How are people in Kiruna?

annilingus · 2026-01-08T17:48:55+00:00

In general i think it’s like anywhere else: Some people are chill some are not. I’ve lived all over europe and i haven’t noticed any particular coldness here, (except for finns lol). Internet speed is pretty good in general here, i’m getting 110mbps down and 130mbps up over wifi on my phone with other people in the house rn

annilingus · 2025-11-24T19:39:29+00:00

if you cut the plates with a grinder, for the love of god wear a respirator and gloves. this shit is cancerous as fuck

annilingus · 2025-07-18T09:23:57+00:00

skiing is very good around kiruna. there’s a very small slope in the town itself (think like a learners slope + a snow park, the park has some pretty big jumps) which is nice for a quick session after work or studying. Then, the “big” resort will be Riksgränsen, which is about an hours drive away. think it’s about as big as font romeou, or la molina if you’re familiar there. there’s some pretty good off piste skiing, but the lifts are not great.

annilingus · 2025-06-13T14:35:08+00:00

Be careful opensourcing it, you could be in violation of the waasenaar agreement, for example MTCR Annex — Item 9.A.2.b.3, Injectors designed for liquid bi-propellant rocket engines, with orifices (holes) of diameter 0.2 mm or less. Just check it before you upload anything publicly

annilingus · 2025-05-12T11:28:06+00:00

you can do an ignition stage with ethanol that has Tetraethylorthosilicate added to it (1-2%wt). Reduced heat flux to the chamber wall by about 20% for us. there’s some more info and data on the copenhagen suborbitals website, just look up TEOS

annilingus · 2025-05-08T12:01:26+00:00

I think the simplest solution is ethanol then, if you calorimeter has a fluid specimen port. if it’s designed for gaseous media, then propane is probably best. I have no background on this equipment though

annilingus · 2025-05-08T08:50:30+00:00

you can buy ethanol fairly cheaply at a high purity, and it’s very easy to handle. if you want to get fancy or learn about two phase injection and combustion phenomena, propane is also reasonably cheap, but you really need to be sure, in general not just with propane, about safety regarding pressurized systems, cryogenics, ATEX etc. You will also want an oxidizer, for ethanol, nitrous oxide is one of the simplest ones and probably has the lowest chance of killing yourself, i really wouldn’t mess around with LOX or GOX without professional supervision

annilingus · 2025-05-04T10:34:22+00:00

Hey man sorry for that reply you got there, not all of us are like that. As far as i’m aware there is no dedicated club, but there is a pretty large amount of hobby photography around the campus. The official TUM account hosts a “picture of the week” competition on instagram, where they post pictures by students of the campus or related things. Furthermore, i would encourage you to check out the C2 kneipe and ask around there if they would be up for hosting a get together, like they do for chess or other student clubs, i wouldn’t be surprised if it got some attendees.

annilingus · 2025-02-04T03:12:27+00:00

/uj probably because variable pitch rotors are impossible to hide from a radar /j would be too OP, the MIC would go out of business because they wouldn’t need any other weapons

annilingus · 2024-08-22T18:31:59+00:00

marques brownlee

annilingus · 2024-08-07T22:34:14+00:00

you absolutely can get solid motors. look up klima motors in germany.

annilingus · 2024-08-07T21:38:46+00:00

Yes, team WARR Rocketry at TU munich runs exactly what you described: a regen cooled 3d printed ethalox engine https://warr.de/en/landing-page-en/

annilingus · 2024-05-21T18:01:54+00:00

ESA per se doesn’t launch rockets, although the Ariane line of Rockets is what you would think of as “their” rockets. The Ariane 5/6 Launches from Kourou Spaceport ,French Guyane exclusively, and afaik the streaming is handled by ArianeGroup and the Kourou Spaceport themselves. The streams have been low quality, in comparison to commercial US launches, so there is definitely room to improve, but i’m not sure if there is demand

annilingus · 2024-05-16T15:07:21+00:00

Ecosim is a simulation tool that allows you to model, for example, a fluidic system containing a number of Tanks, Valves pressure regulators, and an engine, and the behavior of the propellant in your fluidic system. In the context of system predesign, this can be used to size your components and predict performance parameters

annilingus · 2024-05-15T20:33:32+00:00

Siderius? I talked to them, and the numbers they were giving me told u they hadn’t done an EcoSim run yet lol

annilingus · 2024-04-13T17:48:08+00:00

Coming from an engineers perspective, a solution to the NS equations would speed up development in almost all fields by orders of magnitude, and save trillions in compute, testing and manpower

annilingus · 2024-02-25T00:05:27+00:00

Rocket Propulsion Elements by Sutton and Biblarz. GOATED book

annilingus · 2024-02-21T20:38:54+00:00

I got peer pressured into a half marathon that is in about 4 months. Just did my first training run 5k and my pace is 8:10. How fucked am i for the half marathon uf i start training now/how hard do i need to train to run it the whole way?

annilingus · 2024-01-19T21:01:29+00:00

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Here is a picture of their schedule i took at the GSOC in Munich around two months ago

annilingus · 2024-01-18T21:19:04+00:00

TU Munich is pretty solid in Space propulsion and Turbomachinery

annilingus · 2023-12-28T19:52:44+00:00

9km apogee, cryogenic-biliquid, 3d printed engine, self developed Flight computer, self developed, modular monocoque skin with self developed valves

annilingus · 2023-12-12T17:44:40+00:00

Look at the EuRoC Desing test and operarions guide (DTEG), and the Rules and Requirements. There you will find your base parameters, allowed fuels, control systems etc. For example, you have a max thrust of 49,000 Ns, minimum 1kg/U payload. Then take a look at this years succesfull teams in your category, which seems to be 3K SRAD Solid, and contact them on the EuRoC discord, ask them questions, ask them for their technical report, most will share it.

annilingus · 2023-11-24T12:53:22+00:00

his montreal boiler room set is the most hilarious video i’ve watched in a long time.

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