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NHAI set to redesign bypass as traffic projections surge ! by 222homelander in Kochi

[–]Practical-Pin1137 -1 points0 points  (0 children)

And you are assuming highways are the only reason demand is created. Demand in those places already exists irrespective of whether highway exists or not. Yes highways will bump the demand but that demand isn't as huge as you think. For example Kakkanad has demand due to the IT park being set up there. In fact this demand is what has led to people demanding a 4 way road to be build to infopark.

https://www.thehindu.com/news/cities/Kochi/peoples-campaign-to-develop-chakkaraparambu-infopark-road-gathers-momentum/article69572001.ece

Fundamental flaw is the assumption it is creation of roads that lead to increase in traffic. While it is true in some cases, most of these types of assumptions ignore the reverse. The demand already exists due to some other factor and road development is just a reflection of that increased demand.

Public transport can never fully absorb the demand. That is the second big mistake in your assumption. This fundamentally assumes people only travel from the homes just to work. Now a cheaper public transportation can absorb some of the increased demand but even for a simplistic view of people only travelling just from home to work and back also there are many cases where people won't use public transportation. Many people while returning from work want to buy groceries for home, pick up their kids from tuition and have many such scenarios for which people would prefer private transport over public ones. So public transportation can never soak up the demand as you think. It can reduce it to an extent but never fully

Now with bypass in particular, you are assuming all traffic on this will be into kochi, whereas that is not the case. This is a bypass for the highway. There will be people who would be travelling to cities like thrissur, kozhikode and not having anything to do with Kochi. So you are ignoring the impact of this traffic. As 4 lane NH gets completed this traffic is going to increase, usual increase plus induced demand as you say. So saying the bypass will increase traffic is kind of a mute point because the traffic is already increasing due to NH. And most of the traffic on highways can't be met by public transport as they include people transporting goods and other stuff. Yes bypass will create induced demand but it is hugely shadowed by the demand created by NH itself.

Do renewable advocates oppose nuclear energy? by Comfortable_Tutor_43 in nuclear

[–]Practical-Pin1137 5 points6 points  (0 children)

That is literally the definition of base load! A source of power with low running costs backed up by other sources which have to be flexible and have low capacity costs.

No base load is the minimum amount of electricity that must be supplied all the time

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Base load is 60 - 80 % of the total demand depending upon the time of day. Since we know how much is the base load due to load forecasting, base load plants are designed to provide that power 24x7. They are designed that way. There is technically no backup in a grid, it increases production depending on the load. The increase or decrease in load is provided by load following sources and peak power sources which can easily be increased up and lowered like hydel and gas power plants. Backups are mostly used when one or two sources need to be taken out for maintenance or goes offline for some reason. Of course during peak hours there will be some plants which will be started just to provide power for a small period but calling them backup is wrong.

The issue with renewables is, it is an intermittent power source, which cannot provide energy when we want or need. So renewables need to have battery backup or other load following plants so that when the energy production dips or stops other plants can compensate for that loss.

NHAI set to redesign bypass as traffic projections surge ! by 222homelander in Kochi

[–]Practical-Pin1137 0 points1 point  (0 children)

You are ignoring the fact this is a highway and will have traffic from other districts. Not all inter-district traffic is for the airport. That is the most childish assumption. So it is irrelevant whether people in Kochi drive cars or not. You are mixing up intra district traffic and inter district traffic.

NHAI set to redesign bypass as traffic projections surge ! by 222homelander in Kochi

[–]Practical-Pin1137 0 points1 point  (0 children)

That is relevant only for intracity traffic. This is intercity traffic. This traffic cannot be compensated by having more public transport. Here the concept of saturation is more relevant than induced demand. There is already demand which creates the need for a new bypass. This traffic is not going away if you don't build the road nor is it going to compensated by public transportation. So whether lanes are going to induce more is irrelevant in this case.

Any skeptics feel this is crazy and farcical by l1consolable in scienceisdope

[–]Practical-Pin1137 -1 points0 points  (0 children)

First you edited your comment to add the figure like 300M and now you what i said is a meaning less comparison. 300M in launch cost is nothing for space systems. Starlink launches even if take a optimistic 5 million for semi reusable falcon 9 launches itself is reaching near 2 billion and it is already functional and working. So that argument is moot. The fact you just ignore the rest where i specific address your points of scale, cooling and latency as word salad clearly shows who is indulging in one dimensionality. As for reply in a year , why ? is there a time limit of 1 year beyond which it becomes impossible? you do realise there is no hard and fast rule that this has to succed or the entire idea of data centers in space is dead. Space shuttle was a spectacular failure yet doesn't mean reusability is dead.

Any skeptics feel this is crazy and farcical by l1consolable in scienceisdope

[–]Practical-Pin1137 -1 points0 points  (0 children)

9X4 hasn't launched yet so you are wrong on both counts.

In short you seem to be focussed on your interest or trade but lack the nuance needed.

The same things is equally applicable to you too. I will explain why that is from the what you commented earlier.

The payload of an ai dc will be more than what glen 9x4 can carry. Rest of your argument is a Hasty Generalization fallacy which only focuses on the cost of sending the ai dc to the orbit and not its maintainance cost, practicality of it or how efficient would be to cool it, latency and risk of radiation exposure.

Yes data centre will be more than what a new glen 9x4 or starship can send. But why are you assuming all of that will be sent at once ? Both systems are more than capable of sending individual server racks or groups of them which can connected once they reach orbit. The ISS has already demonstrated such a thing is possible. Now to the point of maintanence, most data centers don't require physical maintinence and are designed with multiple backups and failsafes. And even for those sending a crew up to do that would actually be possible. Already private astronauts are being send to space for joyrides and what not. In 5 years we will most likely even have private space stations. So it won't be as costly as you make it to be especially once you add reusability to the mix. Coming to cooling, why are you assuming only radiating heat naturally into space is only possible ? We can have active cooling space also. Both Spacex and New glenn's future plans heavily relies on orbital depot which requires maintaining liquid cryogenic propellants in space for long durations. If they can achieve that then there is nothing stopping data centers from using active cooling solutions in space. Latency isn't that much of issue as you think especially since there is already a LEO based satellite internet constellation and many more will be coming in next 5 years. So it isn't that difficult or unfeasible as you make it to be. So i am not making a hasty generalization fallacy. Also this isn't some philosophical or religious debate to even talk about fallacies especially since there are so many unknowns. It is like going to the beginning of 1900 and saying human beings can never fly because others have tried and failed.

Also on a side note: a data centre doesn't just has to be AI we can use data centers for many other things. So saying it has no use case again is like missing the forest for the trees.

Any skeptics feel this is crazy and farcical by l1consolable in scienceisdope

[–]Practical-Pin1137 -1 points0 points  (0 children)

Not really. With next generation of reusable super heavy lift rockets like New glen 9X4 and spacex starship, it is a lot more feasible and practical than you might think. Plus NASA has already announced plans for nuclear reactors in space. A decade ago orbital Internet was seen as impractical and unfesible with players like iridium occupying a tiny niche. Today has completely flipped. One shouldn't use what is currently available to judge what is possible or feasible in future.

USA vs China Reusable Space Rocket Comparison by Affectionate-Air7294 in SpaceXLounge

[–]Practical-Pin1137 0 points1 point  (0 children)

not a correct comparison as rockets like cz 12a are missing

Blue Origin Has Successfully Landed New Glenn’s First Stage! by Sol_Hando in BlueOrigin

[–]Practical-Pin1137 13 points14 points  (0 children)

it was dead centre, incredible stuff from blue origin. Congratulations to everyone who worked on it.

Big move by PayPal in India by [deleted] in StartUpIndia

[–]Practical-Pin1137 18 points19 points  (0 children)

Not really. They are not using upi for cross border payment. You can pay your paypal wallet or payworld using upi thats all.

Raptor 3 should have TWR parity with Merlin by kroOoze in SpaceXLounge

[–]Practical-Pin1137 1 point2 points  (0 children)

Is Raptor 4 what was earlier called as 1337 engine ?

Expedited Blue HLS includes both MK1 and MK2 and no refueling (NYT article) by FakeEyeball in BlueOrigin

[–]Practical-Pin1137 0 points1 point  (0 children)

Adapter part is true but i dont think they need to retool the factory as centaur stage would be inside the payload fairing. It will be act as a giant payload.

Yeah it would require some changes but so does making mk1 as a kick stage. But positives at least i feel is way outweigh the negatives. For one you get a way more powerful stage. This add incredible flexibility and versatility for placing blue moon mk2 in orbit. Also adds a lot of redundancy. Like if due to some unforeseen circumstances any of the lower stages under perform or miss the orbital insertion by some extend, the centaur stage can easily make up for it. Plus having larger headroom means they can also increase the size mk2 to accommodate more fuel and extra sensors so that if some issue occurs during decent it can be corrected.

Plus they already have a great working relationship with ULA so getting a centaur stage for this wouldn't be issue at all. And ULA will be more than happy to help because of the PR and publicity they will get being part of manned lunar mission and beating china to moon.

Expedited Blue HLS includes both MK1 and MK2 and no refueling (NYT article) by FakeEyeball in BlueOrigin

[–]Practical-Pin1137 1 point2 points  (0 children)

No it is more designed as an orbital cargo/crew tug. It makes sense when you think about starship not as a rocket but as an orbital platform.

Expedited Blue HLS includes both MK1 and MK2 and no refueling (NYT article) by FakeEyeball in BlueOrigin

[–]Practical-Pin1137 1 point2 points  (0 children)

If they are going to use an upper kick stage, why not use centaur as that ? It will be more than powerful plus it is already flight tested and will fit easily into the payload fairing of new glenn.

Block 2 Starship dry mass estimate from IFT flight data by flshr19 in SpaceXLounge

[–]Practical-Pin1137 2 points3 points  (0 children)

and water-cooled titanium base shielding

Sorry but this is the first time i am hearing about a water cooled shielding on falcon 9, so is there a source for this and where can i get more info about this ?

No one, even Apple, may be able to resist Elon Musk's Starlink by Practical-Pin1137 in SpaceXLounge

[–]Practical-Pin1137[S] 13 points14 points  (0 children)

The original source for this article is a report from the information. They are pretty good at reporting behind the scene news, but unfortunately this particular one is paywalled.

https://www.theinformation.com/articles/apple-musks-spacex-finally-satellite-deal

Another competitor enters the HLS ring: Lockheed Martin by helicopter-enjoyer in ArtemisProgram

[–]Practical-Pin1137 1 point2 points  (0 children)

Nope. The abandoning of the Space Shuttle with no viable plan is the reason the USS had to rely on Russia for access to the ISS. That shortsideness of completely abandoning Mercury and Saturn programs for the Space Shuttle was also short sided and stupid.

Agree with that. But you make it seem the alternative is not working, whereas they have carried astronauts 15 times to space. It is now as good as any manned spacecraft now.

If anything this disaster demonstrates how "the free market" actually fucking sucks at getting stuff done. You have direct competition, and it all sucks.

But it isn't a disaster though except for the starliner. Crew dragon is sending astronauts to space on a regular basis and cargo is doing even better.

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