Security Theater Looks The Same Every Time
https://fed.brid.gy/r/https://defector.com/security-theater-looks-the-same-every-time
Security Theater Looks The Same Every Time
https://fed.brid.gy/r/https://defector.com/security-theater-looks-the-same-every-time
Z CO₂ chcą zrobić coś znacznie cenniejszego niż paliwo
Osiągnięcie globalnej neutralności klimatycznej do 2050 roku to plan ambitny, ale według wielu ekspertów – niewystarczający. Aby realnie ratować klimat, musimy wejść w fazę emisji ujemnych, czyli zacząć fizycznie usuwać dwutlenek węgla z atmosfery.
Problem w tym, że proces ten zawsze był niezwykle energochłonny i trudny do wdrożenia na wielką skalę. Zespół badaczy z Columbia University i Brookhaven National Laboratory pokazał właśnie sposób, jak zamienić ten gaz w niezwykle cenny materiał, zamykając go pod postacią nanowłókien węglowych.
Pułapka paliw syntetycznych
Do tej pory najpopularniejszym pomysłem na zagospodarowanie wyłapanego CO₂ była jego konwersja na paliwa lub chemikalia. Z naukowego punktu widzenia to jednak pułapka – wyprodukowane w ten sposób paliwo w końcu zostanie spalone, a uwięziony w nim dwutlenek węgla błyskawicznie wróci do atmosfery.
Profesor Jingguang Chen i jego zespół postanowili podejść do problemu inaczej. Zamiast zamykać obieg, postanowili zmienić gaz w ciało stałe, a nie paliwo. Nanowłókna węglowe to niezwykle wytrzymały i doskonale przewodzący materiał, na który istnieje gigantyczne zapotrzebowanie w branży elektronicznej, a nawet w budownictwie (jako zbrojenie nowoczesnego betonu). Uwięziony w nich węgiel zostaje bezpiecznie zablokowany na długi czas.
Inżynieryjny hack. Jak oszukać termodynamikę?
Bezpośrednia zamiana CO₂ w stały węgiel jest z punktu widzenia termodynamiki procesem skrajnie trudnym i wymagającym absurdalnych ilości energii. Badacze obeszli ten problem, dzieląc proces na dwie sprytne ścieżki:
Efekt? Otrzymany materiał to nie są bezużyteczne węglowe odpady. To wysoce krystaliczne struktury o czystości rzędu 97%, co odpowiada dzisiejszym, rygorystycznym standardom komercyjnym dla branży elektronicznej.
Ostatnia przeszkoda przed przemysłem
Zanim jednak ten dwuetapowy proces opuści mury laboratoriów i trafi do fabryk, naukowcy muszą rozwiązać jeszcze jeden istotny problem inżynieryjny: odzysk katalizatora. Cząsteczki stopu żelaza i kobaltu lubią przyklejać się do rosnących nanowłókien. Efektywne i tanie oddzielanie tych metali bez niszczenia samej struktury węgla to obecnie główny cel zespołu badawczego.
Jeśli ten proces uda się zoptymalizować na dużą skalę, a do jego zasilenia użyjemy energii ze źródeł odnawialnych, zyskamy jedno z najciekawszych narzędzi do trwałego usuwania CO₂. Przestaniemy traktować dwutlenek węgla wyłącznie jako groźny odpad, a zaczniemy patrzeć na niego jak na potencjalne źródło cennego surowca do budowy nowoczesnej infrastruktury.
NASA trenuje powrót na Księżyc w makiecie Blue Origin
#chemia #ColumbiaUniversity #emisjeUjemne #innowacje #materiałyPrzyszłości #nanowłóknaWęglowe #ochronaKlimatu #środowisko #usuwanieCO2Ars Technica: My SSN was exposed in a breach at Columbia—a school I have no connection with. “A weird text from my dad in February sent me on a months-long quest to solve a mystery that has been troubling an odd group of victims from a Columbia University data breach last year. That group? People with absolutely no connection to the school. The text included a photo of a letter from Columbia, […]
https://rbfirehose.com/2026/06/07/ars-technica-my-ssn-was-exposed-in-a-breach-at-columbia-a-school-i-have-no-connection-with/
Ars Technica: My SSN was exposed in a breach at Columbia—a school I have no connection with. “A weird text from my dad in February sent me on a months-long quest to solve a mystery that has b…
Scientists test 3 popular bottled waters for nanoplastics using new tech, and yikes
Columbia University: Fortress or FEARLESS
https://fed.brid.gy/r/https://www.pressenza.com/2026/06/columbia-university-fortress-or-fearless/
My #SSN was exposed in a #breach at Columbia—a school I have no connection with
A weird text from my dad in February sent me on a months-long quest to solve a mystery that has been troubling an odd group of victims from a #ColumbiaUniversity data breach last year. That group? People with absolutely no connection to the school.
The text included a photo of a letter from #Columbia , informing me that I was a victim of a data breach last June, one that exposed a wide range of sensitive information, including 1.8 million #SocialSecurity numbers.
#privacy #security
An old Columbia University protocol of using SSN as identifiers exposed SSN of people who never even associated with Columbia.
“My SSN was exposed in a breach at Columbia—a school I have no connection with”
https://arstechnica.com/tech-policy/2026/06/my-ssn-was-exposed-in-a-breach-at-columbia-a-school-i-have-no-connection-with/
“A free press can, of course, be both good and bad; but, most certainly, without freedom, the press will never be anything but bad”*…
The Fourth Estate is, of course, hugely influential in civic and political life; a free press is essential to the healthy functioning of a democracy, in the U.S. and around the world— more generally to effective self-determination in any society. So the latest World Press Freedom Index from Reporters Without Borders (RSF) is concerning. Indeed, the global state of press freedom has reached a 25-year low.
RSF has been compiling the Index since 2002; as of this year:
• Less than 1% of the global population lives in a country rated as having “good” press freedom.
• More than half of countries and territories now fall into the “difficult” or “very serious” categories, up from 13.7% in 2002.
• The U.S. ranks 64th globally in 2026, down from 17th when the index began.
The index ranks 180 countries and territories based on five indicators: political context, legal framework, economic context, sociocultural context, and journalist safety.
This world map shows press freedom scores around the world in 2026, revealing a widening divide between Europe, the only region with countries rated “good,” and much of the rest of the world.
More on what’s happening and why: “Mapped: Press Freedom Around the World in 2026,” from @voronoiapp.bsky.social (and, of course, much more in the RSF Index)
(Image above: source)
* Albert Camus
###
As we challenge censorship (and oligopolistic control), we might recall that it was on this date in 1917 that the first Pulitzer Prizes were awarded. In his will, Joseph Pultizer specified solely four awards for excellence in journalism, four in books and drama, one for education, and five traveling scholarships.
In journalism, prizes were to recognize “the most disinterested and meritorious public service rendered by any American newspaper during the preceding year” (a gold medal worth $500 with no monetary component); “the best editorial article written during the year, the test of excellence being clearness of style, moral purpose, sound reasoning, and power to influence public opinion in the right direction” ($500); and “the best example of a reporter’s work during the year, the test being strict accuracy, terseness, the accomplishment of some public good commanding public attention and respect” ($1,000). (A $1,000 prize for the best history of services rendered to the public by the American press in the preceding year was only awarded once; similarly, a $1,000 prize for a paper on the development of the School of Journalism was never awarded due to a dearth of competitors.)…
… the Pulitzer Prize Board, has increased the number of awards to 23 and introduced poetry, music, photography, memoir and audio journalism as subjects, while adhering to the spirit of the founder’s will and its intent…
– source
The awards were administered/bestowed by Columbia University (the journalism school at which Pulitzer had endowed). Herbert B. Swope received the first Pulitzer for journalism (the only one awarded in that first year of the program) for his series “Inside the German Empire” for the New York World… as it happens, a Pulitzer paper.
The Internet Archive has the book that Swope’s series became)
#ColumbiaUniversity #culture #fourthEstate #freePress #history #JosephPulitzer #journalism #politics #pressFreedom #PulitzerPrize #PulitzerPrizes #societyHe Sued the N.Y.P.D. He Advised ‘Homeland.’ Now He’s Mamdani’s Lawyer.