Cogito

18 ms·

121.
by Cogito 6y ago
Completely agree, and the messaging is really hard to get right. They are doing these dramatic tests out in the open which sure gets a lot of attention, but there is a real risk of reputation damage or fodder in the hands of their competito
122.
by Cogito 6y ago
Upthread there was a claim by evgen that the way the US vs Soviet approach to the space race had been characterised by mempko was incorrect, and that the current safety of the Soyuz was (at least in part) paid for with the lives of cosm
123.
by Cogito 6y ago
This is moving the goalposts. It's possible that the USSR would have been a better system, had the cold war not happened, but that's not the world we live in. If you want to make that argument you have to explain why it's rea
124.
by Cogito 6y ago
I mostly agree with you, but I'm not sure on why you're focusing human passenger safety on this at this early development stage, as if it's somehow a reasonable thing to focus on. Launching these things IS the issue so far, b
125.
by Cogito 6y ago
As pointed out in some other comments, SpaceX do extensive simulations, they almost certainly have the best rocket simulations in the world (see some of the published talks on youtube to see the state of their research). We know that their
126.
by Cogito 6y ago
The Falcon 9 booster is going relatively slowly, so retro propulsion into the atmosphere (re-entry burn), the grid fins, and the landing burn are sufficient to land it. Starship is intended to re-enter from orbit, which is a lot faster. U
127.
by Cogito 6y ago
Falcon 9 was also intended to carry people. Starship is a more capable upper stage then Crew Capsule, part of which means that it can launch itself (at least suborbital). They aren't trying to qualify these prototypes as human-rated, t
128.
by Cogito 6y ago
What do you mean by profitable? You seem to be using the definition of cash-flow-positive, or something like that. Taking a loan, or investment, does not suddenly make a company unprofitable, that would be a silly way of looking at the worl
129.
by Cogito 6y ago
When evaluating the dynamics of a net, do all tokens move each discrete step or are there other choices that can be made? Are any forms where the edges are weighted, or does each edge necessarily have the same weight? Related to the previou
130.
by Cogito 6y ago
If they are insuring things in or going to space, then yeah! That's exactly what they're paid to do (well the analysts and actuaries).
131.
by Cogito 6y ago
After I finished the comment I almost went back to modify that intro, but figured the gist of it would be ok. What I was trying to do was show how we move from the mental model of dots on a balloon (there is so much space on the balloon! th
132.
by Cogito 6y ago
Remember that, assuming circular orbits (which is fine for this discussion, I think), you have to fit satellites on great circle paths next to each other. For a single great circle you can fit a significant number of satellites in a chain
133.
by Cogito 6y ago
The issue is not in passing through the junk - that's like passing through the asteroid belt. We don't (or at least used to not) even plan a specific path through the asteroid belt, as the chance of hitting anything on the way thr
134.
by Cogito 6y ago
This anime is brought up in a lot of threads on space debris, and as others attest is excellent. It's a fully fleshed out and plausible future, where people have jobs cleaning up space debris, and it explores many of the issues that ma
135.
by Cogito 6y ago
> I think this is a poor characterization because you need to consider the source of both gross and net revenue. I agree with this wholeheartedly. From earlier upthread ( forrestthewoods-0 ): > Apple makes about 60 billion a year in t
136.
by Cogito 6y ago
You are claiming the Google money is 'pure profit' while making phones is not. They are saying that you can't account for the Google money as pure profit, even though the costs aren't as obvious. In particular, their arg
137.
by Cogito 6y ago
In case people don't know, they hit the orbit they were going for. This was a solar orbit that goes out as far as Mars orbit, but does not actually rendezvous with Mars. It's similar to the first part of a Hohmann transfer, but wi
138.
by Cogito 6y ago
Maybe it could! That was just the impression I got skimming the readme, specifically the talk of two wifi interfaces. It seems to assume it is in-between your phone and your wireless router, so putting it on the wireless router would requir
139.
by Cogito 6y ago
If I understand correctly, this can't be used on OpenWRT right? What would be required to make that happen?
140.
by Cogito 6y ago
Putting aside starship, from the very limited information I've seen it's not clear that the operating costs of this system will be comparable to Falcon 9 for the booster phase of flight. It seems like this launch system will be mo
141.
by Cogito 6y ago
Reminds me of a famous prisoner-puzzle. Perhaps the solution will be clearer if you have the concepts of the article fresh when looking at it. ---- The prison warden brings a hundred prisoners to an empty room and hands each of them one of
142.
by Cogito 6y ago
I generally agree with your points, and reading back realised I misread you; you said 3-7% of the rate for an entire launch, and I read that as 3-7% of that launch. On the broader point, I agree that SpaceX is sinking a lot into the Starlin
143.
by Cogito 6y ago
$62m is the retail price. It's likely the cost to launch is significantly lower, especially as they are often the 3rd/4th/5th/6th (has there been a 6th yet?) launch of a booster. Assuming the $62m pricetag covers the cos
144.
by Cogito 6y ago
Sorry for the late response, meant to reply hours ago! I guess that first sentence should have been "I don't know what you think git-flow is, but it does not produce a linear history" or soemthing like that. The history is ve
145.
by Cogito 6y ago
For me, I often don't know exactly how I am going to do something until I have done it. Once it's done I will split the changes into commits that make logical sense, for someone wondering how the new code changes the behaviour of
146.
by Cogito 6y ago
I don't know what you think git-flow is, but a linear history it is not. Look at any post on git-flow (or even just the original [0]), and you will see a myriad of merges. Quoting the original git-flow post: > When the source code
147.
by Cogito 6y ago
It's not git-flow, as all commits are rebased on top of master to make the history of master linear. It is one of the more standard workflows, and it's a concise overview of how the maintainer of curl does their job. For a more co
148.
by Cogito 6y ago
Your link got mangled some how, it is meant to be https://parasitesandvectors.biomedcentral.com/articles/10.11...
149.
by Cogito 6y ago
For DNA, at least, it could have come from RNA (as per the link in my last post). While I don't think the pre-biotic problem is solved at all, we have a lot more models of how it could have happened than you seem to credit - this is af
150.
by Cogito 6y ago
It's possible for a simple thing to encode something more complex, deterministically. The prime example is The Game of Life - simple rules from which complex behaviour emerges. This idea of information is one we're putting onto th

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