Timeline for Did US flags on the moon turn white?
Current License: CC BY-SA 4.0
24 events
| when toggle format | what | by | license | comment | |
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| Dec 3, 2020 at 2:25 | comment | added | Alexander | @paul23 chill on the genocidal sentiments, my dude. | |
| Dec 3, 2020 at 0:49 | comment | added | paul23 | @Alexander-ReinstateMonica you do realize that sending a flag is a big criminal operation and an act against humanity? And that those responsible for setting it up should be executed at sight? Space and the moon is decided to be neutral country, for all humanity equal. As such political symbols have no point being there, and the US personel and their descendants should be destroyed! | |
| S May 8, 2018 at 17:37 | history | suggested | ivan_pozdeev | CC BY-SA 4.0 |
prooflink from https://skeptics.stackexchange.com/questions/41168/did-us-flags-on-the-moon-turn-white#comment176126_41169
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| May 7, 2018 at 18:52 | review | Suggested edits | |||
| S May 8, 2018 at 17:37 | |||||
| May 2, 2018 at 1:43 | comment | added | Edwin Buck | @Alexander Gabriel Lippmann, winner of the Nobel Prize in 1908 devised the first color photographs without pigment, by using very small silver crystal sizes and wavelength interference. One might have a lot of fun imagining if such a technique could be leveraged to create a more UV resistant non-pigment coloring agent. | |
| May 1, 2018 at 14:04 | comment | added | Hobbes | LRO pics of Apollo landing sites, original source: nasa.gov/mission_pages/LRO/multimedia/lroimages/… and nasa.gov/mission_pages/LRO/news/apollo-sites.html and the complete archive: nasa.gov/mission_pages/LRO/multimedia/lroimages/… | |
| Apr 30, 2018 at 15:20 | comment | added | WhatEvil | @aroth bbc.co.uk/news/science-environment-19050795 - LRO pics of Apollo 16 landing site. | |
| Apr 29, 2018 at 11:48 | comment | added | Lightness Races in Orbit | @Oddthinking: inb4 "are those astronauts bleached white and/or turned to ash by now?" | |
| S Apr 27, 2018 at 15:37 | history | suggested | RonJohn | CC BY-SA 3.0 |
"what shape they're in" can be misinterpreted as how they are shaped.
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| Apr 27, 2018 at 9:21 | comment | added | Peter - Reinstate Monica | @user3067860 You mean color by iridescence, as in butterfly wings? True: They are not caused by pigments but by nano structures refracting light and causing interference which can create waves at specific wavelengths. The color depends, iiuc, on the grid scale so that all colors of the spectrum are possible, I assume (there is some green at the bottom of webexhibits.org/causesofcolor/15A.html). The question is whether nano structures (of which material?) deteriorate over decades in harsh UV (and gamma etc. from cosmic rays), which I assume is a real possibility. | |
| Apr 27, 2018 at 6:09 | review | Suggested edits | |||
| S Apr 27, 2018 at 15:37 | |||||
| Apr 27, 2018 at 1:22 | comment | added | aroth | "The Lunar Reconnaissance Orbiter has been orbiting the moon since 2009 taking "high resolution" images. If you look closely at some of these images, it is possible to see the shadows cast by some of the flags. " - Link(s), please. | |
| Apr 26, 2018 at 17:14 | comment | added | ruakh | @Oddthinking: I bet there are billions of people who don't know that humans haven't landed on the Moon since 1972. (But I agree that it's not a big deal. This answer makes clear that we don't know exactly what the flags look like now, which we obviously would if the picture were real.) | |
| Apr 26, 2018 at 16:25 | comment | added | T.J. Crowder | @Oddthinking: You, you may be overestimating the reasoning powers of meme-consumers... :-) | |
| Apr 26, 2018 at 15:33 | comment | added | user3067860 | @Alexander In theory, "structural blue" doesn't fade (I think)... | |
| Apr 26, 2018 at 14:12 | comment | added | Oddthinking♦ | @ShadowWizard: Because no-one believes it wasn't photoshopped. The photoshop was obvious and part of the joke. It still has astronauts in the image, whereas the claim is is about now. | |
| Apr 26, 2018 at 12:20 | comment | added | Shadow Wizard | But the image as posted in the question is without any doubt photoshopped, why not mention this in the answer? | |
| Apr 26, 2018 at 11:21 | comment | added | thanby | @Alexander If cost and weight truly aren't factors, the flag could me made out of many kinds of gemstones. Quartz for example, comes in a variety of colors and is an incredibly durable crystal. Sapphire is another good candidate. Both are extremely sturdy and mostly transparent to the wavelengths of UV that damage cloth/dye. Plus you'd have one seriously baller "flag" (you never said it had to be cloth!) | |
| Apr 26, 2018 at 2:53 | vote | accept | Greg Mike | ||
| Apr 25, 2018 at 21:56 | comment | added | rackandboneman | I would assume a glass fibre cloth, with anorganic pigments in the glass fibres, would stand some chance.... or metal foil that had tempering colors applied to it by heating.... | |
| Apr 25, 2018 at 20:52 | comment | added | BobTheAverage | @Alexander Undoubtedly there is, but instead of spending money on that, "they literally sent out a secretary to the nearby Sears and bought an off-the-shelf flag and modified it." The flags did their jobs admirably. The only purpose of a more resilient flag would be to prevent snarky Facebook memes. | |
| Apr 25, 2018 at 20:48 | comment | added | JDługosz | @Alexander yes; work with the environment rather than against it. For example, many minor planets are red because of the effects of the space environment. So make the red pigment out of that. | |
| Apr 25, 2018 at 19:47 | comment | added | Alexander | So is there a material they could have been made from (ignoring weight, expense, etc.) that would have survived and kept its full color? | |
| Apr 25, 2018 at 16:17 | history | answered | BobTheAverage | CC BY-SA 3.0 |