Wikipedia:Reference desk/Archives/Science/2021 January 27

= January 27 =

What is the task in the picture?
Can anyone identify what is being done here? Icemaking? papermaking? It is probably a tourist photo taken in in Java. Thanks! HLHJ (talk) 01:10, 27 January 2021 (UTC)
 * Did you ask the uploader? ←Baseball Bugs What's up, Doc? carrots→ 01:27, 27 January 2021 (UTC)
 * Could be gutta-percha, or rubber, or some kind of latex production. Abductive  (reasoning) 02:25, 27 January 2021 (UTC)
 * The uploader is not around and sometimes even mislabelled the country, unfortunately. Elastomer production! That's interesting and seems plausible, Java does export it. HLHJ (talk) 04:52, 27 January 2021 (UTC)
 * She seems to be removing galvanized or aluminium partitions between areas of white, milky liquid. HLHJ (talk) 04:53, 27 January 2021 (UTC)
 * Looks like a coagulating trough, see Crepe rubber for similar photos and the process. Mike Turnbull (talk) 10:29, 27 January 2021 (UTC)
 * Thank you, Mike Turnbull and Abductive! That really does look like the photo. I will categorize accordingly. I am slightly alarmed that the latex workers in the photos on Commons seem not to wear gloves. I'd think that would lead to a very high rate of latex allergies (hmm, that article says about ten percent of them become allergic). HLHJ (talk) 00:32, 28 January 2021 (UTC)
 * If you’re clarifying titles and descriptions, the same creator also has an image called File:Eating_children_in_Nepal.jpg.—Amble (talk) 15:32, 30 January 2021 (UTC)
 * Frozen food? As HLHJ indicated, the uploader is not available, having last edited 6 1/2 years ago. Presumably there's a way to rename a picture, e.g. to "Children eating in Nepal". ←Baseball Bugs What's up, Doc? carrots→ 17:09, 30 January 2021 (UTC)
 * I don't seem to be able to directly move files on Wikimedia Commons, but I submitted a request. --Amble (talk) 20:43, 30 January 2021 (UTC)

Which is more massive, a quasar or a quark star?
I don't see either quasar or quark star on Orders of magnitude (mass). 97.125.232.133 (talk) 01:10, 27 January 2021 (UTC)
 * A quasar (as is mentioned in that article's first sentence) is an active galactic nucleus which includes a black hole that has a mass millions to billions of times that of a typical star (such as the Sun). A quark star may (rarely) be formed from the end-of-life collapse of a single star that, though having more mass than average, is still less massive than the larger stars which instead form stellar-mass black holes when they collapse. {The poster formerly known as 87.81.230.195} 90.200.40.9 (talk) 05:04, 27 January 2021 (UTC)

[Not sure how to relocate these references which have strayed from an earlier query above. {The poster formerly known as 87.81.230.195} 90.200.40.9 (talk) 05:06, 27 January 2021 (UTC)]
 * Fixed. The trick is to add   at the bottom of the earlier query.  And then for other people contributing to the thread to add their new content above that line... --142.112.149.107 (talk) 08:21, 27 January 2021 (UTC)
 * Or below, while adding another reflist-talk below their comments if they contain new s. Their numbering will then start afresh at [1], though.  --Lambiam 10:17, 27 January 2021 (UTC)
 * Apologies, I missed that. Thank you for fixing. HLHJ (talk) 01:10, 28 January 2021 (UTC)