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marsokod

@ marsokod @lemmy.world

Posts
11
Comments
117
Joined
3 yr. ago

  • Organic Maps migrates to Forgejo due to GitHub account blocked by Microsoft.

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  • You can easily do that with forgejo/gitea. However, you cannot sync these issues, that's a one-off operation.

    You can however totally sync the git repo - either out of the box or using web hooks/git hooks.

  • Isar Aerospace’s first Spectrum launch fails

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  • There is a nice video of the full airborne phase, up to its demise in the water. Luckily the launch pad is not impacted.

    They did reach the 30 seconds of flight announced prior to the launch, so not too bad. It looks like primarily GNC issue, though this could also be originating from a thruster issue.

    https://bsky.app/profile/selshevneren.bsky.social/post/3lllwns5xpc2w

  • Windows 11 is closing a loophole that let you skip making a Microsoft account

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  • You can install Android without any Google account. And install alternative stores. Similarly, you do not need AppleID to install MacOS. I believe this is the same for iOS.

  • Deleted

    Permanently Deleted

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  • Seriously, I tried Gemini for a while but it is mostly useless. It can it open my apps, cannot control Home Assistant, cannot send a message to someone.

  • [Dormant] moved to !space@mander.xyz @lemmy.world
    marsokod @lemmy.world

    Next Gen Starship

    chrisprophet.substack.com /p/next-gen-starship

  • Why are people impressed with SpaceX?

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  • There are a few things that are different from what NASA has done in the past:

    1. SpaceX Rocket is the most powerful rocket ever, surpassing everything that NASA or anyone else has ever done.

    2. they are landing the rockets, with the aim of being able to recover them. If you skip the technicality that SpaceX first stage is suborbital but is part of an orbital launcher, that makes SpaceX the only entity who has achieved that, with some comparison to the Space Shuttle and Buran, though both were losing significant sections of the initial launcher, with very difficult repairs once on the ground.

    3. the cost of the launcher. In terms of capabilities, NASA's SLS is probably close to Starship. However, it costs around $2B/launch, and nothing is recoverable. Starship is meant for low cost. It is estimated that the current hardware + propellant for a single launch is under $100M. With reusability, a cost per launch under $10M is achievable in the mid term (10 years I would say) once the R&D has been paid ($1.4B/year at the moment, I would guess the whole development for Starship will be $10-20B, so same if not less than SLS).

    4. the aim for high speed reusability - SpaceX aim is to launch as much as possible, as fast as possible, with the same hardware. While it is a bit early to understand how successful they will be (Elon was saying a launch every 1hr, which seem to be very optimistic, I would bet 6-12hrs to be more achievable). That was NASA's original goal for the Space Shuttle, and they failed that.

    5. finally, orbital refueling means you have a single vehicle that can basically go anywhere in the inner solar system without much issues, and minimal cost.

    Also, what gets people excited are the prospects of what this enables. A 10-100x decrease in the access to orbit changes completely the space economics and opens a lot of possibilities. This means going to the Moon is a lot simpler because now you don't need to reduce the mass of everything. This makes engineering way easier as you do not need to optimise everything to death, which tends to increase costs exponentially. And as for Mars, Starship is what makes having a meaningful colony there possible. Doing an Apollo like mission on Mars would have been possible for decades, but at a significant price for not much to show for. With cheap launch, you can just keep sending hardware there.

  • [Dormant] moved to !space@mander.xyz @lemmy.world
    marsokod @lemmy.world

    Open Buildings 2.5D Temporal dataset tracks building changes across the Global South

    research.google /blog/open-buildings-25d-temporal-dataset-tracks-building-changes-across-the-global-south/

  • There Are Now More Fully Electric Cars On Norwegian Roads Than Gas Cars

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  • That's electric Vs pure gasoline only. Technically true, and it shows BEV are progressing in terms of share of cars on the road, but this is a very specific milestone that is only useful for click-baiting.

  • Pris de panique, les constructeurs automobiles demandent à l’Europe de différer le durcissement des normes CO₂

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  • Solution numéro 4: intégrer le prix de l'amende aux voitures polluantes ? Ça fera passer une partie des ventes vers de l'électrique et donc évitera l'amende ?

  • Ukraine war latest: Ukraine blows hole in another Russian bridge; Kursk offensive puts 'new constraints' on Putin's war plans

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  • The more it goes, the more there will be pressure on the Russian forces to divert their resources there. It seems to be a relatively cheap way for Ukraine to alter the whole battlefield, fighting where they are stronger.

  • Arm announces an open-source graphics upscaler for mobile phones

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  • Around 20-25% power consumption reduction against native resolution, that's neat.

  • World first UK prototype could pave the way for constant energy all the time - from space | Science & Tech News

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  • To complete that good answer, satellites in GEO will experience eclipses 2x21 days per year (around March and September). The eclipse duration during these periods will vary from 0 to 70minutes and then down to 0 again, with one eclipse per day, around midnight.

    So your solar plant in space will work 100% of the time 320+ days a year, and will have a small down time that can be up to an hour in the middle of the night otherwise. Not perfect but actually very manageable with a little bit of storage on the ground.

    Overall, the main concern with these systems is the total cost, including launch cost. It is hard to tell if it will be competitive with solar + battery on the ground.

  • Do bike tires increase pressure in summer?

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  • To do the math, an assuming constant volume, a 30C increase corresponds to around 10% increase in pressure. That's well within the margins of the tyre even if you go to the max rated.

    If you then consider deformation and most importantly leakage over several weeks, this is a non-issue.

  • Why do people wear shoes inside the house?

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  • I wear slippers inside mostly to protect agains cold floor, coffee tables, and most important of all, Lego bricks on the loose.

    Also another reason to wear shoes inside is when you are constantly going inside and outside. Which means then your floor is dirty.... which means you want to protect your feet from the dirt. That's a vicious cycle but can be one of the reasons.

  • Chickpeas grown in lunar regolith are stressed but reach maturity, shows study

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  • I am not familiar with what is required for hydropony, but I would guess it requires more equipment. Plus growing them on Lunar soil means eventually you get some elements from the Lunar soil itself and do not need to have full recycling otherwise, which means you don't have to have a fully closed cycle for this.

    There is still the issue of the closed cycle for air though (which is where Mars is easier than the Moon for medium term colonies).

  • Chickpeas grown in lunar regolith are stressed but reach maturity, shows study

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  • It is on the Moon, it knows it can die due to decompression at any moment and we completely screw up it's circadian cycle with 30+ days. Of course it will be anxious, no need to prove it.

  • [Dormant] moved to !space@mander.xyz @lemmy.world
    marsokod @lemmy.world

    Chickpeas grown in lunar regolith are stressed but reach maturity, shows study

    phys.org /news/2024-02-chickpeas-grown-lunar-regolith-stressed.html

  • Stricken Japanese Moon mission landed on its nose

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  • Let's see if it wakes up once the sun hits the solar panels. Hopefully the thermal conditions do not kill it by then.

  • Watching others visibly dislike vegetables might make onlookers dislike them, too

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  • I, too, have children at home.

  • NSFW

    WWIII will be fought with sticks and drones.

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  • Removed

    Un homme qui "rend fière la France" - Contre Attaque

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  • En même temps, maintenant tu parles de ça au lieu de parler de la loi. Il a réussi son coup.

  • Removed

    United States weighs hike in tariffs on Chinese EVs

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  • It means that U.S. automakers find it cheaper to have their vehicles made in China and then import them in the U.S., rather than make them directly in the U.S. in the first place.

    This means that manufacturing in China is so cheap that even with the tariffs, it is more cost effective to go there. If your goal with the tariffs is to level the game, then this should not happen (no one would relocate like that unless there is a massive gain).

  • Python @programming.dev
    marsokod @lemmy.world

    It's Time For A Change: datetime.utcnow() Is Now Deprecated

    blog.miguelgrinberg.com /post/it-s-time-for-a-change-datetime-utcnow-is-now-deprecated
  • Uplifting News @lemmy.world
    marsokod @lemmy.world

    Announcing ‘Be My AI,’ Soon Available for Hundreds of Thousands of Be My Eyes Users

    www.bemyeyes.com /blog/announcing-be-my-ai
  • [Dormant] moved to !space@mander.xyz @lemmy.world
    marsokod @lemmy.world

    ESA's Annual Space Environment Report

    www.sdo.esoc.esa.int /environment_report/Space_Environment_Report_latest.pdf
  • [Dormant] moved to !space@mander.xyz @lemmy.world
    marsokod @lemmy.world

    Detection of an old volcano on the Moon

    thedebrief.org /buried-on-the-far-side-of-the-moon-the-detection-of-a-mysterious-heat-emitting-object-leads-to-an-unexpected-discovery/
  • UKCasual @lemmy.world
    marsokod @lemmy.world

    Take a meter reading today (1st of July) as the energy price cap is now lower

    www.ofgem.gov.uk /check-if-energy-price-cap-affects-you
  • Selfhosted @lemmy.world
    marsokod @lemmy.world

    ISP not offering port forwarding anymore

  • science @lemmy.world
    marsokod @lemmy.world

    Consequences of Shift Work and Night Work: A Literature Review

    www.mdpi.com /2227-9032/11/10/1410
  • Malicious Compliance @lemmy.world
    marsokod @lemmy.world

    /r/france is now dedicated to discussions related to France Gall, a former French singer

    reddit.com /r/france/new