Photo Contest - Photo Association (11/4-11/10)

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The Photo Association contest is back, inviting participants to post digital photos that have a clear association with the previous submission. Each entry must adhere to specific rules: photos should be resized to a maximum of 800 x 600 pixels, minimal editing is allowed, and each member can submit only one photo per contest. Photos must be original and taken by the member, with no reuse allowed in future contests. At the end of the submission period, a poll will determine the favorite photo among participants. The discussion features initial photo submissions, with one member referencing the theme of "reflection" and another introducing the concept of "refraction" with a scientific angle.
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Photo Association

We had great responses and a lot of fun the last time we ran this theme. So here it is again, back by popular demand.

The rules are the same. Each photo must have a clear association with the photo immediately before. So once a photo is posted, the next photo must have a clear association with the previous photo.

The first person to post a photo gets to set the tone.

Contest Rules:

1. Any digital photo or digitally-scanned photo relevant to the theme will be accepted within the contest period. In case there's a gray area, or you're not sure if the picture is suitable, check with me first.

2. Please resize your digital photo to no more than 800 x 600 or 600 x 800 pixels. You may also crop your picture if you wish. You are also allowed to adjust the brightness and contrast of your picture but these should not dramatically alter the look of the picture. But other than those, any form of picture editing or modification is not allowed. This is a photo contest, not a picture editing/special effect contest. You may add a watermark or your name/nickname to the photo for identification purposes.

3. Upload your photos to any of the photo servers such as imageshack or photobucket. Then post it the relevant contest thread and link your picture using the img command. PM me if you do not know how. Alternatively, you may simply upload your image file to PF, and then have the full image displayed in your post.

4. Only ONE picture per member per contest. Once a picture is posted, it cannot be changed other than a total withdrawl by that member from that week's photo contest. Exceptions will be made for modification to comply with the rules, such as resizing.

5. At the end of the contest period, I will open a poll and every PF member can vote for the picture they like best.

6. Note that in case we have a large number of entries, I will do the polling in more than one thread. If that's the case, you can vote in each of the polling threads. The photos will be assigned in the polling threads in the order they were submitted.

7. The photo of the subject must be something that you took directly, not via in intermediary medium, and not taken by someone else. Unless otherwise noted, a photo of another photo, painting, print, etc. does not qualify.

8. You can use a picture only once. Once it is used in a contest, it cannot be reused in another contest.

9. Please post only pictures meant for submission in this thread. Photos not meant for submission must not be posted in the contest thread. Posting of more than one photos by a member may result in an automatic disqualification from the week's contest.

Zz.
 
Physics news on Phys.org
my blue reflection
2bd8fa06_o.jpg

- it's the entrance of the Volga oil tanker company.
 

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I'll play off the "reflection" theme:
IMG_2181.JPG

Zz.
 

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I will go for refraction then.

marcin_refraction.jpg
 

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This may seem oblique, but the caustics above are singularities, much like these:

_DSC3309_zpsx2wnn78b.jpg


(google 'Michael Berry' and "square root of zero" for some interesting physics...)
 

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Final day to submit your photo for this contest.

Zz.
 
Similar to the 2024 thread, here I start the 2025 thread. As always it is getting increasingly difficult to predict, so I will make a list based on other article predictions. You can also leave your prediction here. Here are the predictions of 2024 that did not make it: Peter Shor, David Deutsch and all the rest of the quantum computing community (various sources) Pablo Jarrillo Herrero, Allan McDonald and Rafi Bistritzer for magic angle in twisted graphene (various sources) Christoph...
Thread 'My experience as a hostage'
I believe it was the summer of 2001 that I made a trip to Peru for my work. I was a private contractor doing automation engineering and programming for various companies, including Frito Lay. Frito had purchased a snack food plant near Lima, Peru, and sent me down to oversee the upgrades to the systems and the startup. Peru was still suffering the ills of a recent civil war and I knew it was dicey, but the money was too good to pass up. It was a long trip to Lima; about 14 hours of airtime...

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