7/18 Cool Note From Anna on Page 3: Aerogel Schematic
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7/18 Cool Note From Anna on Page 3: Aerogel Schematic
As I was updating the Guess When the "We're Ready" E-mail Gets Sent thread, I thought I noticed that a post containing the aerogel schematic had gotten updated. I checked in the Updates section and, sure enough...
One more tile is now green and I believe 2 or 3 new blues ones have appeared!
http://stardustathome.ssl.berkeley.edu/ ... c.php?t=78
That makes 10 tiles that have been either scanned, processed or made into a movie.
The project mentions, "We are aiming to complete scanning and processing of 12 aerogel tiles before we launch."
One more tile is now green and I believe 2 or 3 new blues ones have appeared!
http://stardustathome.ssl.berkeley.edu/ ... c.php?t=78
That makes 10 tiles that have been either scanned, processed or made into a movie.
The project mentions, "We are aiming to complete scanning and processing of 12 aerogel tiles before we launch."
Last edited by buddhabuddha on Tue Jul 18, 2006 11:59 pm, edited 5 times in total.
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Aerogel updates...
A question for Anna.
I presume a tile isn't presented as green until all the focus movies for that tile are ready. This tells me that there are @15000 focus movies completed, Berkley is working on another 5000, and the target for VM start is @60000 movies completed.
In another post on this matter, it was stated that it takes Berkley one day to produce a focus movie, but this doesn't compute.
Now the question. Can you elaborate on how many focus movies Berkley produces in a day?
Best Regards,
Dash
I presume a tile isn't presented as green until all the focus movies for that tile are ready. This tells me that there are @15000 focus movies completed, Berkley is working on another 5000, and the target for VM start is @60000 movies completed.
In another post on this matter, it was stated that it takes Berkley one day to produce a focus movie, but this doesn't compute.
Now the question. Can you elaborate on how many focus movies Berkley produces in a day?
Best Regards,
Dash
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Get ready for some detail
When the project ends we will have scanned about 5000 focus movies per aerogel tile. Right now we're getting about 4000 movies per tile, because we're leaving out the edges. We have to go back and do the edges later because they need a different focal range.
It takes about 20 hours to automatically scan one tile of aerogel and stream 4000 40-frame movies to a hard drive. We do no processing during the scan. Instead, we process the movies off-line to keep up the speed and reproducibility.
The hard drive full of raw movies is shipped to Berkeley. Here we convert each one into a stack of about 40 individual images (the focus movie) formatted ready for our Virtual Microscope browser. The process is automated, and also takes about 20 hours to produce 4000 focus movies.
The final step is to upload the 4000 focus movies to Amazon S3, from where they are served up to your web-browser. At the same time, information for each focus movie is entered into our database at Berkeley. This combined step takes about 8 hours.
As you can see, there's quite a bit of lag time between scanning and having focus movies ready for searching. That's why we want a buffer of 12 tiles (12 x 4000 movies) completely ready before we launch.
Probably more than you wanted, but I hope that answers your question.
-Anna
When the project ends we will have scanned about 5000 focus movies per aerogel tile. Right now we're getting about 4000 movies per tile, because we're leaving out the edges. We have to go back and do the edges later because they need a different focal range.
It takes about 20 hours to automatically scan one tile of aerogel and stream 4000 40-frame movies to a hard drive. We do no processing during the scan. Instead, we process the movies off-line to keep up the speed and reproducibility.
The hard drive full of raw movies is shipped to Berkeley. Here we convert each one into a stack of about 40 individual images (the focus movie) formatted ready for our Virtual Microscope browser. The process is automated, and also takes about 20 hours to produce 4000 focus movies.
The final step is to upload the 4000 focus movies to Amazon S3, from where they are served up to your web-browser. At the same time, information for each focus movie is entered into our database at Berkeley. This combined step takes about 8 hours.
As you can see, there's quite a bit of lag time between scanning and having focus movies ready for searching. That's why we want a buffer of 12 tiles (12 x 4000 movies) completely ready before we launch.
Probably more than you wanted, but I hope that answers your question.
-Anna
Indeed more then asked for. Thanks for the info.
But, as allways, an answer to a question triggers the next question...
I noticed that tile I015 is white whereas memory serves it was yellow before. This indicates a need for rescanning which is sometimes necessary as explained elsewhere on the site.
Can you give an estimate about the percentage of tiles which will need rescanning?
(since most tasks seems to be automated, we will need to keep you busy... )
But, as allways, an answer to a question triggers the next question...
I noticed that tile I015 is white whereas memory serves it was yellow before. This indicates a need for rescanning which is sometimes necessary as explained elsewhere on the site.
Can you give an estimate about the percentage of tiles which will need rescanning?
(since most tasks seems to be automated, we will need to keep you busy... )
Just dusting...
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Can you explain why you need a buffer of more than 1 or 2 tiles? Would it really matter if the viewers finished searching all of the movies from the scanned tiles and had to wait a few days before the next one was put into the virtual microscope?
*This has nothing to do with the fact that I predicted June 17th as the start date in the other thread.
*This has nothing to do with the fact that I predicted June 17th as the start date in the other thread.
With all the effort gone into scanning these, it suggests to me the need to be very careful as I scan to be sure that I do their efforts justice! A lot of hard work went into getting things to this point and I wouldn't want to waste their efforts by rushing and missing things, or flagging things because I wasn't careful enough.
Does anyone else feel this way?
Does anyone else feel this way?
From dust we come
Looks like quantity rather than quality. Hope I'm wrongDustTrailFinder wrote: I am planning to find at least three stardust particles and naming each of them after my grandchildren. Pretty ambitious I guess, but without goals why even try to find them. Oh yes, I will definitely have fun doing this, but I'm serious about finding one for each grandchild and really think I can do it, even though I'm on a dial up connection. So in order of my finds there will be the Madison Starparticle, the Zachary Starparticle, and the Brendan Starparticle. If I only find one, then it will be the Madison-Zachary-Brendan Starparticle.
Well done is better than well said.
Benjamin Franklin
Benjamin Franklin
Hey! We're just having a little fun! Please believe that almost all of us who have posted on here have expressed a serious interest in this as a science. But we also want to have some fun. That's why we posted some silly threads about t-shirts, logo's and names. If anyone finds three, that would be quality, especially since we will be ranked according to our accuracy.spk72 wrote:Looks like quantity rather than quality. Hope I'm wrong
I hope that you enjoy this as much as we hope to and see this not only as a scientific journey, but one of citizenship of the world. Good luck on your hunting!
From dust we come
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I'm seeing 11 tiles scanned, processed or movied now.
http://stardustathome.ssl.berkeley.edu/ ... c.php?t=78
http://stardustathome.ssl.berkeley.edu/ ... c.php?t=78
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