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RECENT POSTS IN THIS TOPIC

Stephane Durand: on 9/27/14 at 3:58am UTC, wrote Just voted !

Cristinel Stoica: on 9/26/14 at 5:17am UTC, wrote Dear Jonathan, Good to hear from you again! Thank you for the comments,...

Jonathan Dickau: on 9/26/14 at 3:21am UTC, wrote I enjoyed this Cristi.. I think the pacing of the narration was a little...

Tejinder Singh: on 9/13/14 at 19:18pm UTC, wrote Dear Cristi, I have very much enjoyed seeing both your videos and have...

Cristinel Stoica: on 9/11/14 at 20:25pm UTC, wrote Dear Mr. Roth, About your remark that "it could also consistently go to...

Cristinel Stoica: on 9/11/14 at 16:33pm UTC, wrote Dear Mr. Roth, Thank you for watching my videos. As I mentioned under the...

Alexander Roth: on 9/11/14 at 15:25pm UTC, wrote Dear Mr. Stoica, Yours is a very fine video on what is one of the truly...

Cristinel Stoica: on 9/11/14 at 5:40am UTC, wrote Hi Kevin, Thank you for the comments. Watching your video and liking so...


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FQXi FORUM
October 23, 2019

CATEGORY: Show Me the Physics! Video Contest (2014) [back]
TOPIC: The puzzle of quantum reality by Cristinel Stoica [refresh]
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Cristinel Stoica wrote on Aug. 5, 2014 @ 20:36 GMT
Video Image





Video URL

https://www.youtube.com/watch?v=8H-nuIbkzfw



Video Description

In the quantum world, the way things happen depend on what happens in other places and times. Things seem to depend on choices which will be made in the future, or which are made at other places, no matter how distant. This is an unsolved mystery, and the best we can do is to become more familiar to it. This video aims to make the weird quantum phenomena more familiar.

Video Creator Bio

Cristi Stoica is currently mathematical physicist, former computer programmer, former math teacher. His main research interests are general relativity, quantum mechanics, and the connections between them.

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Ian C Harris wrote on Aug. 7, 2014 @ 16:51 GMT
I thoroughly enjoyed the physics behind your video! It was very intriguing. My only critique would be for the way you presented things. I found it to be a little monotonous and repetitive. If there was a way to make things a little more entertaining it would greatly improve the impact of the video. I learned quite a bit by watching your video!

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Cristinel Stoica replied on Aug. 8, 2014 @ 01:50 GMT
Thank you for your comments, they are very useful! Good luck!

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Claude Coulombe replied on Aug. 24, 2014 @ 14:19 GMT
I agree with Ian C Harris.

Good science but not quite entertaining.

Could be more jazzy!

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Member Marc Séguin wrote on Sep. 5, 2014 @ 21:27 GMT
Cristi,

Thank you for a fascinating video! I really liked the way your presented the classic quantum interferometer experiment, especially when you split the apparatus in 4 puzzle pieces and discuss the Global Consistency Principle! The second part with the magnets was a little bit harder to follow, and sometimes I had trouble hearing what you were saying. For future video productions, you could try other microphones, or perhaps put in subtitles that would make your argument easier to follow, especially for people who are not already familiar with the specialized vocabulary of physics.

I hope your video does well in this contest!

Marc

P.S. If you have a chance to view, comment and vote on my trilogy of videos entitled "This Is Physics" --- where I try to convey the "fun of physics" by focusing on some of the greatest moments of its history --- it would be quite appreciated. Only one week left to vote!

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Cristinel Stoica replied on Sep. 6, 2014 @ 18:10 GMT
Marc,

Thank you for the comments and the critical observations. My videos can be watched with English subtitles on Youtube: you just need to enable the subtitles on Youtube, using the "subtitles/CC" icon on the bottom right side of the video. I look forward to watch your videos. Good luck in the contest!

Cristi

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Member Kevin H Knuth wrote on Sep. 11, 2014 @ 05:26 GMT
Hi Cristi

I really enjoyed this video. I especially liked how you built up the interferometer in pieces to demonstrate the paradox induced by the presence of the second beamsplitter. The animations, which were clean and crisp, served this purpose well. I then enjoyed how you took it apart again into the four puzzle pieces to demonstrate the global consistency principle. It provides a very clear picture of what needs to be understood.

The second part on magnetism was less clear. Shortening the video by focusing on the interferometry would make for a very strong presentation.

I hope that you do well in the competition!

Good luck!

Kevin

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Cristinel Stoica replied on Sep. 11, 2014 @ 05:40 GMT
Hi Kevin,

Thank you for the comments. Watching your video and liking so much both the animations and the script, I am very happy for the favorable comments. Also I am grateful for the suggestions concerning the second part. I wanted to make it actually longer, but I wanted to stay under 7 minutes, so perhaps it was not that clear as I intended.

I wish you good luck in the contest!

Cristi

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Alexander Roth wrote on Sep. 11, 2014 @ 15:25 GMT
Dear Mr. Stoica,

Yours is a very fine video on what is one of the truly fascinating and mysterious areas of physics. The graphics are well done. I did have a problem with the audio. I have no problem with the accent, but that combined with the speed with which you spoke caused me to miss some points you made. I realize you tried to impose a time constraint.

The interferometer showed the photon always exiting to the right when the second splitter was there. Perhaps I missed mention of it, but that depends on the two path lengths --- it could also consistently go to the bottom detector if the paths were a half wavelength different. But that’s minor and doesn’t really affect the point of the your presentation which is really most interesting.

Good luck for the competition.

Alexander Roth

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Cristinel Stoica replied on Sep. 11, 2014 @ 16:33 GMT
Dear Mr. Roth,

Thank you for watching my videos. As I mentioned under the other video, you can enable subtitles on youtube. I wish you good luck in the competition!

Best regards,

Cristi

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Cristinel Stoica replied on Sep. 11, 2014 @ 20:25 GMT
Dear Mr. Roth,

About your remark that "it could also consistently go to the bottom detector if the paths were a half wavelength different." That's true, and that's why I made the two paths equal. Maybe I should have mentioned this in the video, but actually I had to skip not only this, but also a lot of details, explanations and clarifications, because I wanted to be simple and brief.

Best regards,

Cristi

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Member Tejinder Pal Singh wrote on Sep. 13, 2014 @ 19:18 GMT
Dear Cristi,

I have very much enjoyed seeing both your videos and have rated them.

See you soon at DICE!

Regards,

Tejinder

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Jonathan J. Dickau wrote on Sep. 26, 2014 @ 03:21 GMT
I enjoyed this Cristi..

I think the pacing of the narration was a little better here, and it also sounded a bit more animated or enthusiastic. The graphics were excellent, as in the other video, but I found this one easier to follow. The segment with the Mach-Zehnder interferometer was especially well done, but I see how the other portion was needed to demonstrate your point. I hope you enjoyed yourself at DICE and do well in the contest.

All the Best,

Jonathan

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Cristinel Stoica replied on Sep. 26, 2014 @ 05:17 GMT
Dear Jonathan,

Good to hear from you again! Thank you for the comments, and for pointing out the goods and the bads, feedback is what helps us improve.

I wish you do well in the contest,

Cristi

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Stephane Durand wrote on Sep. 27, 2014 @ 03:58 GMT
Just voted !

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