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3D Print Yourself A Split Flap Display


Split flap displays! They’re mechanical, clickety-clackity, and largely commercially irrelevant in our screen-obsessed age. That doesn’t mean you can’t have a ball making one of your own, though! [Morgan Manly] did just that, with tidy results.

An ESP32 C3 SuperMini serves as the boss of the operation, running the whole display. The display is designed to be modular, so you can daisy chain multiple characters together to spell longer words. Each module has 37 characters, so it can display the alphabet, numerals 0 to 9, and a blank. Each module contains a 28BYJ-48 stepper motor for controlling the flaps, and a ULN2003 driver board to run it and a PCF8575 IO expander to handle communciation. An A3144 hall effect sensor is also used for positional feedback to ensure the display always shows the right character. The flap mechanism itself is relatively straightforward—a drum with all 37 flaps is until the correct character is reached, with the blank flaps hosting a magnet to trigger the aforementioned hall effect sensor. The flaps themselves are 3D-printed, with filament changes used to color the characters against the background.

If you’ve ever dreamed of building a flap-display clock or ticker, you needn’t dream of finding the perfect vintage example. You can just build your own! The added bonus is that you can make it as big or as small as you like. We’ve seen some interesting variations on the split flap concept recently, too. If you’re cooking up your own kooky electromechanical displays, don’t hesitate to let us know!


hackaday.com/2025/02/20/3d-pri…



Microsoft (Again) Claims Topological Quantum Computing With Majorana Zero Mode Anyons


As the fundamental flaw of today’s quantum computers, improving qubit stability remains the focus of much research in this field. One such stability attempt involves so-called topological quantum computing with the use of anyons, which are two-dimensional quasiparticles. Such an approach has been claimed by Microsoft in a recent paper in Nature. This comes a few years after an earlier claim by Microsoft for much the same feat, which was found to be based on faulty science and hence retracted.

The claimed creation of anyons here involves Majorana fermions, which differ from the much more typical Dirac fermions. These Majorana fermions are bound with other such fermions as a Majorana zero mode (MZM), forming anyons that are intertwined (braided) to form what are in effect logic gates. In theNature paper the Microsoft researchers demonstrate a superconducting indium-arsenide (InAs) nanowire-based device featuring a read-out circuit (quantum dot interferometer) with the capacitance of one of the quantum dots said to vary in a way that suggests that the nanowire device-under-test demonstrates the presence of MZMs at either end of the wire.

Microsoft has a dedicated website to their quantum computing efforts, though it remains essential to stress that this is not a confirmation until their research is replicated by independent researchers. If confirmed, MZMs could provide a way to create more reliable quantum computing circuitry that does not have to lean so heavily on error correction to get any usable output. Other, competing efforts here include such things as hybrid mechanical qubits and antimony-based qubits that should be more stable owing to their eight spin configurations.


hackaday.com/2025/02/20/micros…



Open-Source Random Numbers


Whether it’s a game of D&D or encrypting top-secret information, a wide array of methods are available for generating the needed random numbers with high enough entropy for their use case. For a tabletop game this might be a single die but for more sensitive applications a more robust method of generating random numbers is needed. Programmers might reach for a rand() function of some sort, but these pseudorandom numbers don’t cut the mustard for encryption. For that you’ll need a true random number generator (RNG), and this open-source hardware RNG uses one of the better methods we’ve seen.

The device, called RAVA, is based on a property found in many electronic devices called avalanche breakdown. Avalanche breakdown occurs when a high voltage (in this case approximately 25V) is applied in the reverse bias direction, with this device using a pair of Zener diodes. When this high voltage is applied, an “avalanche” of electrons occurs which allows the diodes conduct in the opposite direction that they would when they are forward biased. This isn’t a constant current flow, though; there are slight variations over time which can be amplified and used as the random number generator. The noise is amplified over a series of op amps and then fed to an ATmega32U4 microcontroller which can provide the user with 136.0 Kbit/s of random data.

Unlike other random number generators, this device is based on a method generally accepted to be truly random. Not only that, but since it’s based on discrete hardware it can be accessed directly for monitoring and replacement in case of faults, unlike other methods which are more “black boxes” and are more opaque in their processes which are thus harder to audit. We also appreciate it’s open-source nature as well, and for some more information on it be sure to check out the paper on it in IEEE. If you’re looking for something to generate random numbers but will also bring some extra flair to the next game night, take a look at this radioactive dice replacement.


hackaday.com/2025/02/20/open-s…

OpenSoul ✅ reshared this.



Sto rivalutando la dipendenza dallo smartphone delle persone. Le vedo per strada, al ristorante, al cinema, occupano uno spazio fisico, però non sono presenti. Sono nel loro smartphone mentre si perdono la vita, così lasciano più spazio agli altri per viverla.


DIY Yagi Antenna Sends LoRa Signals Farther


LoRa gear can be great for doing radio communications in a light-weight and low-power way. However, it can also work over great distances if you have the right hardware—and the right antennas in particular. [taste_the_code] has been experimenting in this regard, and whipped up a simple yagi antenna that can work at distances of up to 40 kilometers.

The basic mathematics behind the yagi antenna are well understood. To that end, [taste_the_code] used a simple online calculator to determine the correct dimensions to build a yagi out of 2 mm diameter wire that was tuned for the relevant frequency of 868 MHz. The build uses a 3D-printed boom a handle and holes for inserting each individual wire element in the right spot—with little measuring required once the wires are cut, since the print is dimensionally accurate. It was then just a matter of wiring it up to the right connector to suit the gear.

The antenna was tested with a Reyas RYLR998 module acting as a base station, with the DIY yagi hooked up to a RYLR993 module in the field. In testing, [taste_the_code] was able to communicate reliably from 40 kilometers away.

We’ve featured some other unique LoRa antenna builds before, too. Video after the break.

youtube.com/embed/gA5SCXw_E1Q?…


hackaday.com/2025/02/20/diy-ya…



#Trump e l'esecutivo assoluto


altrenotizie.org/primo-piano/1…


Queste merde non si levano più nemmeno dopo una condanna. Bisogna tornare ai vecchi sistemi...

ansa.it/sito/notizie/cronaca/2…



Inglese, esperanto o interlingua?


Quale lingua per le relazioni tra persone di nazioni diverse?
Inglese, esperanto o interlingua? O altro?
in reply to Roberto Pellegrino

@Roberto Pellegrino
Il più logico sarebbe l'esperanto. Ma le utopie, anche razionali, perdono di fronte al predominio di un popolo (cfr. impero britannico)




UNIX Archaeology Turns Up 1972 “V2 Beta”


In 1997 a set of DEC tapes were provided by Dennis Ritchie, as historical artifacts for those interested in the gestation of the UNIX operating system. The resulting archive files have recently been analysed by [Yfeng Gao], who has succeeded in recovering a working UNIX version from 1972. What makes it particularly interesting is that this is not a released version, instead it’s a work in progress sitting somewhere between versions 1 and 2. He’s therefore taken the liberty of naming it “V2 Beta”.

If you happen to have a PDP-11/20 you should be able to run this operating system for yourself, and for those of us without he’s provided information on which emulator will work. The interesting information for us comes in the README accompanying the tapes themselves, and in those accompanying the analysis. Aside from file fragments left over from previous users of the same tape, we learn about the state of UNIX time in 1972. This dates from the period when increments were in sixtieths of a second due to the ease of using the mains power frequency in a PDP, so with a 32-bit counter they were facing imminent roll-over. The 1970-01-01 epoch and one second increments would be adopted later in the year, but meanwhile this is an unusual curio.

If you manage to run this OS, and especially if you find anything further in the files, we’d love to hear. Meanwhile, this is not the oldest UNIX out there.


PDP-11/20 image: Don DeBold, CC BY 2.0.


hackaday.com/2025/02/20/unix-a…



Social platforms are not, and can not, be neutral in a context of authoritarianism, and Bluesky cannot avoid this dynamic either. On a lighter note, many experiments with building image and video clients for Bluesky are ongoing, more insight in how ATProto can scale down, and more.


(Estratto da: “Il bisogno di pensare” di Vito Mancuso)

Sono alla ricerca di un punto fermo su cui appoggiarmi per sollevare la mente dai traffici quotidiani e provare a dare stabilità e prospettiva alla mia vita. Ricerco la roccia su cui costruire una casa che possa resistere all'imperversare delle acque e dei venti a cui è inevitabilmente esposta l'esistenza. Tocco il mio corpo, con la mano destra premo l'avambraccio sinistro, poi con entrambe le mani premo le gambe mi metto le mani sulla testa stringendola forte, allargo le braccia, stringo i pugni, faccio i muscoli, provo un sentimento piacevole nel sentire la solidità dei bicipiti. Io sono. Mi metto a correre. Sono sulla spiaggia del mare e corro cadenzato, resistente, non mi fermo, i muscoli rispondono, il fiato è controllato. Io sono. Questa solidità della materia corporea mi dà soddisfazione e sicurezza, e mi viene da pensare con un sorriso che è il mio corpo il mio punto fermo.
Il che è vero, e non è vero. È vero, perché il mio corpo contiene la risposta al senso della mia vita a livello formale, in quanto portatore della logica dell'armonia relazionale; non è vero, perché il mio corpo non è per nulla fermo, anzi già ora non è più forte ed elastico come quando ero giovane e lo sarà sempre meno con il passare dei giorni, fino alla fine inevitabile che attende tutti i fenomeni che nascono nel tempo. Basterebbe questo per dimostrare la falsità di quel realismo ingenuo, su cui purtroppo molti strutturano la loro esistenza, che fidandosi del corpo e conoscendo solo il corpo, conduce a collocare nella materia corporea e in tutto ciò che la soddisfa (cibo, piaceri, abiti, gioielli, ricchezze...) il senso stesso del vivere.
In realtà questo realismo ingenuo del senso comune non regge non solo perche il corpo è destinato a scomparire, ma anche perche l'atomo è praticamente vuoto. Qualcuno si chiederà che cosa c'entra l'atomo e io ora cercherò di argomentare.
Da molti anni ormai la fisica ci insegna che rispetto al volume complessivo dell'atomo il nucleo è piccolissimo, e rispetto al nucleo gli elettroni sono ancora più minuscoli, così evanescenti che non si sa se abbiano natura corpuscolare oppure ondulatoria. Un esperto ha scritto che, se immaginiamo il nucleo largo 10 cm, l'intero atomo dovrebbe estendersi per 10 km.
Ora 10 cm è più o meno una spanna, unità di misura popolare data dalla mano aperta..... Ora aprite bene la mano a formare una spanna e pensate a un punto distante 10 km da dove vi trovate. Guardate i 10 cm della vostra mano aperta e andate con la mente a quel punto che avete prescelto, immaginando come vuoto tutto lo spazio nel mezzo. 10 km di vuoto! Gli esperti ci dicono che sono queste le proporzioni dell'atomo, cioè del fondamento della materia: il quale, a questo punto, appare come uno spazio quasi interamente vuoto. La materia tuttavia a noi risulta piena, dura, solida, e questo avviene perche essa deriva la sua compatta consistenza dal vorticare a velocità impensabili degli elementi atomici, i quali a loro volta tracciano danze a velocita estreme.

andreas reshared this.



In questo assurdo mondo è l'aggredito a doversi giustificare per volere perseguire una pace giusta.

Peggio di così rimane davvero solo l'asteroide.

mstdn.social/@noelreports/1140…


Zelensky: "Ukraine has been seeking peace from the first second of this war, and we can and must make peace reliable and lasting so that Russia can never return with war again. Ukraine is ready for a strong, truly beneficial agreement with the President of the United States on investments and security. We have proposed the fastest and most constructive way to achieve a result. Our team is ready to work 24/7. "

Emanuele reshared this.

in reply to Simon Perry

Se solo l'unione europea fosse davvero una unione.. Invece non vale nulla di fronte alle grandi potenze. Che grande delusione,dover vedere questi soprusi e non poter fare nulla..
Trump distrugge tutto quello che tocca e con suo amico Putin si partirà il mondo.
Ursula e tutti noi staremo a guardare dal balcone.
in reply to Emanuele

@Emanuele sì, sche si sbricioli in centinaia e centinaia di pezzettini che colpiscano chirurgicamente.
in reply to Emanuele

@Emanuele purtroppo è così. Come dicevo in un altro post è il momento di amare l'Europa, proprio perché è in grande difficoltà e crisi di identità.

Leggo invece tanti pensieri che la vogloino smembrata, "tanto non serve a niente".

in reply to Simon Perry

I faciloni, semplicisti e complottisti vari la fanno facile.
Torniamo alla lira urlano belli tronfi.
L'Europa smembrata è esattamente quello che vogliono le grandi potenze tutte.
L'unione è giovane, richiede impegno e resilienza con visione unita e partecipata, tutte belle parole che però i governanti dei singoli stati non possono perseguire per via degli interessi dei propri stati oltre che per le divergenze di visione politica che si alternano continuamente.
in reply to Emanuele

@Emanuele comunque riflettevo che su questo c'è un piano preciso, e non è un complotto. Una UE unita e forte darebbe fastidio a chiunque.

Basta vedere l'oggetto delle fake news russe, mirano sempre a destabilizzarci

in reply to Simon Perry

Certamente c'è un piano preciso e il nostro presidente del consiglio è un asset fondamentale nelle mani di #trump &co.
Vedremo che fine ci faranno fare, io vedo solo nubi molto scure all'orizzonte.

Ma hai visto il post di Trump con la corona in testa dove proclama "lunga vita la re"?
AGGHIACCIANTE

in reply to Emanuele

@Emanuele si. Agghiacciante e distopico.

Poco fa ascoltavo le imprese del loro grande amico bolsonaro.

Ome ci siamo arrivati? Purtroppo lo sappiamo.



Andrea Casu del Pd alza le barricate contro Musk in Parlamento: “Il governo sostenga l’industria nazionale”


@Politica interna, europea e internazionale
Il Partito democratico ha chiesto al Governo Meloni di “garantire il sostegno all’industria nazionale” dell’Aerospazio, sottolineando i rischi di “aprire la porta a Starlink di Elon Musk, mettendo in secondo piano le imprese italiane ed europee del



The company, which owns IGN, CNET, PCMag, and dozens more outlets and properties, took down specific information about its diversity commitment on multiple pages on its website over the past several weeks. #dei
#Dei


Fediversici amici, leggo tanto sconforto e tanti commenti disfattisti in merito all'Europa, soprattutto per quella che sembra essere una spinta all'inerzia in un momento in cui ci si auspicherebbero invece reazioni forti da parte nostra, in merito tutto quello che conta accadendo intorno.

Non fraintendetemi, io stesso non capisco come certe cose siano possibili; non capisco come possa accadere che ci si muove scompostamente, dopo che abbiamo investito tanto su un'Europa unita e per coso tanto tempo.

Credo però che non dobbiamo cedere ai pensieri disfattisti, ma piuttosto reagire (non so come, lo ammetto).

Leggo su alcuni profili che l'Europa andrebbe sciolta perché ormai inutile, ma io dico di no. Se il condominio in cui viviamo non ci soddisfa, la soluzione non può essere quella di raderlo al suolo, o smembrarlo: dopo, non avremmo più una casa.

Stiamo più attenti a chi scegliamo come amministratore; facciamo altre cose, facciamo qualsiasi altra cosa ma il condominio non va smembrato, o sarà la fine per tutti. Anzi, sarebbe proprio questo il momento di volere molto più bene alla nostra casa.

#Europa #UE #EU #Europe #trump #russia #ucraina #Musk

reshared this



Leonardo e Baykar fanno asse sui droni? Ecco le ultime novità

@Notizie dall'Italia e dal mondo

Secondo un articolo apparso sul Fatto Quotidiano, Leonardo sarebbe in trattative con l’azienda turca Baykar per una possibile collaborazione sui droni militari. Stando alle indiscrezioni, un Memorandum of Understanding (MoU) tra le due aziende sarebbe già pronto o comunque in fase avanzata di



Spese per la Difesa, la Danimarca punta a superare il 3% del Pil

@Notizie dall'Italia e dal mondo

La Danimarca ha deciso di rafforzare in modo significativo il proprio comparto difensivo. La prima ministra danese, Mette Frederiksen, ha annunciato che Copenaghen porterà la spesa militare al 3,2% del Pil nei prossimi due anni, rispetto al 2,37% del 2024. Un incremento che segna una svolta



È uscito il nuovo numero di The Post Internazionale. Da oggi potete acquistare la copia digitale


@Politica interna, europea e internazionale
È uscito il nuovo numero di The Post Internazionale. Il magazine, disponibile già da ora nella versione digitale sulla nostra App, e da domani, venerdì 21 febbraio, in tutte le edicole, propone ogni due settimane inchieste e approfondimenti sugli affari e il potere in



Chi sono?


Per molte persone, sono Trent.
Non mi piace etichettarmi con ciò che faccio nella vita o con la mia professione, anche se l'ho fatto nella descrizione del mio profilo 🤯
Sono un operatore di Sanità Pubblica nell'ambito delle Cure Primarie, ma credo che in un universo parallelo sarei un informatico o un astronomo. Le mie competenze informatiche sono infatti ridotte, ma sufficienti ad avermi fatto avvicinare al mondo del Fediverso e del self-hosting, con lo scopo principale di tenermi lontano dalla spazzatura che è diventato Internet negli ultimi anni.
Sono presente pure su Mastodon (mastodon.uno/@trentwave) e ho aperto molto recentemente un blog su Writefreely (noblogo.org/dispettosociosanitario), quest'ultimo per ironizzare e polemizzare in maniera pulita sulle situazioni che mi capitano al lavoro, e, talvolta, per esprimere il mio personalissimo punto di vista sul mondo. In futuro, mi piacerebbe sfruttare il blog per fare anche un po' di debunking in ambito di #fisioterapia e #riabilitazione, e per fornire una buona informazione basata su evidenza e prove di efficacia.


La Darpa rilancia sul quantum. Ecco come

@Notizie dall'Italia e dal mondo

Il programma Quantum Benchmarking Initiative (Qbi) della Defense Advanced Research Projects Agency sta registrando risultati inaspettati dallo sviluppo dei computer quantici, risultati che hanno portato lo stesso capo del progetto Joe Altepeter (che tralaltro si autodefinisce un “quantum skeptic”) ad annunciare una nuova tranche di




#NoiSiamoLeScuole, il video racconto di questa settimana è dedicato a due Scuole primarie della provincia di Terni, la “Goffredo Mameli” di Amelia e la “Albert Bruce Sabin” di San Gemini, che, con i fondi #PNRR destinati alla realizzazione di nuove s…




Una barriera di droni. L’esperimento delle forze armate ucraine

@Notizie dall'Italia e dal mondo

“The Drone Line”. Così è stato definito il progetto, annunciato lo scorso 9 febbraio dal ministero della Difesa di Kyiv, di costituire una “unmanned kill zone” che vedrebbe le più avanzate unità di droni ucraini schierare un mix di macchine con capacità di sorveglianza e d’attacco contro le truppe russe. Il progetto, come



A class-action lawsuit filed against the surgeon claims he also did nothing to protect his patients’ data, including their financial information and nude photos of them.#News #Hacking


Hoopla has emailed librarians saying it’s removing AI-generated books from the platform people use to borrow ebooks from public libraries.#Impact


Balneari, il Tar della Liguria boccia la proroga del Governo: “Manca un accordo scritto con l’Ue”


@Politica interna, europea e internazionale
Il Tar della Liguria ritiene non valido il decreto con cui il Governo ha prorogato fino al 30 settembre 2027 le concessioni per gli stabilimenti balneari. Secondo i giudici amministrativi, il provvedimento è nullo poiché si basa su un accordo con la



L’Argentina si prepara all’8 marzo anti-Milei


@Notizie dall'Italia e dal mondo
Tutto pronto per la grande giornata di festa e mobilitazione femminista e antifascista contro il presidente
L'articolo L’Argentina si prepara all’8 marzo anti-Milei proviene da Pagine Esteri.

pagineesteri.it/2025/02/20/ame…



La pazienza mi ha fatto visita - Tahlia Hunter


La pazienza mi ha fatto visita
E mi ha ricordato
Che le cose belle richiedono tempo per maturare
E crescono lentamente con stabilità.
La pace mi ha fatto visita
E mi ha ricordato
Che posso rimanere calma attraverso le tempeste della vita,
Indipendentemente dal caos che mi circonda.
La speranza mi ha fatto visita
E mi ha ricordato
Che tempi migliori mi aspettano
E che sarà sempre lì per guidarmi e sollevarmi.
L’umiltà mi ha fatto visita
E mi ha ricordato
Che posso raggiungerla
Non riducendo me stessa o facendomi piccola,
Ma concentrandomi sul servire il mondo
E sull’elevare chi mi sta intorno.
La gentilezza mi ha fatto visita
E mi ha ricordato
Di essere più dolce, indulgente e compassionevole
Verso me stessa
E verso chi mi circonda.
La fiducia mi ha fatto visita
E mi ha ricordato
Di non nascondere o reprimere i miei doni e talenti
Per far sentire gli altri più a loro agio,
Ma di abbracciare ciò che mi rende unica.
La concentrazione mi ha fatto visita
E mi ha ricordato
Che le insicurezze e i giudizi altrui
Non sono un mio problema.
Dovrei reindirizzare la mia attenzione
Dagli altri verso di me.
La libertà mi ha fatto visita
E mi ha ricordato
Che nessuno ha controllo sulla mia mente,
Sui miei pensieri e sul mio benessere,
Se non io stessa.
L’amore mi ha fatto visita
E mi ha ricordato
Che non ho bisogno di cercarlo negli altri,
Perché si trova già dentro di me.

Tahlia Hunter



L’incidente di Keith Richards
freezonemagazine.com/rubriche/…
LET IT BLEED un titolo che suona simile al tormentato LET IT BE dei Beatles, è il disco che con splendide canzoni, Gimme Shelter in particolare, racconta i tumulti del mondo a fine decennio e segna la chiusura della prima grande era dei Rolling Stones. Era un’epoca di guerra e di tensioni sociali e tutto […]
L'articolo L’incidente di Keith Richards proviene da FREE ZONE MAGAZINE.
LET IT BLEED


#Cina e Cook, panico nel Pacifico


altrenotizie.org/primo-piano/1…


La telefonata ammazza-NATO


altrenotizie.org/spalla/10586-…



#Trump è il colpo di grazia ad un mondo già morente su temi come democrazia, tolleranza, ambiente, pace. Cioè, su tutto.

Il mondo è già finito ma non ce ne stiamo accorgendo.

E con questo pensiero allegro mi avvio verso l'ufficio e i miei flussi di Tableau Prep.

#andratuttobene #apocalisse #finedelmondo

nadia_dagaro reshared this.

in reply to Simon Perry

😂 😂 😂
ma è bellissimo 😍
P.S. anche io ho la randagia adottata, si chiama Gina Re.
Meglio conosciuta come Re Gina..
in reply to Emanuele

@Emanuele Blu è un gatto che, se opportunamente abituato, potrebbe tranquillamente vivere in casa. Certo, è un bel maschione massiccio e un po' burbero, a volte aggressivo se non lo si tocca nel modo giusto (dal collo in giù è off limits), ma del resto molti felini sono così.

E anche molte persone, a ben pensarci 🙄



AN AGENCY FOR UNIMAGINED WEAPONS


Mad Men

On the evening of October 4, 1957, Neil McElroy was enjoying cocktails in Huntsville, Alabama, fresh from a doomsday tour of the United States. McElroy, who was about to become the secretary of defense, was chatting with the army general John Medaris and the German rocket scientist Wernher von Braun during a casual reception held as part of McElroy’s tour of the Army Ballistic Missile Agency. It was one of many visits the secretary designate and his entourage were making around the country as he prepared to lead the Pentagon.
Huntsville should have been the least memorable stop for McElroy, who had been traveling the past few weeks in a converted DC-6 transport aircraft reserved primarily for the secretary of defense. Along the way, he was plied with fine liquor and deluxe accommodations, all while getting a crash course in overseeing a military at the dawn of the age of nuclear Armageddon.
The new position was a big change for McElroy. His last job was heading Procter & Gamble, the consumer products company based in Cincinnati, Ohio. McElroy, who had no prior experience in government, was one of the “industrialists” Eisenhower had brought to the capital in the belief that business-style leadership could help straighten out government.
The media had not been kind to McElroy after Eisenhower picked him to head the Pentagon. The native Ohioan had made his name in the nascent field of “brand management,” penning a famous letter admonishing Procter & Gamble executives on the importance of promoting the company’s soaps to the proper consumer markets so that the products would not compete with each other. “Soap manufacturer Neil McElroy is president’s choice to succeed Wilson,” The Milwaukee Journal declared on August 7. Another report mocked McElroy’s experience in advertising, saying that he had been responsible for “vital activities in persuading housewives to buy one bar of soap or another.”
Now McElroy and his entourage were being wined and dined across the country by military officials pitching their soon-to-be boss on the importance of their aircraft, missiles, and bases in case of nuclear confrontation with the Soviet Union—all in between plenty of martinis. At Strategic Air Command, near Omaha, Nebraska, they were greeted with a table covered in whiskey, ice, and “fixings,” before being shown the control room, where military commanders could launch a nuclear attack. Later, General Curtis LeMay, the head of Strategic Air Command, personally piloted a demonstration of the new KC-135, a refueling aircraft, for McElroy and his staff.
At Edwards Air Force Base in the high desert north of Los Angeles, the group met General Bernard Schriever, the head of the Western Development Division, which was responsible for developing intercontinental ballistic missiles. McElroy and his entourage took an immediate liking to the air force general, who was “extremely able” and could “shoot golf at par.” In Colorado, at North American Aerospace Defense Command, better known by its acronym NORAD, the group was assigned luxury suites at the Broadmoor, whose mountainview rooms were stocked with bottles of scotch and bourbon. The next day they were briefed on the calculus of a survivable nuclear war, where commanders had to weigh the lives of three million civilians versus protecting a key military site. It was a world, McElroy’s aide, Oliver Gale, wrote, “where horror is as much a part of the scene as manufacturing cost is in the soap business.” The final stop on McElroy’s itinerary was Redstone Arsenal in Huntsville, a quiet southern town in Alabama whose economy was rapidly shifting from cotton mills to rocket production. General Medaris, commander of the Army Ballistic Missile Agency, was polite but unimpressed by McElroy. The problem with a businessman is that he can “become a sort of czar, surrounded by subordinates who carry out his orders and obey his whims without daring to question his judgment,” he wrote in his memoir just a few years following that meeting. “This gives him the illusion that he knows all the answers. He rarely does, outside his own general field.”
Neither were McElroy and his staff impressed with the army general, who sported a black mustache and was known for dressing in old-fashioned officer riding breeches. Medaris was a “salesman, promoter, who pushes a bit more than might be considered palatable,” wrote Gale, who worked for McElroy at Procter & Gamble and was following him to the Pentagon. Coming from an advertising man, the description was telling. Medaris was trying to sell the services of von Braun and his group of German rocket scientists, who were now based in Huntsville but could not seem to shake their Nazi past. “Von Braun was still wistful about what would have happened if [the V-2s] had all gone off,” Gale recorded in his journal, “not because he was sorry that Germany did not win the war (apparently) but because he was sorry his missiles, his achievements, had not been more successful.”
Even in Huntsville, the Germans found themselves stymied by the military, starved for funds, and frozen out of the space work they desperately wanted. They were stuck working, yet again, on suborbital missiles. The problem was not scientific know-how but classic bureaucratic rivalry. By the fall of 1957, von Braun’s army group had developed the Jupiter-C missile, a four-stage rocket that could have been shot into orbit, if only the army was allowed to launch it. It was not, and so the fourth stage of von Braun’s Jupiter-C was filled with sand, rather than propellant, to ensure it would not leave the atmosphere. Medaris had reason to be skeptical of the incoming defense secretary and his visit. McElroy was replacing Charles “Engine Charlie” Wilson, another captain of industry appointed by Eisenhower. As defense secretary, Wilson threw himself into budget cutting with a passion, carrying out Eisenhower’s New Look defense policy, which emphasized advanced technology, such as nuclear weapons and airpower, over conventional forces. Yet satellites, in Wilson’s view, were “scientific boondoggles.” He did not understand what purpose they would serve for the military. When Wilson had visited Huntsville, army officials tried to impress him with their work, only to have the money-conscious defense secretary interrogate them on the cost of painting wood in his guest quarters.
With McElroy’s visit in the fall of 1957, just days away from becoming secretary of defense, it did not seem apparent to Medaris that the new Pentagon chief would chart a different course. As Medaris, McElroy, and von Braun exchanged pleasantries over drinks, an excited public relations officer interrupted the party with news. The Russians had launched a satellite, and The New York Times was seeking comment from von Braun. “There was an instant of stunned silence,” Medaris recalled.
News of Sputnik was a surprise, but it should not have been. In 1955, the Eisenhower administration announced plans to launch a small scientific satellite as part of the upcoming International Geophysical Year, which would run from July 1957 to December 1958. Not to be outdone, the Soviets countered with their own satellite launch plans. It was always a race, but one in which the United States assumed it had a natural advantage. The Soviet Union could not produce a decent automobile; how could it possibly hope to best the United States in rocket science? In the meantime, American plans for a satellite launch had fallen behind schedule.
However flawed the Soviet Union’s consumer goods industry, the regime had an advantage when it came to military and space research. An authoritarian state could focus resources on a specific goal, like a satellite launch, without the bureaucratic wrangling or public pressures that afflicted a democracy like the United States. The Eisenhower administration, prompted by its civilian scientists, wanted to keep its scientific satellite launches separate from its missile programs, even though the underlying technology was nearly identical. That was why the White House opted instead for the navy’s Vanguard, much to von Braun’s disappointment.
Now, with the soon-to-be defense secretary in front of him, and Sputnik circling overhead, the words began to tumble out of von Braun. “Vanguard will never make it,” the German scientist said. “We have the hardware on the shelf. For God’s sake turn us loose and let us do something. We can put up a satellite in sixty days, Mr. McElroy! Just give us a green light and sixty days!”
“No, Wernher, ninety days,” Medaris interjected.
McElroy had been the guest of honor, but now everyone circled von Braun, peppering the German rocket scientist with questions. Was it really true that the Soviets had launched a satellite? Probably, von Braun replied. Was it a spy satellite? Probably not, though its size and weight, if accurately reported, meant that it could be used for reconnaissance. And what did it all mean? It meant that the Soviets had a rocket with a sizable thrust, von Braun said.
The general and the rocket scientist spent the rest of the evening trying to persuade McElroy to let them launch a satellite. It is likely that the details were well beyond the grasp of McElroy, who had no background in technical issues. The conversation did impart to McElroy at least the importance of the satellite launch, which he might have otherwise missed. At first glance, the satellite did not seem like an immediate threat to the incoming defense secretary. Sputnik weighed 184 pounds and its sole function was to circle the earth, emitting a beep that could be tracked from the ground. For McElroy, the man most closely tied to the response to Sputnik, the launch was something of a fascinating footnote to a pleasant cocktail party. His aide, Gale, devoted more space to describing a recent evening meal of exotic seafood on the coast of California than he did to the world’s first satellite launch. Yet Sputnik was about to trigger a chain reaction that, by the New Year, would engulf all of Washington.

Years later, a myth emerged that the Soviet “artificial moon” immediately prompted people around the country to stare up at the sky in fear and apprehension. “Two generations after the event, words do not easily convey the American reaction to the Soviet satellite,” a NASA history covering the time period states. “The only appropriate characterization that begins to capture the mood on 5 October involves the use of the word hysteria.”
In fact, there was no collective panic in the first few days following the launch. It was not immediately clear—except to a small group of scientists and policy makers—why the satellite was so important. For those involved in science and satellites, like von Braun and Medaris, the Soviet satellite circling the earth was proof that politics had hampered the American space effort. Yet for most Americans, the beeping beach ball initially produced a collective shrug.
That Sputnik failed to shake the heartland to its core was best demonstrated in Milwaukee, where the Sentinel’s bold large-type headline on October 5 announced, “Today, We Make History.” In fact, the headline had nothing to do with Sputnik but referred to the first World Series game to be played in Milwaukee. News of Sputnik was buried deep in the paper’s third section, where the reporter noted merely that news of the unexpected launch had “electrified” an international meeting in Washington to discuss satellites.
In the days following the launch of Sputnik, the Washington bureaucracy moved in slow motion. Eisenhower’s attention in the weeks leading up to Sputnik was focused on much more earthbound matters. The standoff over the first attempt to integrate schools in Little Rock, Arkansas, under court order had ended with the president’s sending in federal troops. By comparison, the launch of a satellite armed with nothing more than a beacon did not initially seem like something that was going to capture public attention. At a National Security Council meeting held on October 10, Eisenhower listened as his advisers hashed out ideas for responding to Sputnik. Perhaps the administration should emphasize “spectacular achievements” in science, like cancer research? Or the successful launch of a missile that could travel thirty-five hundred miles? Few in the administration seemed to understand what the Soviets had instinctively grasped: the psychological power of a space launch. General Nathan Twining, chairman of the Joint Chiefs of Staff, warned that the United States should not become “hysterical” over Sputnik. Eisenhower saw Sputnik as a political stunt. He also knew something that the public did not know: in addition to the military’s rocket programs, which were public, the United States had been secretly working on the development of spy satellites, which would prove much more important for the strategic balance than a silver ball beeping from the heavens. In the weeks following Sputnik, the administration’s policy was simply to downplay Sputnik’s importance. General Curtis LeMay called it “just a hunk of iron,” and Sherman Adams, Eisenhower’s chief of staff, derided concerns over a space race as “a celestial basketball game.” The more that the administration tried to dismiss the Soviet accomplishment, the more fodder it gave for political opponents to accuse Eisenhower of allowing the United States to fall behind the Soviet Union. For Lyndon Johnson, the Democratic Senate leader, Sputnik was an opportunity to be fully exploited. In his memoir, Johnson wrote that he got the news of Sputnik while hosting a barbecue at his ranch in Texas. That evening, he walked out with his wife, Lady Bird, to look for the orbiting Soviet satellite. “In the West, you learn to live with the Open Sky,” he later wrote. “It is part of your life. But now, somehow, in some new way, the sky seemed alien.” When Johnson looked up in the night sky, what he saw was not Sputnik but a heavenly political gift that would allow him to hammer the Republicans in the months, and possibly years, ahead. “Soon, they will be dropping bombs on us from space like kids dropping rocks onto cars from freeway overpasses,” Johnson proclaimed. Eisenhower, who had so deftly managed his image as a political leader, found himself stumbling. From a technical standpoint, he was more right than wrong. Though the Soviets were somewhat ahead of the United States in booster technology, the United States had a number of strategic advantages that were not known to the public. In addition to the spy satellite technology being developed, the CIA the year before had begun flying a reconnaissance aircraft in the earth’s stratosphere. By flying at seventy thousand feet, the Lockheed U-2 spy aircraft was designed to evade detection by ground radar while flying over the Soviet Union and capturing pictures of military bases. The aircraft—and the flights—were top secret. Also secret was that the U-2 flights had already proved that the “bomber gap”—a suspected Soviet advantage in bombers—did not exist. With news of Sputnik, Eisenhower worried about a perceived “missile gap.”
Eisenhower refused to be swept up in mass hysteria, however. “Now, so far as the satellite itself is concerned, that does not raise my apprehensions, not one iota,” he told a throng of reporters, just days after the Soviet launch. The administration only helped its critics by providing confusing and contradictory statements about the importance of Sputnik. In that initial press conference, Eisenhower claimed that the “Russians captured all of the German scientists in Peenemunde.” In truth, the United States through Operation Paperclip had taken the cream of the crop, but the Germans in the United States were stuck filling the fourth stage of their Jupiter-C with sand. As the weeks passed, the staid articles about Sputnik gave way to sensational coverage. Drew Pearson, the American writer known for his influential Washington Merry-Go-Round column, claimed that “technical intelligence experts” were predicting that the Soviets might try a moon launch on November 7, to commemorate the anniversary of the Bolshevik revolution. “The same missile that launched the 184-pound Sputnik, our experts say, also could shoot a small rocket 239,000 miles to the moon,” Pearson wrote. “The Russians might fill the nose cone with red dye and literally splatter a Red Star on the face of the Moon.”
Pearson’s moon prediction was an outrageous conflation of conjecture and exaggeration, but on November 3, just a month after Sputnik, the Soviets indeed launched a second, larger satellite. Sputnik 2 carried a dog named Laika on a one-way mission to space. It was taken as purported proof that the Soviets would soon be able to launch a man in space (though unlike with Laika the dog, sending a human into space would require the ability to bring the person back safely to earth). The launch sparked panic in the United States and worldwide protests from animal lovers.
Sputnik tapped into a narrative that artfully wove Hollywood, science fiction, and good oldfashioned fearmongering. The public understood that satellites were somehow connected to the ability to launch ICBMs, but the subtleties of terms like “throw weight,” or the payload a ballistic missile could carry, were not readily apparent. It took some time, politics, and editorializing, but within a few weeks the American public’s initial curiosity and mild apprehension over Sputnik turned to full-blown panic. Eisenhower was right about the science, but he had misjudged the national mood. The administration’s response to Sputnik was a mess, but one thing was clear: the solution was going to be formulated by a soap maker from Cincinnati.

McElroy arrived in Washington just in time for peak Sputnik hysteria. The new defense secretary’s first few weeks at the Pentagon were marked by an endless parade of military chiefs and presidential advisers, all making suggestions about who should be in charge of space. The air force, not surprisingly, wanted to be in charge of a nascent aerospace force. The navy, which was stumbling with Vanguard, argued incomprehensibly that space was an extension of the oceans. And the army wanted to conquer the moon. Another proposal envisioned creating a tri-service organization. None of the suggestions made a particularly convincing case for ownership or offered a solution to the mismanagement that had led to the current crisis.
One meeting in particular appears to have resonated with McElroy shortly after he arrived at the Pentagon. Ernest Lawrence, the famed nuclear physicist, along with Charles Thomas, a former Manhattan Project scientist and the head of the agribusiness company Monsanto, visited the Pentagon chief and over the course of a meeting that lasted several hours proposed that the secretary establish a central research and development agency with responsibility for all space research. It was a concept that drew on the legacy of the Manhattan Project, the World War II– era government project to build the atomic bomb.
McElroy latched onto the idea, likely because it sounded a lot like the “upstream research” laboratory he had established at Procter & Gamble. Whether the visitors’ suggestion sparked the idea—or merely reinforced a thought he already had—is impossible to know. But on November 7, McElroy wrote to his chief counsel to find out if, as defense secretary, he had the authority to set up a research and development agency without seeking new legislative authorities. The answer from counsel was yes, although it was not clear Congress would agree. By the time McElroy showed up on November 20 on Capitol Hill, his idea had a name, and it was called the Defense Special Projects Agency, a space agency that would make sense of the various rocket programs and other space technology ideas. The new agency would consolidate the Pentagon’s missile defense technology and space programs while also pursuing, as the defense chief put it, the “vast weapon systems of the future.” Many of the members of the President’s Science Advisory Committee were not enthusiastic about this proposal. Fearful of military pressure to hasten an arms race, Eisenhower had purposely selected the panel to represent the interests of the scientific community over military advisers. The scientists on the committee were not necessarily against the Pentagon’s consolidating its rocket programs, though they wondered whether it made sense to place ballistic missile defense and space programs all in one agency. As one committee member put it, missile defense was an urgent priority, while there was “no urgency on Mars.”
More fundamentally, the science advisers were concerned about placing the space agency under military control. They eventually acquiesced, likely because James Killian, the president’s newly appointed science adviser, supported it. The panel did convince the president that a civilian agency, not a Pentagon agency, should ultimately be responsible for nonmilitary space programs. Eisenhower, in his approval of the new organization, made clear that “when and if a civilian space agency is created, these [space] projects will be subject to review to determine which would be under the cognizance of the Department of Defense and which under the cognizance of the new agency.”
The reception within the corridors of the Pentagon to the Defense Special Projects Agency was ice cold. The military services viewed it as an attempt to usurp their authority and steal their money. The new agency was a threat to their turf, and their budgets, and they quickly went on a public offensive to undermine support for the proposal. The air force general Schriever told Congress the new agency would be a “very great mistake.” If the military wanted to prove that it did not need a centralized agency for rocket programs, its best bet was to prove that it could launch a satellite into space on its own. To that end, in December, all eyes were on Vanguard, the navy satellite that Wernher von Braun had warned McElroy was doomed to failure.

On December 5, 1957, in the midst of Washington battles over the creation of a new research agency, hundreds of reporters and curious onlookers gathered at Cape Canaveral, Florida, to watch the launch of Vanguard. When Sputnik launched in October, John Hagen, the director of the Vanguard program, admitted the navy rocket was five months behind schedule but blamed the Soviet head start on “unethical conduct,” as if a surprise satellite launch were the equivalent of cheating at a tennis game. Now, after hurried preparations, Vanguard Test Vehicle No. 3 was ready for launch. Yet the day of the scheduled launch, technical problems kept pushing back the countdown, and America’s best hope for catching up with the Soviets became the butt of jokes. The Japanese newsmen called the rocket “Sputternik,” the Germans dubbed it “Spaetnik” (a play on the German word for “late”), and the jaded news crews from Washington, D.C., christened it “civil servant,” because it “won’t work and you can’t fire it.” Finally, the next day, December 6, the countdown to launch began. As the count reached zero, Vanguard lifted off. From beaches just two or three miles from the launch site, hundreds of eager people gathered to watch and cheered as shooting flames marked the liftoff, though giant plumes of smoke obscured their view. The few dozen or so official viewers gathered at a hangar not far from the launchpad could see exactly what unfolded: they watched as the navy’s rocket lifted a few feet up and then exploded in a massive fireball, toppling over into the sand. In a sad testament to the failed launch, the satellite itself was thrown out of the third stage of the rocket during the explosion and was found not far away, still emitting the beeping signal that was supposed to mark the United States’ first foray into space.
The day of the Vanguard disaster, the chairman of the Joint Chiefs of Staff issued a rare note of “non-concurrence” to the establishment of McElroy’s proposed research agency—a bureaucratic expression of extreme disagreement. Had Vanguard not just gone up in a literal ball of flames, he might have had a stronger argument. The new defense secretary held firm, and the next month Eisenhower formally approved the creation of the new agency. McElroy agreed to just one small change to his proposal: to avoid confusion with other, similarly named endeavors, like the Office of Special Operations, the new division would be called the Advanced Research Projects Agency, or ARPA.
ARPA was still an idea more than an organization, and not everyone in Washington was optimistic that a new government bureaucracy would be the solution. The frenetic days leading up to the new agency’s opening its doors were a mix of highs and lows in the space race. On January 31, 1958, the von Braun team, which had finally been allowed to join the space race, successfully helped launch Explorer 1, based on its Jupiter-C, putting in orbit the first American satellite. That success was quickly overshadowed by the second attempted launch on February 5 of the navy’s Vanguard, which broke apart just shy of a minute after launch.
On February 7, ARPA was officially founded with an intentionally vague two-page directive, which established it as an independent agency that reported directly to the secretary of defense. The directive mentioned no projects, or even specific research areas, not even space. “The Agency is authorized to direct such research and development projects being performed within the Department of Defense as the Secretary of Defense may designate,” the directive read. The only hint as to the ultimate purpose for this new agency came just weeks earlier during President Eisenhower’s State of the Union address: “We must be forward looking in our research and development to anticipate the unimagined weapons of the future.”

#RocketScience #ARPA #DARPA #USA #ColdWar #history #Mcelroy



Ragazza

nel silenzio la tristezza che hai.


Mi parli

la voce dolce come non mai.


Ricordi

quei tuoi ripensamenti


Vorresti sentirti più sicura di te.

Eppure

ti guardi intorno
e adesso lo sai


che la vita è dura

tu sfidarla dovrai.


Credevi che ogni sogno fosse gratis

invece il mondo è ben diverso da un film!


Lo sai

e ogni tanto guardi il cielo
sereno
— che grande sensazione ti dà —



Il mondo, certe volte, a te fa così
Ti chiede se mai un giorno ce la farai

a rendere queste nostre vite così:
stupende, come le montagne laggiù.




"Trump accusa l'Europa, 'ha fallito in Ucraina'" (che poi è pure vero), zelensky è un dittatore... le ultime affermazioni di trump. non sembrano quelle di un bambino frustrato? possibile che la politica americana sia regredita a questo modo? nel silenzio "assordante" di chi dovrebbe vigilare: gli elettori.
in reply to simona

Lo sappiamo bene anche noi che gli elettori sono lo specchio di chi ci governa, e non mi stupisce.
Purtroppo non più



Grazie Francesco Sblendorio


L'amico Francesco Sblendorio oggi mi ha risolto un problema che avevo sul mio sito web.
Lo ringrazio pubblicamente e rimando alla sua pagina.
Si occupa di "retrogaming" , insomma vecchi computer e sistemi operativi vintage (credo), ed è una roba da geek abilissimi.
Questa è la sua pagina, sostenetelo.
patreon.com/FrancescoSblendori…


Idriss Qibaa, a “professional when it comes to the banning and unbanning of Instagram accounts" who ran “Unlocked 4 Life,” claimed he made more than $600,000 a month.#Instagram



📌 In occasione dei duecento anni dall’invenzione del Braille il #MIM organizza un’esposizione straordinaria in collaborazione con l’Unione italiana dei ciechi e degli ipovedenti che integrerà la mostra permanente di volumi già presente presso la Bib…
#MIM


Fuck EU


Tutti a lamentarsi di Donald Trump e di quello che dice dell'Europa. Ma ce la ricordiamo Victoria Nuland a Kiev quando disse "F*ck EU!"?
Il pensiero degli USA sull'Europa arriva da lontano, ma Trump quantomeno lo dice apertamente in pubblico, Non di nascosto, che poi lo si deve venire a sapere con un'intercettazione telefonica...