m4rtink

14 ms·

361.
by m4rtink 5mo ago
Still, you ideally just want to launch people and some complex machinery from Earth & produce about everything for in space use from local resources. That makes it possible to heavily optimize Earth to LEO craft for safety and reliabili
362.
by m4rtink 5mo ago
Arguably the first Starship launch for example (the one with concrete rain) was pretty impressive, at least on this end of the webcast! :)
363.
by m4rtink 5mo ago
Main advantage of air launch is that you can better match your target inclination or perhaps even orbit timing - just drop the rocket at the right time in the right direction over the ocean. With a fixed launch site you always need to adjus
364.
by m4rtink 5mo ago
In practice at this quite early stage of MeshCore development I would say that repeater need some regular maintenance (like the recent firmware update needed 1b -> 2b) so if they are abandoned, they will eventually fall out of the networ
365.
by m4rtink 5mo ago
Not to mention there being a lot of launch failures pre and during the Apollo era, including pad explosions (there are nice compilations on youtube). But that was not really that much of an issue, as this was expected and there were dozens
366.
by m4rtink 5mo ago
This was an issue already in the Soviet times, with a couple cases of early rocket explosions destroying the pad and causing long delays, including one spectacular N1 explosion leveling its pad and needing lengthy expensive rebuild. As a re
367.
by m4rtink 5mo ago
Well, here in the Czech Republic we managed to cover all the main urban centers with MeshCore in less than one year: https://analyzer.meshcore.cz/#/live I can send a message to a friend in Prague with my MeshCore compa
368.
by m4rtink 5mo ago
In MeshCore a concept of regions has been recently introduced - you can scope channels and messages to a specific geographic region (which is set on a repeater) and it will not propagate outside of the given region. That way local channels
369.
by m4rtink 5mo ago
While the local Czech MeshCore network is heavily supported by a couple repeaters on higher hills and mountains to connect the meshes around metropolitan centers, ideally it should be much more distributed and less dependent on such a few i
370.
by m4rtink 5mo ago
Text messages to other phones in direct range, ideally voice calling as well, using only built in software. Also (more) seamless direct data transfers. Eg. sending a photo to a friend standing next to me without it going through some Cloud
371.
by m4rtink 5mo ago
Well: https://www.tomshardware.com/pc-components/ddr5/chinese-memo... https://www.reddit.com/r/RigBuild/comments/1tlweca/chinese_m...
372.
by m4rtink 5mo ago
Yeah, I also feel that this negative aspect of "AI" adoption is not much discussed overall - massive centralization and dependency on a remote service woth something as important as computer programming.
373.
by m4rtink 5mo ago
One aspect of MeshCore and similar technologies I really like is that the end user devices can directly communicate with each other seamlessly - if you have 2 MeshCore companions nearby, they can just send messages directly, no need for a r
374.
by m4rtink 5mo ago
I have a very different experience - here in Europe with 868 MHz MeshCore you get good singnal from a repeater through one or two city blocks with non ideal antenna placement. With reasonable line of sight tens of kilometers & much more
375.
by m4rtink 5mo ago
If the capsule/rocketplane has some lift & preferably steerable aerosurfaces then you can compensate the purely ballistic deceleration somewhat. But yeah, if it is going down almost vertically then this will not be enough.
376.
by m4rtink 5mo ago
Yeah, I think there will be much more waste when the bubble finally pops & it will be harder to recover valuable stuff. Imagining people buying scrap AI hardware from creditors or bankruptcy auctions & harvesting all the HBM RAM chi
377.
by m4rtink 5mo ago
Yeah, it sounds promising but far from simple in practice. :) There were some early attempts in mobile Linux distros, like original Ubuntu Touch or even Nokias MeeGo and it turns out the main issue is actually improving security while not b
378.
by m4rtink 5mo ago
Like, you could do a partial orbit & then drop down over the destination. But it would need much more delta-v & an orbital class heat shield. It was proposed as nuclear warhead delivery method though: https://en.wikipedia
379.
by m4rtink 5mo ago
And once you do all that, you will need to also handle the massive atmospheric heating from friction, so that the whole thing does not melt during flight. Again, not that problematic for missiles due to shorter flight times and single-use a
380.
by m4rtink 5mo ago
90 minutes is a full low Earth orbit cycle. For a suborbital hop it should be about half of that at maximum for any 2 points on Earth.
381.
by m4rtink 5mo ago
Its totally inefficient - burning the same gas in a co-generation plant, ideally combined with district heating, would produce the same amount of pollution and basically make use of all the energy.
382.
by m4rtink 5mo ago
Suppose the ship is immobilized or under tow after hitting a mine for example. Or even just in port in range of cheap dumb drones. Basically these make it much more likely you loose ships if they stop moving for any reason.
383.
by m4rtink 5mo ago
Alza in the Czech Republic + Allegro in Poland and some surrounding countries are basically Amazon on steroids. It basically looks like Amazon gave up in at least Central Europe and local companies are eating their lunch, but better.
384.
by m4rtink 5mo ago
You can get a proxy shipping address via Tenso (different service but iirc same company as Buyee) and then have stuff shipped there from Amazon.jp & consolidated and shipped to you. I used it successfully for all the cheap and/or r
385.
by m4rtink 5mo ago
Polar stations are even more inaccessible during polar winter with months of total darkness and it is just too dangerous to reach them. The winter-over crews need to be completely self-sufficient until the sun rises again.
386.
by m4rtink 5mo ago
So the remotely running AI now can guess many of your past and possibly future passwords when somone else promps it to ? Seems handy!
387.
by m4rtink 5mo ago
Make all LLM output licensed as AGPLv3 - the license is viral, right ? ;-) Unless you can actually prove what your model has ingested & if you have the license for it in court.
388.
by m4rtink 5mo ago
Don't they also react also with about anything else ? I would be a bit worried what else "gets eaten" if something as reactive as chlorine is released into the atmosphere on a wider scale.
389.
by m4rtink 5mo ago
Radiators need to be flat and thin - not really good for radiation shielding. But guess if you use some sort of fluid in them, you could use a reservoir of it for shielding something.
390.
by m4rtink 5mo ago
Starlinks are in low enough orbit to passively decay in less than 5 years, that really can't meaningfully contribute to a Kessler syndrome. Chinese mega constellations on higher orbits & their spent stages left in space are a bigge

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