cultural reviewer and dabbler in stylistic premonitions

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Joined 4 years ago
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Cake day: January 17th, 2022

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  • The 2021 paper OSRM-CCTV: Open-source CCTV-aware routing and navigation system for privacy, anonymity and safety says they published source code at https://github.com/Fuziih but I don’t see it there now (though there is a related project called cctv-exposure).

    The final published version of the paper seems to be paywalled; it’s probably on scihub but there is also a preprint of it here on arxiv.

    https://github.com/FNBIP/ghost-route (just 3 commits, from February this year) says it is inspired by the paper and “extended to a production-grade multi-mode threat routing system”. It’s a node app you run locally (there doesn’t appear to be a public instance currently) which would be nice if it could work offline but unfortunately “Offline mode with pre-downloaded OSM tiles” is still on the roadmap and it currently lists “A Mapbox GL JS token (free tier works)” as a requirement (which is probably why there isn’t a public instance - someone would need to pay mapbox if they wanted to run it for other people).

    I have not tried it; if anyone reading this has or does please post here about how it works!





  • A Rocket To Nowhere is an entertaining blog post which covers the design compromises you’re talking about:

    spoiler

    [735 of the 4.1k words of the above-linked blog post]

    By the time Shuttle development began, it was clear that the original vision of a Shuttle as part of a larger space transportation system was far too costly and ambitious to receive Congressional support. So NASA concentrated on building only the first component of its vision, a reusable manned spacecraft that could reach low earth orbit. Since NASA assumed it would be able to fly Shuttle missions with a turnaround time as low as two weeks, this left the vexing question of what to do with all that spare launch capacity. The tiny commercial launch market was in no shape to supply such a wealth of satellites, so NASA turned to the one agency that had an abundance of things requiring shooting into space - the Air Force - and asked it to abandon its unmanned rocket programs, instead committing all future satellite launches to the Shuttle.

    The Air Force was only too happy to agree, but at a crippling price. What the Air Force wanted to launch was spy satellites - lots of them, bulky telescopes with heavy mirrors, the bigger the better - and it wanted to launch them in an orbit over the Earth’s poles, so they could snoop over the maximum amount of Red territory. This meant NASA had to go back to the drawing board, since polar orbits would require a heavier orbiter than the Shuttle design had anticipated, which in turn meant using a bigger rocket at launch, and dissipating more heat during re-entry.

    Moreover, there was no way to launch a polar mission safely from Kennedy Space Center — it would mean overflying either heavily populated areas in the Carolinas or risking capture of a fuel tank by the wily Cubans. So the Air Force also demanded, and got, billions in funding to build a new Shuttle launch facility at Vandenberg Air Force base in California. And because some of the Air Force’s military missions involved capturing a Soviet satellite on the sly and landing after one orbit, the Air Force demanded that the Shuttle be capable of gliding over a thousand miles cross-range during re-entry, so that it could catch up with the rapidly eastbound Air Force base underneath it. This meant bigger wings, which in turn meant more weight, an even more powerful rocket, and again a more complicated heat shield.

    Most of the really wrong design decisions in the Shuttle system — the side-mounted orbiter, solid rocket boosters, lack of air-breathing engines, no escape system, fragile heat protection — were the direct fallout of this design phase, when tight budgets and onerous Air Force requirements forced engineers to improvise solutions to problems that had as much to do to do with the mechanics of Congressional funding as the mechanics of flight. In a pattern that would recur repeatedly in the years to come, NASA managers decided that they were better off making spending cuts on initial design even if they resulted in much higher operating costs over the lifetime of the program.

    To further cut costs, and keep the weight from growing prohibitive, the Shuttle became the first manned spacecraft to fly without any kind of crew escape system, relying on certain components (solid rockets, wing tiles, landing gear) to function with complete reliability. NASA also decided not to make the Shuttle capable of unmanned flight, so that the first test flight of the vehicle would have astronauts on board. This was a major departure for the traditionally conservative agency, which had relied on redundant systems wherever possible, and always tested unmanned prototypes of any new rocket. It showed how confident NASA had grown in its ability to correctly predict, simulate, and design for high reliability.

    The final Shuttle design, incorporating all of the budgetary and Air Force design constraints, was impressive but not particularly useful. Very soon after the start of the program, it became clear that Shuttle launches would not be routine events, that it would cost a great deal of money to repair each orbiter after its trip to space, and that estimates of launch cost and frequency had been wildly optimistic. At the same time, the Air Force proved unable to get the Vandenberg base ready for use, negating much of the reason for the extensive Shuttle redesign. After the Challenger explosion, the Vandenberg base was quietly mothballed. Not once did the Shuttle fly a mission to polar orbit.







  • Is this something that websites opt into and add to their own site?

    Yes.

    reCAPTCHA is google’s “anti-abuse” service which many websites use to prevent slightly increase the cost of operating automated crawlers (which somewhat ironically google operates one of the largest of itself, for their search engine).

    Before neural networks could solve CAPTCHAs reliably, spammers were solving them with human labor; solving services like anti-captcha.com (intentionally not a clickable link…) today use a mixture of automated and human solvers.

    In the future google is apparently building, solving services will need farms of able-to-run-a-recent-android-release mobile devices with some kind of trusted computing hardware, each one of which they’ll have to use sparingly enough to keep usage of its unique ID under some plausibly-human threshold.

    And even if you do have a phone and are willing to identify yourself with it, if it is too old to run a recent enough Android you also will sometimes be denied services for being unable to pass a robots’ “human” test.

    🤮











  • colonies

    If you think China colonized Xinjiang, well… yeah, they did. But that was 22 centuries ago, a millennium before the [people now known as] Uyghurs had even arrived there. The demographics and ruling empires unsurprisingly changed a few times in the ensuing millennia, but since the Qing dynasty committed the Dzungar genocide there (from 1755–1758, with help of several peoples including Han and Uyghur) it has mostly remained a part of China.

    The ancient history is interesting, but more recent events (eg Al-Qaeda-affiliated groups the US has been funding there) are more relevant to the present situation.

    I did watch the first three minutes. Everything he shows is true, everything he explains as interpretation is just full of shit.

    What specifically is he full of shit about? I recommend watching more than three minutes of it.




  • The head of France’s biggest film producer, Canal+, has said the group will no longer work with hundreds of cinema figures who signed a petition voicing concern over the growing influence of the rightwing billionaire owner Vincent Bolloré.

    […]

    Speaking in Cannes on Sunday, the Canal+ chief executive, Maxime Saada, called the petition “an injustice toward the Canal+ teams, who are committed to defending the independence of Canal+ and the full diversity of its choices”.

    He added: “I will no longer work with and I no longer want Canal to work with the people who signed that petition.”

    funny way to demonstrate his organization’s independence from its owner