[HN Gopher] Cold war satellite images reveal unknown Roman forts
       ___________________________________________________________________
        
       Cold war satellite images reveal unknown Roman forts
        
       Author : BerislavLopac
       Score  : 233 points
       Date   : 2023-10-26 12:31 UTC (10 hours ago)
        
 (HTM) web link (www.theguardian.com)
 (TXT) w3m dump (www.theguardian.com)
        
       | kevmo wrote:
       | Would be interesting to read a more technical analysis about the
       | software/code used to analyze all these images.
        
       | my12parsecs wrote:
       | I thought the declassification of US government documents was 25
       | years. Or I guess there's an exemption when it comes to military
       | intelligence? I wonder where and when the data was collected.
        
         | consp wrote:
         | Maybe it's just analog to digital conversion. Some stuff only
         | gets used for research after some digitization project since
         | it's not really searchable on a more global scale otherwise.
         | Could be completely wrong here of course.
        
         | Arainach wrote:
         | What do you mean by "where and when the data was collected"? As
         | the article says, the photos are from the 60s and 70s in Iraq
         | and Syria.
         | 
         | The source of the photos was the CORONA and HEXAGON satellites:
         | https://www.cambridge.org/core/journals/antiquity/article/wa...
         | 
         | The journal article cites its sources which you can use to
         | understand more:
         | https://www.tandfonline.com/doi/full/10.1080/00934690.2020.1...
         | 
         | The data has been available for quite a while, but available is
         | different from usable:
         | 
         | > While challenges involved in spatially correcting these
         | unusual panoramic film images has long served as a stumbling
         | block to researchers, an online tool called "Sunspot" now
         | offers a straightforward process for efficient and accurate
         | orthorectification of CORONA, helping to unlock the potential
         | of this historical imagery for global-scale archaeological
         | prospection. With these new opportunities come significant new
         | challenges in how best to search through large imagery datasets
         | like that offered by CORONA.
        
           | my12parsecs wrote:
           | You're right I should've looked more closely, but I was just
           | wondering about what it said towards the end of the article
           | about U2 spy photographs and what's becoming declassified.
        
             | jjulius wrote:
             | > After 25 years, declassification review is automatic with
             | nine narrow exceptions that allow information to remain as
             | classified. At 50 years, there are two exceptions, and
             | classifications beyond 75 years require special
             | permission.[0]
             | 
             | The nine exemptions can be found at the Justice
             | Department's website[1].
             | 
             | [0] https://en.wikipedia.org/wiki/Declassification [1] http
             | s://www.justice.gov/archives/open/declassification/decla...
        
           | blincoln wrote:
           | The journal article is much more interesting than the
           | Guardian article, IMO. Thank you for sharing the link.
        
             | acheron wrote:
             | Why HN users insist on submitting Guardian articles is
             | beyond me.
        
         | pyrale wrote:
         | The amount of available documents has skyrocketed in recent
         | past, especially for present-day history, and they're not
         | always easily usable. For instance, if your interested in the
         | Stalin administration, there are millions of orders, notes,
         | studies and transmissions stored in boxes somewhere. If you
         | were a historian in that time period, studying new documents, a
         | lifetime would only let you see a very tiny fraction of
         | existing sources.
         | 
         | Remember these movies where a small-firm lawyer is hammered
         | with tons of document boxes in a discovery process against a
         | big corporation? Well, historians are like that, but they have
         | less money and they don't know how many boxes there are. Also
         | they have to look for the boxes themselves rather than them
         | being delivered at their office.
         | 
         | In older, well-studied fields there are few boxes, they are
         | already referenced, and historians have a chance to see
         | everything over their career. In more recent, less studied
         | fields, there are countless unopened boxes.
        
           | quacked wrote:
           | I'm not a big proponent of LLM proliferation, but I was
           | thinking that mass review of tons of scanned documents might
           | be exactly the sort of thing they're really useful for. Given
           | an AI that hasn't been ruthlessly tuned to be as politically
           | neutral as possible, you could have a huge database and query
           | it in plain English like "were there any documents that made
           | overt reference to extremely corrupt behavior?"
        
             | Fiahil wrote:
             | To answer a query, your LLM needs to "read" the documents
             | first. The context window will not be big enough for this,
             | so you have to fine tune the model.
             | 
             | Problem is, you need to cross-check with the reference
             | material in case it's subject to hallucinations.
        
               | quacked wrote:
               | Oh, I was thinking that the cross-checking is the point.
               | You'd use the LLM as a "hazily thinking search function"
               | to narrow your examination of old documents, not as a
               | replacement for reading the documents.
               | 
               | I don't know what to do about the context window, though.
        
               | eternauta3k wrote:
               | I don't understand, can't you feed it one page at a time
               | and ask it "is there relevant information here?"
        
             | pyrale wrote:
             | People with the knowhow to do this kind of stuff are mostly
             | busy trading eyeballs or stock, and college history
             | departments are not exactly rolling in it.
             | 
             | Still, there is an effort made to make these collections
             | more easily avaialble. For instance, in the case of soviet
             | archives, [1] describes the work done and the conditions to
             | access. That work is far from exhaustive though, and a
             | large part of the stuff still needs to be done the slow
             | way, or require special requests in order to be accessed.
             | 
             | [1]: https://www.ucl.ac.uk/ceelbas/state-archive-russian-
             | federati...
        
         | dboreham wrote:
         | > 25 years
         | 
         | If that was true we'd have all the Kennedy assassination docs.
        
           | aftbit wrote:
           | They're probably exempted under:
           | 
           | >25X7 - reveal information that would impair the current
           | ability of U.S. government officials to protect the
           | President, Vice President, and other protectees for whom
           | protection services, in the interest of national security,
           | are authorized;
        
             | BiteCode_dev wrote:
             | Which you have to trust them about, because nobody can
             | verify that.
             | 
             | Basically back to step one: they tell you what they want.
        
             | mcpackieh wrote:
             | Maybe it's this one:
             | 
             | > _(6) reveal information, including foreign government
             | information, that would cause serious harm to relations
             | between the United States and a foreign government, or to
             | ongoing diplomatic activities of the United States;_
        
             | ourmandave wrote:
             | Like that scene from the JFK movie where Donald
             | Sutherland's character is going through a long check list
             | of all the things the secret service would have done.
             | 
             | Like, snipers on roof tops, planning the route so there's
             | no slow downs, etc.
        
           | scarecrowbob wrote:
           | Not that you're incorrect but in addition to withholding
           | documentation, sometimes they just destroy it, too.
           | 
           | https://nsarchive2.gwu.edu/nsa/DOCUMENT/940228.htm
           | 
           | " In August 1974, the Joint Chiefs of Staff destroyed all the
           | minutes and transcripts of their meetings going back to 1947,
           | and in 1978 essentially stopped keeping any such records.
           | Only 30 pages of notes have survived, much to the dismay of
           | military historians and scholars of the Cold War."
           | 
           | So, like, we will never get the discussions around, say, them
           | using smallpox against North Korea.
        
             | jandrese wrote:
             | The outgoing Nixon administration had to cover their tracks
             | for some reason.
        
       | anonu wrote:
       | Makes me wonder how much information and insights can be gleaned
       | from data that's just out there in the public domain. Can
       | generative AI help with data-mining and extracting interesting
       | and new things like this?
        
       | anonu wrote:
       | The Eastern front of the Roman Empire is full of surprises. One
       | fact that always impresses me is that one of the largest
       | hippodromes in the Roman Empire is found in modern-day Tyr, in
       | the South of Lebanon. The entire region is dotted with Roman
       | presence.
        
         | Bayart wrote:
         | The area was heavily urbanised before Rome was around, it
         | stands to reason that it remained relevant throughout the Roman
         | Empire (to the point of _being_ the Roman Empire after the slow
         | collapse of the Western administration).
        
           | euroderf wrote:
           | Such that Constantinople was more or less the center of
           | "Western Civ" for, like, a thousand years.
        
             | maximinus_thrax wrote:
             | Do you mean Constantinople was the center of civilization
             | such as a thousand years? Or was it identical to a thousand
             | years?
        
               | Intralexical wrote:
               | Never fear; the Oxford Advanced Learner's Dictionary can
               | help you out:
               | 
               | > like, adverb
               | 
               | > 2. used in very informal speech to show that what you
               | are saying may not be exactly right but is nearly so
               | 
               | Pedantry is neither clever nor educational.
        
               | maximinus_thrax wrote:
               | > Pedantry is neither clever nor educational.
               | 
               | What about irony?
        
         | nologic01 wrote:
         | the barycenter of human civilization has lingered over this
         | broader area for millennia. It is sad that in modern times it
         | never managed to gain at least some basic stability, if not a
         | revival and renewed contributions to the human storybook.
         | 
         | maybe its the curse of the oil. maybe its something else.
        
           | downWidOutaFite wrote:
           | [deleted]
        
             | xkcd1963 wrote:
             | It was much more a response to islamic expandism than a
             | cursed dream.
        
             | mcpackieh wrote:
             | European messianic dreams is an interesting way to describe
             | three religions that all originated and were exported from
             | from this general region, _not_ in Europe.
        
             | nologic01 wrote:
             | the causes might be viciously debatable and challenged but
             | the lost opportunity (versus a counterfactual universe
             | where there is less strife and destruction and more
             | coherence and construction) is quite tangible. one can only
             | hope that the recent past is not the exact predictor of the
             | future.
        
             | mannyv wrote:
             | Funny, most people in the West seem unaware of the numerous
             | Islamic attacks and messianic dreams of Islam. The ottoman
             | empire was also a Muslim empire...again something people
             | seem to forget about.
             | 
             | And don't get me started on the Muslim tradition of
             | enslaving everyone.
        
               | lm28469 wrote:
               | There is some weird kind of selective amnesia in the
               | west, we at the same time downplay our achievements and
               | put the focus on our perceived errors. While everybody
               | else is doing the exact opposite, so not only we teach
               | our kids to hate themselves we give good reasons for
               | others to do so as well.
               | 
               | It's as if the only empires that existed were Europeean
               | and the only slaves that existed were from the atlantic
               | trade
               | 
               | Ironic given how basically every civilisation did similar
               | things, Europeans were just better at it for a small time
               | but before them Arabs had a good go at it too, not even
               | mentioning the Chinese empire. The whole world and its
               | history is a shit show, just because you're at the tip of
               | one of the remaining branch doesn't mean you have to hate
               | your country and everything it did.
               | 
               | https://en.wikipedia.org/wiki/Early_Muslim_conquests
               | 
               | https://en.wikipedia.org/wiki/Umayyad_Caliphate
               | 
               | https://en.wikipedia.org/wiki/Almohad_Caliphate
               | 
               | https://en.wikipedia.org/wiki/Slavery_in_Africa
               | 
               | https://en.wikipedia.org/wiki/Slavery_in_Asia#:~:text=Sla
               | ver....
        
               | throwbadubadu wrote:
               | > There is some weird kind of selective amnesia in the
               | west, we at the same time downplay our achievements and
               | put the focus on our perceived errors.
               | 
               | There are those and those, and each side says something
               | like this about the other, the real minority is
               | realistically seeing the whole picture.
               | 
               | Also self-reflection isn't a bad thing, we can only
               | change ourselves and then influence others (hopefully
               | without force :)).
        
               | lm28469 wrote:
               | > Also self-reflection isn't a bad thing
               | 
               | Of course, but you can't call yourself a victim 24/7
               | while at the same time not acknowledging other
               | countries/religions/whatever faults.
               | 
               | It's rarely black nor white, and the shade of grey varies
               | depending on which side and which period you're born into
        
               | bboygravity wrote:
               | Arabs had a good go at it? As in past tense?
               | 
               | Last I checked slavery is still very common in many arab
               | nations as we speak?
        
               | empath-nirvana wrote:
               | Do you mean the greek and roman tradition of enslaving
               | everyone, and the American and English tradition of
               | enslaving everyone?
        
               | labster wrote:
               | What about the pan-African and Mesoamerican traditions of
               | enslaving everyone? Slavery was pretty much everywhere in
               | the world. Then Christians invented the idea of not
               | enslaving fellow Christians, then Muslims did the same
               | (which really helped the spread of both religions!).
               | 
               | Mathematically speaking, you reading this are the
               | descendant of enslaved peoples. They could be so far back
               | that it doesn't affect your economic status, like being a
               | Mamluk in Egypt, or a Carthaginian in Rome, or a Hebrew
               | in Egypt. But all of humanity was touched by this non-
               | peculiar institution.
        
               | Karrot_Kream wrote:
               | The Arab slave trade was huge and racist in its own way
               | (where poorer, usually darker skinned peoples were
               | enslaved and traded by wealthier, lighter skinned
               | peoples.) Western European colonial ambitions definitely
               | wounded the area significantly but the Islamicate world
               | was still practicing slavery after Western Europe had
               | largely banned it and stopped practicing it. It's recent
               | enough in Islamicate history that traditionalist groups
               | lay claim to slavery as a custom even now in the region.
        
             | aksss wrote:
             | Then don't say it. Simplistic and one-sided commentary on
             | history are best left out of a conversation.
        
               | downWidOutaFite wrote:
               | Eh, maybe you're right. The thread is starting to
               | devolve. I'll delete it .
        
               | anonu wrote:
               | You only managed to delete your comment - not the thread.
               | Future readers are left with no context.
        
             | lm28469 wrote:
             | The region has been at war at least since we learned how to
             | write... well before modern religions even existed
        
           | jbandela1 wrote:
           | > It is sad that in modern times it never managed to gain at
           | least some basic stability,
           | 
           | It is not just about modern times:
           | 
           | It was fought over by:
           | 
           | * Akkadians
           | 
           | * Hittites
           | 
           | * Egyptians
           | 
           | * Assyrians
           | 
           | * Babylonians
           | 
           | * Achmenid Persians
           | 
           | * Greeks
           | 
           | * Macedonians
           | 
           | * Seleucids
           | 
           | * Ptolemies
           | 
           | * Romans
           | 
           | * Parthians
           | 
           | * Sassanian Persians
           | 
           | * Byzantines
           | 
           | * Arabs
           | 
           | * Seljuk Turks
           | 
           | * Crusaders
           | 
           | * Mongols
           | 
           | * Ottoman Turks
           | 
           | * Safavid Persians
           | 
           | * French
           | 
           | * British
           | 
           | * Americans
           | 
           | (And I am sure I am leaving out many others)
           | 
           | For a long time, this part of the word has been the
           | battleground between Empires. It stands at the crossroads of
           | Europe, Asia, and Africa.
           | 
           | The instability is not just a modern phenomenon
        
             | empath-nirvana wrote:
             | Well, you're looking at 4000 year time scale. There were
             | large periods of time throughout where there was stability
             | over wide parts of it over the scale of decades or even
             | centuries.
        
           | anonu wrote:
           | > maybe its the curse of the oil.
           | 
           | There is no oil in the Eastern Mediterranean. Only in the
           | past decade has offshore drilling started to explore natural
           | gas.
        
           | Karrot_Kream wrote:
           | In recent history it's largely due to the Sykes-Picot
           | agreement. The Ottoman Empire fell at a time when nationalism
           | was arising and empires were going out of favor. In that
           | power vacuum, inaccurate lines were drawn in the sand by
           | colonial powers with little stake in life in the region.
           | Since then every nation carved out of the area has been
           | fighting over anything and everything because historically
           | the area was ruled by large empires rather than the nation-
           | states that were arbitrarily drawn there now. The history of
           | the area is so old and intertwined that every country there
           | has a claim of something on the other side of their borders
           | within spitting distance. Western Europe had similar issues
           | when the Western Roman Empire collapsed.
        
         | dopidopHN wrote:
         | Tyr was a old and rich city when the Roman were still a random
         | Latin tribes in Italy.
         | 
         | Carthage was founded by Tyr. The Phoenician are the one who
         | bring the alphabet in Mediterranean as well.
         | 
         | During Roman time, Tyr has lost his power. But I guess it was
         | still a important place culturally ? Like ... Rome now?
        
       | WhereIsTheTruth wrote:
       | > In addition, many of the likely Roman forts we have documented
       | in this study have already been destroyed by recent urban or
       | agricultural development, and countless others are under extreme
       | threat
       | 
       | How many of them are now destroyed due to US bombing?
        
         | WhereIsTheTruth wrote:
         | I wanted to point out how this article chose to ignore that
         | fact
         | 
         | But people have very small and selective memory it seems, war
         | torn countries, bombing + destruction/looting by local
         | terrorist groups
         | 
         | https://www.wmf.org/blog/impact-war-syrias-archaeological-si...
         | 
         | https://www.smithsonianmag.com/history/race-save-syrias-arch...
         | 
         | https://www.ucf.edu/news/war-rages-archaeologist-uses-satell...
        
         | empath-nirvana wrote:
         | In general, ruins in the middle of the desert don't tend to be
         | bombing targets. The vast majority of them will have been
         | destroyed by construction or farms.
        
       | nologic01 wrote:
       | If you (like me) wondered why go back decades to what is
       | pressumably lower quality imagery than what is available today,
       | here is the spoiler:
       | 
       | > They (cold war era) "preserve a high-resolution, stereo
       | perspective on a landscape that has been severely impacted by
       | modern-day land-use change"
        
         | morkalork wrote:
         | How did they get the stereo perspective, did they use a delay
         | between photos from the same satellite so there was enough time
         | for it to travel?
        
           | sigmar wrote:
           | >The first CORONA satellites had a single camera, but a two-
           | camera system was quickly implemented.[40] The front camera
           | was tilted 15deg aft, and the rear camera tilted 15deg
           | forward, so that a stereoscopic image could be obtained
           | 
           | https://en.wikipedia.org/wiki/CORONA_(satellite)#Cameras
        
             | _whiteCaps_ wrote:
             | And then you can view them with something like this:
             | https://en.wikipedia.org/wiki/Stereoscope
        
           | ska wrote:
           | There are different ways to do it, that's one of them.
           | 
           | A lot of the techniques were first used with airplanes, then
           | later with satellites. Lots of overlap because planes allowed
           | for easier localization and better resolution, especially
           | earlier on in remote sensing.
        
         | lapetitejort wrote:
         | Not only that, but
         | 
         | > In addition, many of the likely Roman forts we have
         | documented in this study have already been destroyed by recent
         | urban or agricultural development, and countless others are
         | under extreme threat.
        
         | kristopolous wrote:
         | How does this happen? Do you just see a bunch of ruins on your
         | land and think "well if it was important people would know
         | about it! Let's toss all this stuff in dumpster!"?
         | 
         | I can't imagine how many things went down like that. Large
         | Dinosaur repositories and people trying to plant some
         | vegetables were like "geez another bunch of bones. Alright,
         | into the fire"
        
           | kortilla wrote:
           | Yes. Altruism does not scale. It is very likely they thought,
           | "oh, this is some old looking shit but doesn't look that
           | important. Better clean it up quickly before the
           | preservationists come in and bankrupt this project."
        
           | calvinmorrison wrote:
           | Certain groups of islamofascists intentionally destroyed
           | known artifacts, ruins and even excavated and preseved sites
           | like Palmyra during earlier stages of the Syrian Civil War.
           | 
           | Also in areas that are in war time conflicts, or in poverty,
           | preserving may not be a top priority.
           | 
           | For example Gaza is the site of many historic cities dating
           | thousands of years old.
        
           | newsclues wrote:
           | Lots of people are highly motivated by the need to eat and
           | don't have the luxury of caring about history.
        
           | Swizec wrote:
           | In most of Europe (and probably elsewhere), you can't throw a
           | rock without hitting some sort of historically significant
           | thing.
           | 
           | We used to smoke weed on the local Roman wall. It was also a
           | popular destination for rock climbers to practice. The wall
           | has been there for 2000 years. It's fine.
        
           | olddustytrail wrote:
           | It's a bunch of stones. How would anyone know whether it was
           | 200 years old or 2000? You can't ask archeologists in for
           | every old cowshed built by your great grandfather!
        
           | mapmeld wrote:
           | Somewhat; Tim Traveler recently visited a 5,000-year-old
           | dolmen in France, and it's preserved, but treated like any
           | other small roadside attraction
           | https://www.youtube.com/watch?v=1S6wP8ox1R4
        
             | seszett wrote:
             | I can't really watch the video but a dolmen in France _is_
             | just a small roadside attraction, there are so many and
             | they are usually on private property, you can 't build a
             | museum and visitors center around every single dolmen.
        
           | nologic01 wrote:
           | When living _within_ any era, it is really hard to appreciate
           | how much of the stuff we value (and what we don 't) is just a
           | cultural convention specific to that era (and with a high
           | degree of arbitrariness).
           | 
           | People historically would routinely recycle anything of value
           | and reusability. What has survived from previous times is
           | more or less by accident (too bulky, too hidden etc.)
           | 
           | The idea of trying to preserve historical artifacts seems to
           | be entirely modern, but even that concept has evolved alot.
           | In the 19th century people did not think twice about
           | mutilating and removing pieces to remote museums or
           | "restoring" sites purely speculatively.
        
             | eszed wrote:
             | Your point is well-taken, but there is:
             | 
             | https://en.m.wikipedia.org/wiki/Ennigaldi-Nanna%27s_museum
             | 
             | It's one of my favorite archeological finds ever.
             | 
             | I suspect that there have been people in every age who
             | valued, preserved, and studied material remains of the
             | past. At a broad social and cultural level, however, you
             | are correct.
        
           | codedokode wrote:
           | This still happens today. For example, city walls of Moscow
           | were started to be dismantled in 19th century and whatever
           | left was destroyed by the communists after revolution. To
           | widen the roads in the center of the city the communists
           | demolished 18th and 19th century historical buildings
           | (luckily some other buildings were just moved away using
           | rails).
           | 
           | Also new construction sometimes happens in the center and you
           | cannot build something new without destroying a part of
           | history first.
        
           | fsckboy wrote:
           | a great example is the Rosetta Stone, a 2000 year old tablet
           | that contained 3 translations of a proclamation by the King
           | (Ptolemy V). It was discovered in Egypt by Napoleon's army
           | and for the first time in the modern day allowed ancient
           | Egyptian writing to be deciphered and read.
           | 
           | my favorite part of the story is, when the Rosetta Stone was
           | discovered, it had been considered rubble and was being used
           | as one of the bricks in some more recent construction.
        
           | eichin wrote:
           | One of the big sources of new runestone discoveries in Sweden
           | is "load bearing part of someone's basement" (and that
           | similarly some amount of the Acropolis turns up as having
           | been used as construction material.)
        
           | lazide wrote:
           | Construction involving digging is nearly impossible in most
           | European cities because it's impossible to dig without
           | hitting ruins. Rural areas aren't that much better. And it
           | all has SOME historic value.
           | 
           | [https://www.reuters.com/article/us-italy-politics-
           | metro/rome...]
           | 
           | For the most part, now it's 'take pictures, grab anything
           | that looks particularly interesting, and bulldoze on'.
           | 
           | At some point, especially if you're a random not-super-
           | wealthy farmer in the middle of nowhere, you have to go 'fuck
           | it, whatever' or you're going to not get anything done.
        
           | Ensorceled wrote:
           | I remember going to a museum and seeing a 150 year old tool
           | (a cant hook) that was in worse shape than the identical
           | version my father had in his garage and was still using as a
           | tool.
           | 
           | Time scales are much larger of course, but at some point
           | these are just "old things" to the people involved.
        
         | fritzo wrote:
         | I find stereo pair aerial imagery hugely helpful in
         | understanding terrain. While Google Earth is great to get a
         | gross overview, our eyes are much better at inferring sub-meter
         | detail from pairs of stereo photos, e.g. from a single airplane
         | taken a few seconds apart.
         | 
         | What are some good sources of public aerial stereo imagery? The
         | only source I've found is NOAA https://www.noaa.gov/topic-
         | tags/aerial-imagery
        
       | znpy wrote:
       | The quality of those images (from 50-60 years ago) really makes
       | me wonder what level of quality/detail can satellite imagery
       | reach (particularly us government spy satellites).
        
         | mannyv wrote:
         | In the 90s it was said they could read a license plate. It's
         | probably better by now.
        
           | jtwaleson wrote:
           | From satellites? I find that hard to believe, I always
           | thought that the atmospheric distortion significantly limits
           | the resolution of the images.
        
             | selectodude wrote:
             | That picture that Donald Trump tweeted out of the failed
             | Iranian rocket launch seemed sharp enough to make out
             | license plates.
             | 
             | https://twitter.com/realDonaldTrump/status/1167493371973255
             | 1...
        
               | jtwaleson wrote:
               | That structure seems really large. But it's really sharp
               | and I'd say within an order of magnitude of reading
               | license plates. Doesn't seem like a stretch to think they
               | can go to higher resolutions.
        
               | justrealist wrote:
               | This seems like maybe 10cm resolution. Close but not
               | there.
        
             | mannyv wrote:
             | That's why it was classified. Belief is irrelevant.
             | 
             | You can lookup keyhole imagery from the old days. Keyhole
             | was the original codename for them.
        
               | jtwaleson wrote:
               | Do you have a link? I'm curious.
        
             | m4rtink wrote:
             | Astronomical telescopes use active mirrors for atmosphere
             | compensations - maybe a satellite could do the same to get
             | a clearer image, just pointing the other direction ?
        
             | acdha wrote:
             | It does, but it's the kind of problem you can throw
             | computation at, along with adaptive optics. If you remember
             | that photo Trump released, that was from a KH-11, which
             | launched in the 70s (Hubble reused some of the design to
             | save money) and they it generating data in the gigabit
             | range back then so I'd imagine they have a high enough
             | frame rate that you could get many frames to interpolate
             | even for a moving subject.
             | 
             | They pour a LOT of money into that kind of capability so
             | I'd be hesitant to say it's impossible 50 years later.
        
         | IshKebab wrote:
         | No need to wonder. Trump tweeted a photo.
         | 
         | https://www.npr.org/2022/11/18/1137474748/trump-tweeted-an-i...
        
       | araes wrote:
       | I had a difficult time placing these sites (even with the Tigris-
       | Euphrates) in a larger world context (like, "how large is this
       | area?", and "relative to all Roman area").
       | 
       | So, I made a graphic that may be mildly helpful. [1]
       | 
       | Based on a quick check, these best I could find was the fort at
       | Circesium (known as the "farthest fortress" (phrourion eskhaton)
       | of the Romans), which apparently existed by 256 AD. [2] However,
       | the Roman Empire was basically over by 256 AD, and was in the
       | process of splitting into West-East (Crisis of the Third
       | Century[3]) and had likely already formed the breakaway Palmyrene
       | Empire [4] ruled over by Zenobia.
       | 
       | All locations have therefore been placed on a map of the
       | Palmyrene Empire (circa 271 AD) relative to Palmyra, Jerusalem,
       | Petra, Cyprus, and similar well known locations. Map was made
       | using the last Figure image from [5], the Palmyrene Empire Map
       | from [6] and a Distort to 3-pt Edessa, Nisibis, and Zenobia.
       | 
       | [1] https://i.imgur.com/dMZiloA.png (map I made)
       | 
       | [2] https://en.wikipedia.org/wiki/Circesium
       | 
       | [3] https://en.wikipedia.org/wiki/Crisis_of_the_Third_Century
       | 
       | [4] https://en.wikipedia.org/wiki/Palmyrene_Empire
       | 
       | [5]
       | https://www.cambridge.org/core/journals/antiquity/article/wa...
       | 
       | [6]
       | https://upload.wikimedia.org/wikipedia/commons/f/f8/Empire_o...
        
         | epups wrote:
         | Thank you for these resources! The map in particular is very
         | illustrative, I was having a hard time forming a mental image
         | of the area in question without one.
        
         | mmanfrin wrote:
         | > However, the Roman Empire was basically over by 256 AD
         | 
         | Instability during the crisis of the third century was not the
         | end of the Empire in the slightest; especially considering that
         | the Palmyrene Empire lasted hardly more than a single decade
         | before it was reconquered by the Romans who held on to it for
         | centuries longer.
        
           | araes wrote:
           | The comment is in reference to the generally held height of
           | Ancient Rome being ~100 AD. Afterward, largely 2nd order
           | downward. This Wikipedia gif illustrates. [1]
           | 
           | The crisis article and late antiquity articles note:
           | 
           | > The crisis resulted in such profound changes in the
           | empire's institutions, society, economic life, and religion
           | that it is increasingly seen by most historians as defining
           | the transition between the historical periods of classical
           | antiquity and late antiquity.
           | 
           | > Diocletian (Emp: 284 AD), who began the custom of splitting
           | the Empire into Eastern and Western portions ruled by
           | multiple emperors simultaneously.
           | 
           | The Roman Empire was effectively broken, and mostly just
           | oscillated until the final West-East break. It was already
           | "customarily" split in two by 284 AD.
           | 
           | [1] https://en.wikipedia.org/wiki/Roman_Empire#/media/File:Ro
           | mem...
        
             | crop_rotation wrote:
             | This is just incorrect and the empire had multiple multi
             | dedade solo emperors post Diocletien, including Constantine
             | and Theodosius.
             | 
             | > The comment is in reference to the generally held height
             | of Ancient Rome being ~100 AD
             | 
             | The height of an empire has no bearing on it's existence.
             | Otherwise one could shorten each empire's existence to it's
             | golden decade.
        
             | mmanfrin wrote:
             | Of the many end dates people debate as the end of the
             | empire, 284CE is not one of them.
        
           | actuallynotsofa wrote:
           | I read somewhere that the Roman Empire has not ended. It just
           | morphed into the Catholic Church and has had various
           | emanations(Austro-Hungarian empire) since then. One of the
           | reason Christianity was chosen as the main religion was that
           | it emphasized "turning the cheek" and followers already
           | believed in one power, so it was thought that it would be
           | easier to rule the masses this way.
           | 
           | Gibon I think is where I got it from.
        
         | hammock wrote:
         | > [1] https://i.imgur.com/dMZiloA.png (map I made)
         | 
         | What are the red dots?
        
           | araes wrote:
           | The red dots are the locations of either:
           | 
           | [square] CORONA Survey forts
           | 
           | (circle) Intensive Survey forts
           | 
           | Both sets of data were taken by image filtering the lower
           | half of [1] for grey-black colors [(forts)], deleting all
           | remaining imagery, transposing the image onto [2] using
           | Photoshop, and then using Edit->Transform->[Scale,Distort] to
           | image fit to a 3-point fit of Edessa, Nisibis, and Zenobia.
           | 
           | [1] https://static.cambridge.org/binary/version/id/urn:cambri
           | dge...
           | 
           | [2] https://upload.wikimedia.org/wikipedia/commons/f/f8/Empir
           | e_o...
        
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