 43% to go. 43% of 9584.64 megabits is 4121.3952 megabits. At a rate of 0.39936 megabits per second, that would take 10320 seconds, or exactly 172 minutes. 172 minutes after 9:57 PM is 12:49 AM. For some reason the numbers came out slightly different this time, but the same basic idea applies.

Alright, I see why I screwed up the answer this time. I accidentally put 9:57 (and thus copied the wrong number in the second half) instead of 9:59, which explains the two minute gap. Simple mistakes get me every time. If this were math class, I would have got that wrong, even though I know what I'm doing.

Now, to predict the video format and resolution based on the time and file size of the video. If the video is exactly 20 minutes long, an MPEG-2 video at 6.2mbps should take up about 920MB. That's the closest I could find. Am I right?


That reminds me of physics way back when. I could follow your math (except, I had to start doing it on a separate piece of paper and ended up getting distracted plus my head hurts[because of a headband +no sleep]), it's just, I don't know too much about computers...so I didn't know 1 byte = 8 bits...anyways, it's really close to 20 minutes...I don't remember exactly, but I think it is either 19:57 or 19:59 I am coming back to this math tomorrow when my brain isn't already tired/hurting.


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CockneyRebel
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08 Aug 2011, 11:17 pm

Basking in the peace of mind that I have at the moment.


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09 Aug 2011, 4:33 pm

Just did 100 sit-ups....cooking some vegen stir-fry/brown rice.....and soon to be doing weights after I eat.


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Jonsi
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09 Aug 2011, 4:50 pm

Getting up to leave, good bye all you wonderful people!



chrissyrun
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09 Aug 2011, 5:04 pm

Jonsi wrote:
Getting up to leave, good bye all you wonderful people!


For good? Bye!


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blitzkrieg
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09 Aug 2011, 5:31 pm

Chrissy wrote:
Just did 100 sit-ups....cooking some vegen stir-fry/brown rice.....and soon to be doing weights after I eat


Weights? 8O

Jonsi wrote:
Getting up to leave, good bye all you wonderful people!


Bye.