Sascha Trippe ๐Ÿ›ฐ๏ธ ์‚ฌ์ƒค ํŠธ๋ฆฌํŽ˜'s Avatar

Sascha Trippe ๐Ÿ›ฐ๏ธ ์‚ฌ์ƒค ํŠธ๋ฆฌํŽ˜

@saschatrippe.bsky.social

โญ๏ธ Astronomer โ€“ MSc, PhD, Professor (๊ต์ˆ˜) โญ๏ธ Seoul National University / ์„œ์šธ๋Œ€ํ•™๊ต โญ๏ธ Black holes, AGN, radio astronomy, VLBI โญ๏ธ Born at 332 ppm COโ‚‚ โญ๏ธ Trigger warning: math, physics, irony โญ๏ธ Signature: (+,-,-,-)

1,677 Followers  |  750 Following  |  1,045 Posts  |  Joined: 12.11.2024  |  2.1273

Latest posts by saschatrippe.bsky.social on Bluesky

The western sky shortly after sunset.

The western sky shortly after sunset.

#Sunset #์ถ”์„ #Chuseok

08.10.2025 14:49 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Great reminder that small / medium class missions are affordable for states / provinces / regions / prefectures in principle. ๐Ÿงช๐Ÿ›ฐ๏ธ๐Ÿš€

08.10.2025 07:43 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

The real question should be why those docs were distributed on paper, not as encrypted files through a secured network. I mean, it's 2025 ...

08.10.2025 05:44 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Happy ์ถ”์„ / Chuseok / Harvest Moon Festival! ๐ŸŒ•

07.10.2025 03:36 โ€” ๐Ÿ‘ 3    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

As a happy long-term Linux user it always amazes me how many people seem to be just fine with Microsoft forcing access to their computers.

07.10.2025 01:32 โ€” ๐Ÿ‘ 18    ๐Ÿ” 4    ๐Ÿ’ฌ 5    ๐Ÿ“Œ 0

Indeed, there are lots of Zoom featured many (including me) have never heard of.

What disturbs me most is how few people are aware of / use Zoom's end-to-end encryption. Holding committee meetings discussing money, exams, tenure reviews etc. without basic security is a bold choice.

04.10.2025 03:20 โ€” ๐Ÿ‘ 4    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Gretchenfrage - Wikipedia

Somehow, I remember Gretchen's question slightly differently ๐Ÿ˜ #Goethe

04.10.2025 01:15 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

๐Ÿ˜ณ Now I really want to know about the "compulsory drinking of milk" part.

04.10.2025 01:03 โ€” ๐Ÿ‘ 5    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
Cartoon of the famous "Just call them!!" meme.

Cartoon of the famous "Just call them!!" meme.

Gentle reminder: if you have my phone number / messenger ID and something urgent comes up, just call me (secure VoIP preferred). Sending multiple identical emails per day is not helping. ๐Ÿ“ฑ

03.10.2025 07:23 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

๐Ÿ‡ฉ๐Ÿ‡ช ๐Ÿ‡ฐ๐Ÿ‡ท
๐Ÿค
October 3

#TagDerEinheit
#๊ฐœ์ฒœ์ ˆ

03.10.2025 01:26 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Preview
(LEAD) Gov't document storage system destroyed in fire at state data center | Yonhap News Agency (ATTN: UPDATES throughout; CHANGES headline, lead; ADDS photo, byline)By Chae Yun-hwan ...

Context.

01.10.2025 10:05 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
As the system is not backed up externally, all documents stored on the repository have been lost. Government employees have been advised to save all work-related documents on G Drive since 2018, rather than on their computers.

Government branches that have exclusively used the system to store work documents are expected to experience significant disruptions to operations.

Source:
https://m-en.yna.co.kr/view/AEN20251001003851315?section=national/national

As the system is not backed up externally, all documents stored on the repository have been lost. Government employees have been advised to save all work-related documents on G Drive since 2018, rather than on their computers. Government branches that have exclusively used the system to store work documents are expected to experience significant disruptions to operations. Source: https://m-en.yna.co.kr/view/AEN20251001003851315?section=national/national

Please tell me you are kidding.

01.10.2025 10:04 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
Post image

ESA ๐Ÿค KASA

We have announced with the Korea AeroSpace Administration (KASA) that we will work together on peaceful uses of space, starting with space weather monitoring and sharing space communications facilities.

๐Ÿ”— esa.int/About_Us/Cor...

01.10.2025 09:37 โ€” ๐Ÿ‘ 164    ๐Ÿ” 18    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 6

Was just thinking exactly the same thing โ€“ on 2013 Oct 1, I was at a conference in Santa Fe, New Mexico, and getting worried about my return flights ๐Ÿ™ƒ

01.10.2025 08:57 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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Hybrid working from home improves retention without damaging performance - Nature A trial investigating the effects of a hybrid working schedule in a Chinese technology firm in 2021โ€“2022 shows that working from home two days a week improved job satisfaction, reduced quitting and did not affect performance.

Working from home works for everyone ๐Ÿงช #Zoom

29.09.2025 13:55 โ€” ๐Ÿ‘ 10    ๐Ÿ” 3    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
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Hoogleraar Ewine van Dishoeck benoemd tot Citation Laureate Emeritus-hoogleraar moleculaire astrofysica Ewine van Dishoeck is benoemd tot Citation Laureate door Clarivate, een bedrijf dat onderzoeksdata analyseert. Daarmee beschouwt Clarivate haar als invloedr...

Emeritus-hoogleraar moleculaire astrofysica Ewine van Dishoeck is benoemd tot Citation Laureate door Clarivate, een bedrijf dat onderzoeksdata analyseert. Daarmee beschouwt Clarivate haar als invloedrijke wetenschapper met het kaliber om een Nobelprijs te winnen.

25.09.2025 08:51 โ€” ๐Ÿ‘ 5    ๐Ÿ” 3    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 1
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Data Center Fire Disrupts Services at South Korean Firms Kakao, Naver Three major data center fires in as many years: This time, tragedy strikes data center operations in South Korea.

The writing has been on the wall at least since 2022.

28.09.2025 09:42 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

The most puzzling fact is that โ€“ apparently โ€“ there is no physically separate backup server farm. Such kind of incident was bound to happen.

28.09.2025 09:40 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
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Operations remain halted for 647 government systems after data center fire The operations of 647 government systems remain completely halted, with full recovery expected to take considerable time after a fire at the National Information Resources Service (NIRS) in Daejeonโ€ฆ

The operations of 647 government systems remain completely halted after a fire at the National Information Resources Service in Daejeon on Friday evening, with full recovery expected to take considerable time, officials said Saturday. #korea
buff.ly/FjWtXud

27.09.2025 02:40 โ€” ๐Ÿ‘ 0    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Yes, that sounds like it.

26.09.2025 17:08 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
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The Last Children of Schewenborn - Wikipedia

Cold war West Germans had Gudrun Pausewang's "The last children of Schewenborn". Written for young readers, highly traumatizing, but nevertheless I very much recommend it.

26.09.2025 16:36 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
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"Red Storm Bravo": Bundeswehr trainiert in Hamburg den Spannungsfall Die Bundeswehr beginnt in einer Woche mit ihrer grรถรŸten รœbung in Hamburg seit Ende des Kalten Kriegs. Beteiligt sind rund 500 Soldaten.

Red Storm Bravo Rising.

25.09.2025 06:41 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 1

I am an astronomer and I approve this message ๐Ÿ”ญโ˜€๏ธ

21.09.2025 03:40 โ€” ๐Ÿ‘ 46    ๐Ÿ” 6    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Nice result by Farhad Yusef-Zadeh et al. Although "surprising" is a strong word, given that we have known most of this (flares vs. quiescent state, flares every few hours, orbiting hotspot) for about 20 years.

๐Ÿงช๐Ÿ”ญ #astrosci

21.09.2025 00:45 โ€” ๐Ÿ‘ 35    ๐Ÿ” 3    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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Why Language Models Hallucinate Like students facing hard exam questions, large language models sometimes guess when uncertain, producing plausible yet incorrect statements instead of admitting uncertainty. Such "hallucinations" per...

Original study ๐Ÿงช๐Ÿค–

20.09.2025 20:40 โ€” ๐Ÿ‘ 5    ๐Ÿ” 1    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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OpenAI admits AI hallucinations are mathematically inevitable, not just engineering flaws In a landmark study, OpenAI researchers reveal that large language models will always produce plausible but false outputs, even with perfect data, due to fundamental statistical and computational limi...

"... large language models will always produce hallucinations due to fundamental mathematical constraints that cannot be solved through better engineering ..."

๐Ÿงช๐Ÿค– #AI

20.09.2025 20:39 โ€” ๐Ÿ‘ 55    ๐Ÿ” 23    ๐Ÿ’ฌ 4    ๐Ÿ“Œ 6
Article 5
[Freedom of expression, arts and sciences]

(1) Every person shall have the right freely to express and disseminate his opinions in speech, writing and pictures and to inform himself without hindrance from generally accessible sources. Freedom of the press and freedom of reporting by means of broadcasts and films shall be guaranteed. There shall be no censorship.

(2) These rights shall find their limits in the provisions of general laws, in provisions for the protection of young persons and in the right to personal honour.

(3) Arts and sciences, research and teaching shall be free. The freedom of teaching shall not release any person from allegiance to the constitution.

Article 5 [Freedom of expression, arts and sciences] (1) Every person shall have the right freely to express and disseminate his opinions in speech, writing and pictures and to inform himself without hindrance from generally accessible sources. Freedom of the press and freedom of reporting by means of broadcasts and films shall be guaranteed. There shall be no censorship. (2) These rights shall find their limits in the provisions of general laws, in provisions for the protection of young persons and in the right to personal honour. (3) Arts and sciences, research and teaching shall be free. The freedom of teaching shall not release any person from allegiance to the constitution.

Provisions the authors of the German constitution of 1949 included for reasons. Today: freedom of the arts and the sciences.

18.09.2025 03:56 โ€” ๐Ÿ‘ 2    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
A Maxar satellite image of Mt Fuji. The satellite was only 3 degrees above the horizon at the time, so the capture angle is almost directly side on instead of top down.

A Maxar satellite image of Mt Fuji. The satellite was only 3 degrees above the horizon at the time, so the capture angle is almost directly side on instead of top down.

Just spent some time digging through old Maxar/DigitalGlobe blogs to find a reference image and found this incredible capture of Mt Fuji. Incredible.

The satellite was only three degrees above the horizon when it captured this image.

blog.maxar.com/earth-intell...

15.09.2025 02:19 โ€” ๐Ÿ‘ 233    ๐Ÿ” 74    ๐Ÿ’ฌ 7    ๐Ÿ“Œ 5

Context. โ›ˆ๏ธ

17.09.2025 09:12 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Sunshine breaking through rain clouds, Siheung, South Korea.

Sunshine breaking through rain clouds, Siheung, South Korea.

After the storm. โ›…๏ธ

17.09.2025 09:11 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

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