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Concerns have grown lately over reports about Syrian ambitions inside the country, coinciding with comments by US envoy Tom Barrack that Damascus sees Lebanon as โits beach resortโ
@pluralistic I know you don't know me and I am late to this party.... But I am at the halfway point of Chokepoint Capitalism and I am pissed off. I am so ready to read about the remedies proposed! I already have The Internet Con sitting in my stack to read next!
I posted a video about the demise of GM (the American car manufacturer) and the Nice Crew members thought it was about the demise of the Good Morning post.
Die EU-Antisemitismus-Koordinatorin lobbyierte laut geleaktem Bericht mit Lรผgen gegen Israel-Sanktionen. Kriegsverbrechen in Gaza seien "Gerรผchte รผber Juden", Spendenaktionen fรผr Gaza "ambienter Antisemitismus". EU-Botschafter widersprachen ihr deutlich: euobserver.com/eu-and-the-worlโฆ
The high-level EU official was lobbying against Israel sanctions using bogus claims on antisemitism, according to a "sensitive" cable from Tel Aviv leaked to EUobserver. ย
Just about to push back from the gate and the capt. comes on and says DFW has a ground stop. Weโre stuck here on the plane, at the gate, for at least the next 45 mins.
The Russian armed forces are expanding the buffer zone around the city of Volchansk in the Kharkov Region to prevent the Ukrainian military from strikes on Russia's Belgorod Region, Vitaly Ganchev, the head of the Russian administration in the Kharkoโฆ
Its easy to be exasperated with the people who appear to have only just figured out that killing 17,000 children is not cool and not self-defence. I have expressed some of that exasperation.
But here is Prof Alison Phipps @alisonphipps with a timely reminder that we need these converts. It's how we win.
Eleanor Duckworth: The more intensely interested a teacher is in a studentโs thinking, the more interested the student becomes in his or her own thinking. Corollary: The more a teacher just wants to see right answers, the less interested students become in their (or any) thinking.
Noted progressive educator Eleanor Duckworth worked with eminent Swiss psychologist Jean Piaget early in her career. "I learned that you can't change what ch...
I'm interested in the idea of building rigid high strength frames, for example for a lathe or milling machine frame, by burning out shapes in plate steel on a CNC plasma cutter, then assembling those plates with 3d printed support jigs holding them together and bolting through them with long bolts. Then pour the interior with concrete and after the concrete sets up, tension the bolts to prestress the concrete...
It's a bit limited in shape, you can't really include the type of features you see in cast iron, but machine bases typically don't need them that much.
When you're attaching a component to the base which needs precise orientation, you attach it to a jig which holds it true, then you bring the bed up to it and you epoxy the mating surfaces so the epoxy acts as a shim. After the epoxy hardens you can tension the hold-down bolts.
I realize that there's a general purpose way to make a high precision surface on something:
1. Lay a piece of surface ground steel, maybe 3-5mm thick, down on a surface plate. This steel must have a smooth finish but it does NOT need to be precise in any way.
2. Tape around the perimeter of the steel with vacuum tape and attach a vacuum hose on one corner.
3. Start the vacuum pump, sucking out all of the air between the steel and the surface plate. At this point, the vacuum will flex the steel, making it conform to the surface plate.
4. Take any old rigid piece of steel, stone, or concrete, paint it with epoxy, and stick it to the exposed surface of the steel.
5. After the epoxy hardens, release the vacuum and cut the tape free.
At this point, you have a high precision surface that has been twinned to the surface plate. The epoxy has hardened in the form of a "perfect shim" between the rigid body of the part, and the strip or plate of steel.
Problem with the above is you don't know how uneven the part is that you're sticking to, too uneven and there's not enough epoxy to fill the gap and you get a void.
A related concern is if too much epoxy is painted in places to fill up the voids, the thick areas will be subject to more shrinkage than the thin areas. Epoxy glues shrink by 0.1 - 3% depending on the type.
Two thoughts come to mind:
1. This process can be done using tinfoil, and then you can hit it with a wire brush to scrape out all of the voids since unbacked tinfoil will tear out instantly. Then the process can be repeated again with a little bit of extra epoxy painted in the void areas. When the entire surface comes up with no voids, then you do the final mating with sheet metal.
2. A related idea is to pour concrete down against the sheet metal on the surface plate. This will have more uniform shrinkage so voids should be less of an issue.
In the flooring business, they use a very liquid cement that is self-leveling, they dam it up and then pour it in, and then it will naturally level to perfectly flat and even.
That could be replicated into something else by just using a very watery epoxy. Something with a very low surface tension.
That'll work for making something like a table, but when we're talking about precision, things get "weird"...
The thickness of a human hair is about 2 thousandths of an inch. Paper is 4 thousandths, a laboratory grade surface plate is guaranteed flat and true to 0.045 thousandths.
When you get to these precision levels, you can put a 1/2 inch piece of steel under a measuring instrument and watch it flex as you push it lightly with your finger. You can hold a part in your hand and see it expand from your body heat in real time. Pouring even the thinnest epoxy and letting it cure in air might get you down to 1 thousandth, but you can get that by purchasing a piece of bar stock and making a simple surface grinder.
Surface plates are made on very high precision surface grinders, those grinders are themselves made using master surface plates. The masters are made in groups of 3, they coat them with a die called Prussian Blue, this die creates an extremely thin and uniform coating of about 0.01 thousandths. They lay one plate down on top of the other and this transfers blue marks from one to the other, then they scrape it using a tool which can take off around 0.001 thousandth per pass. They use 3 because when 1 and 2 match, and 2 and 3 match, and 1 and 3 match, then they know the surfaces are actually flat...
So I would say if you want to build precision machines, the easiest thing to do is buy your surface plate and then make everything else by cloning it.
Off topic: A surface grinder is actually quite easy to make, you clone a surface plate twice, once for the bed and once for the carriage. The carriage slides on a film of oil over the bed and you just use rudimentary chains, tracks and screws to control the right/left and forward/back because these are not precise. Also the angle of the head is not precise, everything can be eyeballed.
A surface grinder is the most rudimentary machine, it requires only 1 flat surface.
A lathe requires 4 flat surfaces: 1. Vertical ways (up-down truing) 2. Horizontal ways (back-forth truing) 3. Vertical cross-slide - parallel to horizontal ways 4. Horizontal cross-slide - square to vertical ways Then the headstock needs to be parallel to horizontal and vertical ways.
The milling machine is the worst, because it has all of the surfaces of the lathe, but it also has a Z surface which needs to be trued on two axes.
Fortunately the lathe and mill are not generally expected to produce work better than +- 1 thousandth, but the cylindrical grinder and the EDM have all of the same problems as the lathe and mill, but are held to a much higher standard...
I've been thinking about this, I have two possible solutions: 1. Air bearings which are obviously self-cleaning 2. Oil bearings with an oil pump which forces a continuous stream of fresh (filtered) oil into the bearings and sweeps away dust
Air bearings have really good precision, but they're expensive to buy commercially and not that easy to make, so I tend to lean toward #2, but I don't know how much oil flow you can push without it beginning to lift the carriage up off of the ways...
I imagine somebody has studied this because it seems weird not to...
I think it goes without saying that you'd like to have grinding in a room with lower air pressure than the machining room, but even grinders have surfaces, so there's still a problem that needs to be addressed...
Know how good your code needs to be for the task at hand. Start with a rough draft. Try to soften requirements if you can. Don't get distracted. Make small changes. Practice specific skills.
i dont even know if squeekboard *can* run on sway because as i understand it wayland is held together by one million protocol extensions that no one has bothered to standardize yet. the only alternative is an always-tiled one that 'sucks less,' the worst thing that can ever be said about a piece of software
@goosey Yes, it's still available for free! Paris released As-Easy-As 5.7 for free from his website, by sharing a valid registration code in their forums. The forums are offline now, but there's a link to it (via the Wayback website) in the video description. There's even a free PDF copy of the manual.
It's a great spreadsheet and I still love using it.
who wears their watch on the right wrist? Double layers of shits are a bit overdressed for summer. I think you should alert TSA immediately southpaw shouldnโt be able to fly.
I love flying, of course I havenโt flown since before the towers fell. Seats were wider and there was a barrier in fees to keep most of the unwashed off the plane. You might want to keep a mask dabbed with a bit of mint oil or some other pleasant smell.
@scottdhansen just a final note on the trip from MKE to DFW. The gal next to me was so large, she โspilled overโ, under the armrest onto my seat. I mean WTF?! If I wanted to be in contact with a stranger (who smelled BTW) the entire flight, I would have paid extra for it!
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The Trump administration is attacking academia because it threatens existing power structures and dominant elites. This is seen most clearly when it comes to Palestine.
https://x.com/KatieDaviscourt/status/1944153144499614076
Happening now: A man dressed in a pig costume is outside the ICE facility in Portland demanding โbig booty Latinasโ not be deported.
Iranโs President Masoud Pezeshkian suffered minor injuries in an Israeli air strike on a meeting of the Supreme National Security Council in Tehran on June 15, a senior Iranian official said.
The assassination attempt targeted the heads of the three branches of government in an effort to overthrow it, said the official, speaking on condition of anonymity.
The strike was carried out shortly before noon during a meeting attended by the heads of the executive, legislative, and judicial branches of the government along with other senior officials.
The semiofficial Fars news agency also reported new details on the assassination attempt during Israelโs 12-day war with #Iran, which was first announced by the Iranian president in an interview released on Monday.
The session was taking place in the lower level of a government facility in western #Tehran when the attack started, Fars reported. The buildingโs entrances and exits were hit by six missiles to block escape routes and cut off air flow.
Electricity was severed following the explosions, but Iranian officials managed to escape through a pre-designated emergency hatch, including the president, who is said to have sustained minor leg injuries while evacuating. aljazeera.com/news/2025/7/13/iโฆ #IsraelTerroristState #imperialism #war
Gribฤju saregulฤt velosipฤda Alfine11 rumbas pฤrslฤdzฤju, meklฤju video kฤ to dara, nekฤ laba nevar atrast, beigฤs ir viens video. Skatos, jฤ, ir labs! Jฤuzliek "Like". Skatos, "You liked this video 7 years ago" ๐
Enquรชte scientifiqueย aux origines du Covid-19, รฉpisode 1. Sciences et Avenir raconte comment, cinq ans aprรจs, les scientifiques sont de plus en plus nombreux ร questionner l'รฉmergence zoonotique (dite "naturelle") du virus.
Kurze Frage: Gibt es eine Mรถglichkeit in der Kachel "Circles" die Anzeige der neuen Beitrรคge hinter den einzelnen Circles zu deaktivieren? Siehe Screenshot:
@Fedinaut โ Dann schau mal unter fedivim.nospy.net/admin/site > Performance > "Erstelle Zรคhlungen je Circle bei der Berechnung der Netzwerkanzahl" und deaktiviere dort den Haken
TEHRAN (Tasnim) โ The United States government confirmed it is using Canary Mission, a notorious pro-Israel website, to target and expel pro-Palestinian activists, drawing outrage from civil rights groups accusing Washington of weaponizing anti-Palesโฆ
youtube.com/live/RdDdUxVz5Lw?sโฆ This Epstein mythology is not more important than keeping my real enemies out of power. I don't like either party, but this MAGA thing has accomplished more of what I want than any other movement.
The Right Wing Influencers have lost their mind over the Epstein case. I break it down here. ๐๏ธ New to streaming or looking to level up? Check out StreamYar...
"The world must not remain neutral in the face of this genocide. It must stand with the oppressed, lest the time comes when it faces injustice and is abandoned by the world. Everyone must unite against America and Israel. Freedom for Palestine ๐ต๐ธ"
The Israeli-made satellite, launched from Cape Canaveral aboard a SpaceX rocket, is set to restore and enhance Israel's satellite communications capabilities, nearly a decade after the loss of Amos 6 dealt a major blow to the country's space industry
@davetortoise, well, Android itself is FOSS, but full of Google APIs and controlled by it. But it exist also an de-googled version. Apart of this, there are a lot of alternatives
@Catweazle interesting article, I wasn't aware of a lot of that. Is it possible to run a live session on a mobile phone the same way you can on a desktop?
@davetortoise, I've never had done it in a phone. Andisearch said
Yes, it's possible to run different operating systems on mobile phones through virtualization and emulation, though with some limitations:
For Android phones: - Ubuntu Touch can be installed directly on compatible Android devices like the Google Pixel 3a/3a XL and Fairphone 4[^1] - Linux distributions like postmarketOS, Mobian, and Manjaro ARM can run on specific phone models[^11] - Windows 10/11 can be virtualized using QEMU, though performance is very slow and not practical for daily use[^19]
For newer Android 13+ phones: - Windows 11 ARM can run in a virtual machine thanks to improved virtualization support[^13] - According to developer Danny Lin, who demonstrated Windows 11 running on a Pixel 6: "Windows 11 as a VM on Pixel 6" is possible through Android 13's standardized virtualization system[^13]
For running Android within Android: - VMOS allows running a virtual Android environment inside your primary Android system, complete with Play Store access and root capabilities[^24]
The key limitations are: - Device compatibility is restricted to specific phone models - Performance may be significantly slower than native OS - Not all hardware features and peripherals are supported - Installation can be complex and may require technical knowledge
With the end of the colonial era, African states gained independence, adopted their own flags and national anthems. Yet true freedom remained elusive. The colonial powers never fully withdrew from the...
Stephen Kapos, an 87-year-old Holocaust survivor from Budapest, speaks out on Israel committing genocide in Gaza.He's such an inspiring voice, full of moral ...
A large crowd of protesters cheered and embraced 87yo Jewish Holocaust survivor Stephen Kapos as he arrived a Charing Cross police station, where he had been summoned for police questioning over a peaceful anti-genocide march on 18 January that police falsely claim โforcedโ its way through police lines. Despite abundant video evidence showing the protesters were invited through, more than twenty people have so far been charged.
Starmer keeps targeting Jewish people in his war on free speech and protest rights about Palestine and Israel Holocaust survivor Stephen Kapos on his way to Charing Cross police station, where he wโฆ
the power of Netanyahoo's mobilization of "antisemitism" as a weapon of war. The gullible governments of the west have thought that it has something to do with the evils of historical antisemitism. It does not.
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