@knud@mastodon.social
@knud@mastodon.social avatar

knud

@knud@mastodon.social

Astronomer, #ESAEuclid developer, cares enthusiastically about #space, #urbanism, #climatechange, and #HumanPoweredVehicles

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jon, to random
@jon@gruene.social avatar

🚧 Construction works happen 🚧

So today my ICE is diverted between Frankfurt and Fulda

Yes the trip is longer, but it’s timetabled in, and it’s communicated well ✅

Green: the route I think we’ll take

Map of rail lines east of Frankfurt. A green stripe indicates the likely route to Fulda.

knud,
@knud@mastodon.social avatar

@jon

Except that DB Netz doesn't seem to know what they are building even a few months in advance. We've had 4 (!) cancellations on that route for a trip in 2 weeks time. "Go, find yourself an alternative" - very funny when you're trying to travel with your bikes.

knud,
@knud@mastodon.social avatar

@jon

I don't like comparisons to worse things somewhere else. If a thing (here: plannability of trips) is not guaranteed, then that means of transport stops existing.

I now know 2 people who had sold their cars and said they will get a car again because their daily local train commutes stopped being plannable. It's almost the same with bike transport by DB. And - but whom am I telling this - cross-border rail is only for experts at this point.

AkaSci, to random
@AkaSci@fosstodon.org avatar

Incoming! A severe G4 Geomagnetic Storm is expected to arrive around 02:00 UTC Friday night / Saturday morning.

At least 5 Coronal Mass Ejections took place over the past 24 hours, directed towards Earth. These originated from a large and magnetically complex sunspot cluster (NOAA region 3664).

There is potential for disruption of communications, the electric power grid, navigation, radio and satellite operations.

And bright auroras as far south as Alabama!

https://www.swpc.noaa.gov/
1/n

knud,
@knud@mastodon.social avatar

@AkaSci

Just not dark yet

vicgrinberg, (edited ) to random
@vicgrinberg@mastodon.social avatar

Wanted to try the too good to go from the Polish place for ages. Very fun (one of the donuts is missing, I ate it on the way)! There is definitely some truly weird stuff in here, not sure what to do with the fish in the glass 😳

knud,
@knud@mastodon.social avatar

@vicgrinberg @benknispel

It's a pickled (=preserved) Brathering, you can obviously also get that fresh. But only close to the coast.

I do like the pickled version once in a while.

knud, to random German
@knud@mastodon.social avatar

If 30ml of ink printer ink cost 15€, why does this 20 cubic meter truck not have a police escort?

vicgrinberg, (edited ) to random
@vicgrinberg@mastodon.social avatar

Today I'll be introducing X-ray astronomy (in German!) to a bunch of medical doctors at the RöKo (Röntgenkongress https://www.roentgenkongress.de/roeko-wiesbaden/) Wiesbaden as an invited highlight talk. Kinda a fun audience and very different from a normal one 😳

knud,
@knud@mastodon.social avatar

@leo @vicgrinberg

Ich kann Dir sagen, dass man mit kosmischen Röntgenstrahlen zumindest die Struktur eines Satelliten abbilden kann, wenn man Löcher im Schutzschild lässt. Z.B. die Kabel und Stecker der Solarzellen.

vicgrinberg, to random
@vicgrinberg@mastodon.social avatar

I am trying to re-create an old talk from ~4 years ago I found in my archives and I simultaneously love past-me (she did such a great job developing a talk structure, much better than the one I had in mind when asked to give a talk on this topic a month ago!) and hate her (she somehow managed to deleted the keynote of the talk so that I am now stuck with a PDF and trying to find all figures & re-type the text ...).

knud,
@knud@mastodon.social avatar

@vicgrinberg

Can you convert PDF to Keynote with some tool? Or is that so ... limited that re-creating it from scratch is easier?

knud,
@knud@mastodon.social avatar

@vicgrinberg

Then happy "creating". I was amazed which level of detail is actually preserved in a PDF unless the exported resolution was substantially reduced. Full pictures even underneath masks, etc.

But if you have most of the original pix then it's definitely easier.

knud, to random
@knud@mastodon.social avatar

I finally put an animated observation from 2018 onto , where I observed the Moon one evening and then again the next morning. With a ~7000km baseline due to the Earth having rotated with me on it, the Moon appears under an angle differing by ~0.5°. That is "diurnal libration":

(animated gifs not supported here, so a link only)

https://commons.wikimedia.org/wiki/File:Diurnal_libration_of_the_Moon_(animated).gif

1/2

vicgrinberg, to random
@vicgrinberg@mastodon.social avatar

That's what I will be seeing for the next three hours.

#AboutToday

knud,
@knud@mastodon.social avatar

@vicgrinberg

Is that how actual streaming studios look like?

knud,
@knud@mastodon.social avatar

@vicgrinberg

I was already googling "pro streaming cam" and "LED light panel"...

knud,
@knud@mastodon.social avatar

@vicgrinberg

Yep, I have that impression from some streamers, there are so many people behind the scenes...

This was my "studio" for a talkshow/talk with @hausderastronomie - while I was traveling. The backdrop was locally printed and stitched together with sellotape. :-)

knud,
@knud@mastodon.social avatar

@vicgrinberg @hausderastronomie

I bought that during March 2020... I also have a greenscreen. I could use a better camera and some extra light panels.

I contemplated if we shouldn't have a Euclid "monthly update" or so.

amoroso, (edited ) to space
@amoroso@fosstodon.org avatar

These unofficial Mastodon accounts of space agencies are bots that merely share news items the agencies publish elsewhere, yet the accounts have quite a lot of followers:

  • NASA: @nasa 71K followers
  • ESA: @esa 1.4K followers

There's an unfulfilled demand for public institutions to communicate on open and independent platforms.

knud,
@knud@mastodon.social avatar

@amoroso @nasa @esa

I have to talk to ESA again about this. We asked about a move or at least starting activities in the Fediverse, but they didn't have any final discussions on this yet.

markmccaughrean, to heidelberg
@markmccaughrean@mastodon.social avatar

If you know, you know 🍺

🏰🇩🇪
📷

knud,
@knud@mastodon.social avatar

@markmccaughrean

Ha, welcome! Too bad I'm not in town. Are you there for ... festivities later in the week?

knud,
@knud@mastodon.social avatar

@hfalcke @markmccaughrean

Like Henk Hoekstra said Tuesday: "Of course we don't celebrate 1 May in the Netherlands, we were the ones that invented capitalism!"

vicgrinberg, (edited ) to random
@vicgrinberg@mastodon.social avatar

How far did astronomers travel world-wide for conferences in 2019 in total? More than 300 times to the Moon & back! Or, to put it in astronomical units: more than 1.5 AU, so to the Sun and halfway back!

▶️ https://doi.org/10.1093/pnasnexus/pgae143

A 🧵 summarizing our paper "Astronomy’s climate emissions: Global travel to scientific meetings in 2019" - published today, lead by Andrea Gokus (who also wrote the draft for this thread) and @knud, with many people, among them @leo & me, contributing:

1/6

knud,
@knud@mastodon.social avatar

@vicgrinberg @skyglowberlin

👋🏽

knud,
@knud@mastodon.social avatar

@vicgrinberg @skyglowberlin

I'm likely at ESTEC again on 15+16 July, just checked my calendar exactly for that 🙂

knud,
@knud@mastodon.social avatar

@vicgrinberg @skyglowberlin

Of course 😆

PieterPeach, to H5N1
@PieterPeach@mastodon.social avatar

“The cats were found dead with no apparent signs of injury and were from a resident population of ≈24 domestic cats that had been fed [unpasteurised] milk from sick cows. Clinical disease in cows on that farm was first noted on March 16; the cats became sick on March 17, and several cats died in a cluster during March 19–20. In total, >50% of the cats at that dairy became ill and died.”

Emerg Infect Dis. 2024 Jul https://wwwnc.cdc.gov/eid/article/30/7/24-0508_article?ACSTrackingID=USCDC_333-DM127233&ACSTrackingLabel=Latest%20Expedited%20Articles%20-%20Emerging%20Infectious%20Diseases%20Journal%20-%20April%2029%2C%202024&deliveryName=USCDC_333-DM127233

knud,
@knud@mastodon.social avatar

@Fischblog

ErikUden, to random German
@ErikUden@mastodon.de avatar

Erinnern wir uns an die Proteste gegen den AfD Landesparteitag am 20.04. (!!!) in Niedersachsen in Unterlüß:

  • Drei Züge in Richtung Unterlüß wurden aus „technsichen Gründen“ gestoppt oder verspätet.
  • Ein Zug wurde angehalten, die Polizei hat alle zur Demo anreisenden durchsucht.
  • Menschen die bei der Demo auf dem Boden saßen um zu frühstücken wurden zufälligerweise ausgesucht und von der Polizei geboxt.
  • Es kam die Anweisung an die Polizei kein Pfefferspray oder Sonstiges zu benutzen sondern sofort den Schmerzgriff und Prügelei anzuwenden.

...und es hat sich trotzdem gelohnt weil die AfD den ganzen Tag unterbrochen wurde und nicht friedlich ihren Unsinn durchführen konnten.

Jede Person die in Unterlüß dabei war weiß wie sehr der Staatsapparat jetzt schon den Faschismus stützt. 20% der Menschen im Land wählen die AfD, die Polizei ist generell mehr rechts, die dortige Verteilung mag also schlimmer sein!

Fazit: zum AfD Bundesparteitag in Essen (28. - 30. Juni 2024) wird ausschließlich mit Bussen angereist! 🚌

knud,
@knud@mastodon.social avatar

@ErikUden

Traktoren?

sundogplanets, to random
@sundogplanets@mastodon.social avatar

My university email is switching to Outlook in like 3 days. I'm looking forward to not getting any work emails for a few days while I try to get microsoft to play nice with my linux research laptop...

knud,
@knud@mastodon.social avatar

@sundogplanets

University IT systems hacked in 3, 2, 1...

elizabethtasker, to vr
@elizabethtasker@mastodon.online avatar

This week, we're hitting the shop floor for a big design that (I hope) will ultimately become a space for a conference.

So far... it's a doughnut.

Is this to remind attendees that they better getting running around this track to burn off eating too many pastries? We shall see...

knud,
@knud@mastodon.social avatar

@elizabethtasker

Pleeeease keep us posted about the final product, the path to get there and the user experience during the meeting.

We have a paper coming out tomorrow (in PNAS Nexus) on the CO2 emissions of all astronomy conferences in 2019. They're immense and not sustainable in the future and as a depedency for communication of the field.

knud,
@knud@mastodon.social avatar

@elizabethtasker

I will and yes. This started as a small product in A4E and took very long to get all data (and equally long to get it into a journal). We assessed all astro conferences and schools globally (~300 with specific data, the remaining ~60 with extrapolation).

jon, to random
@jon@gruene.social avatar

Trying to help a friend get from Madrid to Paris 8 June. And I want to 😭

€122 for the best timed TGV train to Paris €97 is the cheapest
Cheapest flights from €43
Other flights €54 - €74

knud,
@knud@mastodon.social avatar

@jon @smveerman

I've had it twice last year that the only (!) connection from Barcelona that still let's me travel onward to Germany was sold out. In both classes. Sucked big time. It all depends on too few seats on a single train.

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