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Liberar o transporte de bicicletas no trem de passageiros da Vale (Vitória a Minas)

chng.it/8CqP8cWQdz

@inconfidentespedalantes @belohorizonte #bicicleta #mastobikes #bicycle

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There's enormous power in just putting a name on a thing. We were all vaguely aware of how various Internet-based services were getting worse over time in a way that felt sort of deliberate. But since @pluralistic coined the term "enshittification" it's so much easier to see — and, in fact, impossible to AVOID seeing.

One more example: mstdn.social/@LikeItOrLumpIt/1…

I finished last night Attack Surface by @pluralistic and again a book from the Little Brother book series I loved reading! 👏 I wished there was a Book 4, so I will read the short novels

Time to read Careless People now following Cory's book review pluralistic.net/2025/04/23/zuc…

libertytree.ca/quotes/Fisher.A…

"...[O]ur sages in the great [constitutional] convention... intended our government should be a republic which differs more widely from a democracy than a democracy from a despotism. The rigours of a despotism often... oppress only a few, but it is the very essence and nature of a democracy, for a faction claiming to oppress a minority, and that minority the chief owners of the property and truest lovers of their country."

-- Fisher Ames
(1758-1808), American statesman

30 Zionist Bunker-Busters Pummel Ali al-Tahir Hill in Nabatieh South Lebanon #Palestine freepalestinetv.substack.com/p…

Simulating space on Earth for miniature satellite testing


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Video: 00:00:33

Inside a spherical cagelike structure, a small platform slowly spins as if floating. A single, bright lamp illuminates the scene, simulating the Sun. This setup constitutes the European Space Agency’s brand new facility for the testing of CubeSats – small satellites, usually no larger than a shoebox and weighing only a few kilograms.

This space-simulating facility, built for ESA by University of Bologna and Nautilus - Navigation in Space, is part of the Attitude and Control System (AOCS) & Pointing Systems laboratory at ESTEC, the Agency’s technical centre.

Just like any piece of machinery destined for space, CubeSats undergo rigorous testing on the ground, in conditions resembling space as closely as possible.

Andew Hyslop, ESA’s AOCS engineer, explains: “We can test attitude control systems separately or integrated in a complete CubeSat. An attitude control system is a combination of sensors, software and actuators that will make sure a CubeSat is in the right orientation when floating in space.”

To simulate the state of microgravity, the facility relies on an air bearing system – a device blowing a continuous stream of air upwards and creating a stable, invisibly thin air gap, allowing the platform suspended above it to float.

The CubeSat under test – or, in this case, its attitude control system – is mounted on this hovering platform.

“The system works out its orientation using Sun sensors, a magnetometer and a gyroscope. To stimulate the first, our setup includes a Sun lamp,” Andrew adds.

“However, Sun sensors tend to be susceptible to Earth’s ‘trickery’ – meaning some of the sunlight reflected from the Earth can be mistakenly interpreted as coming directly from the Sun. To take this effect into account, our facility includes an albedo lamp.”

Metal coils wrap around the curved bars that form the cage, simulating Earth’s magnetic field inside the structure. “As the spacecraft orbits our planet, the magnetic field it encounters keeps changing. Our metal coils replicate that.”

Andrew taps the hovering platform gently to initiate a spin. “To perform a test, we place the system on the air bearing in its starting orientation and optionally give it an additional tap. Then we let the attitude control system take over, stop the spin and get the platform back into the correct orientation.

“Like most attitude control systems on satellites in low Earth orbit, this one here uses reaction wheels to reorient itself. When these wheels start spinning, the spacecraft will spin in the opposite direction – according to conservation of angular momentum.

“Additionally, the floating platform is equipped with small reflective markers, which are being tracked by two cameras fixed to the top of the cage – this system gives us information of the platform’s true orientation. We can then compare this information to what the platform itself detects, to ensure its measurements are accurate,” Andrew notes.

The lab team recently finished testing and commissioning the facility to get it ready for its first customers. ESA CubeSat projects will soon be able to make use of it to gain confidence in their attitude control systems before flight.

#engineering #technology #space #science #esa #europeanspaceagency
posted by pod_feeder_v2

Back to light


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Night-time light emissions during blackout in Spain and Portugal

As the night closed in on Spain and Portugal on 28 April, polar satellites followed the blackout that lasted well into the early hours of the morning in several regions.

#human #space #science #esa #europeanspaceagency
posted by pod_feeder_v2

Webb reveals new details and mysteries in Jupiter’s aurora


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Close-up observations of auroras on Jupiter (December 2023)

The NASA/ESA/CSA James Webb Space Telescope has captured new details of the auroras on our Solar System’s largest planet. The dancing lights observed on Jupiter are hundreds of times brighter than those seen on Earth. With Webb’s advanced sensitivity, astronomers have studied the phenomena to better understand Jupiter’s magnetosphere.

#space #science #esa #europeanspaceagency
posted by pod_feeder_v2

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US, China reach deal to cut trade deficit, US officials say, details on Monday — Reuters tass.com/world/1956275
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pleroma - Link to source

woodland creature

@cjd @lain glass, steel, and PETE plastic is very recyclable. in theory most other plastics are recycleable it's just an issue of sorting and cleaning them that makes it difficult, and the general public isn't very good at cleaning and sorting so you end up with a lot of trash and unusable stuff mixed in. so the implementations of these single-stream recycling programs are causing problems. this is more of a motivation issue than a technical one.

Lenin: Learn from your enemies, comrade workers, who sympathise with the formation of a non-partisan workers’ organisation, or are at least indifferent to this desire! Call to mind the Communist Manifesto of Marx and Engels, which speaks of the transformation of the proletariat into a class in keeping with the growth not only of its unity, but also of its political consciousness.(2) Remember the example of such countries as England, where the class struggle of the proletariat against the bourgeoisie has been going on every where and at all times, in spite of which the proletariat has remained disunited, its elected representatives have been bought up by the bourgeoisie, its class-consciousness has been corrupted by the ideologists of capital, its strength has been dissipated through. the desertion of the masses of the workers by the labour aristocracy. Think of all this, comrade workers, and you will come to the conclusion that only a Social-Democratic proletariat is a proletariat conscious of its class tasks. Down with non-partisanship! Non-partisanship has always and everywhere been a weapon and slogan of the bourgeoisie. Under certain conditions, we can and must march together with proletarians who are not class-conscious, with proletarians who accept non-proletarian doctrines (the programme of the “Socialist-Revolutionaries”). But under no circumstances and at no time must we relax our strict Party approach, under no circumstances and at no time must we forget, or allow others to forget, that hostility to Social-Democracy within the ranks of the proletariat is a relic of bourgeois views among the proletariat. wordsmith.social/protestation/…


Quotes

  • Otto Kuusinen: As long as the working class wages only an economic struggle, the bourgeoisie does not see in that any great danger for itself; but when the working class organises politically, i.e., creates a political party which expresses its will as a class, the bourgeoisie begins seriously to fear for its rule. That is why reaction deals its main blows against the political party of the working class. At the same time, trying to undermine the party from within, capitalist propaganda endeavours to persuade the workers that they can do without their own party. One of the manifestations of bourgeois influence on the working class is the anarchist and anarcho-syndicalist denial of the leading role of a political party.
  • Democritus: Not from fear but from a sense of duty refrain from your sins.
  • Democritus: Many who have not learned wisdom live wisely, and many who do the basest deeds can make most learned speeches.
  • Democritus: Fools learn wisdom through misfortune.
  • Democritus: Strength of body is nobility in beasts of burden, strength of character is nobility in men.
  • Democritus: Neither art nor wisdom may be attained without learning.
  • Democritus: It is better to correct your own faults than those of another.
  • Democritus: Good means not (merely) not to do wrong, but rather not to desire to do wrong.
  • Democritus: Fame and wealth without wisdom are unsafe possessions.
  • Muammar Gaddafi: We will not surrender. We will defeat them by any means. We are ready for the fight, whether it will be a short or a long one. We will be victorious in the end. This assault is by a bunch of fascists who will end up in the dustbin of history.
  • Democritus: By convention sweet is sweet, bitter is bitter, hot is hot, cold is cold, color is color; but in truth there are only atoms and the void.
  • Democritus: We know nothing accurately in reality, but (only) as it changes according to the bodily condition, and the constitution of those things that flow upon (the body) and impinge upon it.
  • Democritus: Medicine heals diseases of the body, wisdom frees the soul from passions.
  • Democritus: Immoderate desire is the mark of a child, not a man.
  • Democritus: Men have fashioned an image of Chance as an excuse for their own stupidity.
  • Democritus: In a shared fish, there are no bones.
  • Democritus: Education is an ornament for the prosperous, a refuge for the unfortunate.
  • Democritus: The animal needing something knows how much it needs, the man does not.
  • Democritus: Moderation multiplies pleasures, and increases pleasure.
  • Democritus: If your desires are not great, a little will seem much to you; for small appetite makes poverty equivalent to wealth.
  • Democritus: No power and no treasure can outweigh the extension of our knowledge.
  • Democritus: In fact we do not know anything infallibly, but only that which changes according to the condition of our body and of the (influences) that reach and impinge upon it.
  • Democritus: Of practical wisdom these are the three fruits: to deliberate well, to speak to the point, to do what is right.
  • Democritus: 'Tis not in strength of body nor in gold that men find happiness, but in uprightness and in fulness of understanding.
  • Democritus: He who does wrong is more unhappy than he who suffers wrong.
  • Samuel P. Huntington: The West won the world not by the superiority of its ideas or values or religion (to which few members of other civilizations were converted) but rather by its superiority in applying organized violence. Westerners often forget this fact; non-Westerners never do.
  • Marjori Palmer: One of the most morale-damaging aspects of the inflation was the "sack of Germany" that occurred at the height of the (1923) inflation. Anyone who possessed dollars or sterling was king in Germany. A few American dollars would allow a man to live like a millionaire. Foreigners swarmed into the country, buying up family treasures, estates, jewelry and art works at unbelievable low prices.
  • Lionel Robbins: It was the most colossal thing of its kind in history: and next probably to the Great War itself, it must bear responsibility for many of the political and economic difficulties of our generation. It destroyed the wealth of the more solid elements of German society: and left behind a moral and economic disequilibrium, a breeding ground for the disasters which have followed. Hitler is the foster child of the inflation.
  • Lenin: There is no trace of utopianism in Marx, in the sense that he made up or invented a 'new' society. No, he studied the birth of the new society out of the old, and the forms of transition from the latter to the former, as a natural-historical process. He examined the actual experience of a proletarian mass movement and tried to draw practical lessons from it.
  • Che Guevara: Many will call me an adventurer - and that I am, only one of a different sort: one of those who risks his skin to prove his platitudes.
  • Democritus: The first principles of the universe are atoms and empty space; everything else is merely thought to exist.
  • Bertolt Brecht: Lenin is enshrined In the large heart of the working class.


Video Shows Israeli Soldier in Civilian Clothing Fatally Shooting Unarmed Palestinian Man in Nablus #Palestine qudsnen.co/video-shows-israeli…

General Secretary of Vietnam’s Communist Party To Lam arrives in Minsk on official visit eng.belta.by/politics/view/gen…