marsokod

Not the parent, but I believe they were talking about LCOE, or total cost including building the plant and operating it. So that will be the cost of natural gas plus the rest amortized.

That's the thing we need. If your satellite is operating and in Low Earth Orbit, it is extremely easy to avoid a collision, even without any propulsion system.

If you are aware of the risk of collision a couple of days in advance, just changing your satellite orientation for a couple of orbit will retire the risk of collision.

You may want to perform in-orbit servicing, but that is more about increasing the longevity of your assets in orbit or increasing their capabilities via refueling/upgrading/repairing.

> So a single 300-kW port in a public charging station includes about $90,000 of power electronics, of which about $54,000 is for the isolation link. I would love to see a concrete BOM for a sample build and mouser links to back this up.

This kind of checks out with the price of 200kW and 400kW chargers from Alpitronics: https://www.connect-gp-joule.de/en/shop/dc-charging-stations...

Between €67k and €102k (for some reasons VAT included in that price) for these units.

[...] in our test, the party political content chosen by the recommendation systems on Tik Tok and X was politically biased.

On TikTok, 78% (28/36) of this recommended party political content was supportive of AfD. On X, 64% (14/22) of such recommended party political content was supportive of AfD.

The picture on Instagram was very different. 96% of the content we were shown on Instagram came from one of the eight accounts we followed.

With personal photos, PDFs and everything, that's 3-4TB. With pure documents, that's still around 100-200GB.

The thing is, I don't know what I will need at a given time so I cannot just have a subset synced. Like when some friends I am visiting abroad wanted to have pictures of my house, or of an event we did with our children, now I can browse through them live.

It can not be a matter of "data always available online", because you could solve this with a virtual online drive that can be browsed and/or synced with your work computer.

That's exactly my reason for using nextcloud and other apps like that though.

I want to be able to browse my own files from my phone or any other safe device, and that's what nextcloud offers. It is literally a "virtual online drive that can be browsed and/or synced" with any device, much like bewcloud.

I personally use nextcloud because I am using its other features as well, and there is no denying it suffers from being a jack of all trades, master of none, but having your data in the cloud, being able to access you admin paperwork, share data with your relatives or even random people, or manage a calendar amongst several people is a fairly frequent use case.

It is even worse, this $8M contract is alread partially executed, so only $5.5 millions are left.

And it does not say anything about what is being cut by cancelling the contract and whether it is useful or not.

They can make SpaceX life hell through the ITU. Eventually SpaceX can only operate if they get the licences to operate, and if they bypass this, they would show that they have a disregard of RF regulations and this will be used against them the next time they need to get/renew a licence.

It would be useful for people who do not have a home charger, so that they understand if they can do a whole week with it. It is also useful for taxi drivers (though I would hope they do more than just reading a single number).

It is difficult to find a good solution for this, even providing 3 ranges (city, suburban, highway) has its limits and will confuse people.

No, they are saying that the nuclear drive shall be reserved to a shuttle that remains in space. At that point, it makes much more sense as you can really use the nuclear drive to its full capabilities.

If we need the full performance advantage of nuclear propulsion, we should design a spaceship that is intended for it from the get-go. It never lands, only going from orbit to orbit, so there is no need for heat shielding, flaps, high thrust engines, thick steel structure or aerodynamic shaping requirements.

In bigger cities there are a lot of streetlight chargers popping up, like these ones: https://www.fmconway.co.uk/our-services/surecharge

It will take some time to be more widespread, but I think this and small 7kW stations here and there (like the ones from Source London) charging will be the technical solution.

As for how this will be incentives, I don't expect to see much until ICE are banned. 65% to 75% of households in the UK have off-street parking, that's more than enough for charging providers to get established and have different types of cost effective chargers. Once ICE are banned, then there will probably be incentives to cover dead zones. Unfortunately, that's usually how it goes and people living there are usually getting things last, like for broadband, 5G.

It's a bit more complex than that unfortunately. Depending on how long you stay at high charge level it will negatively impact the battery life. So someone charging at 100% all the time but discharging quickly might see a better cycling count that someone charging at 90% but staying there almost all the time.

I was able to find the details (source in French: https://photo.capital.fr/shrinkflation-voici-la-liste-des-pr...)

In addition to the volume reduction, the price also went up from 1.45€ to 1.63€.

So the price per litre went from 0.97€/L to 1.36€/L. Much closer to the 40% figure.

I have a heat pump in such a house, even worse actually since it is a semi-detached. I did not need to do any extra work, and it works fine. My savings are not great, but that is also mostly because I don't have a hot water tank so I still need gas for my hot water. We just replaced 3 radiators, one of which is actually still permanently shut and I am still doubtful about the need for the other twos.

For the walls, it can become quite expensive to insulate it. But at least for the wooden floor, you have a cheap option: lay a new laminate flooring with proper underlay. It will cost typically less than £1000, you'll avoid damaging your wooden flooring, and also improve the thermal confort by removing the air leaks and insulating more.

Yes. CCS2 has not technically won yet as being the default port for all EVs in Europe, but any other option would have to have significant advantages over CCS2 to win, features that a potential CCS3 version would not be able to support.

In that world, Tesla would have had to switch their cars over to CCS eventually and retrofit their existing chargers to CCS, and people who bought Teslas with the proprietary plug have a terrible UX of needing adapters everywhere.

It should be noted that in any case Tesla will have to support CCS, though in its CCS2 version. It is the de facto standard in Europe and is in the process of making their chargers in Europe fully compatible since the M3 comes with CCS2 by default here. And it is unlikely to change any time soon, CHAdeMO is dying here and all the other networks are using CCS2 (which seems to be much better than CCS1 if I trust the complaints about CCS1 I read on HN).

You'll need to have a good source on that because the majority of the latest satellites are using at least AES128 or better AES256 for this kind of stuff. Granted, a few of the implementations I have seen are a bit exotic and probably somewhat vulnerable, and the key management can be quite manual, but we are not at the middle school teenagers level anymore.

And I doubt very much that Starlink or OneWeb (OW is using AES256) satellites are that easy to hack, and they by themselves are most of the satellites.

Many satellites are also able to monitor contacts made from the ground and if someone is able to gain access to the communication stream, they'll quickly (within 10min) have to learn how to hack the onboard software to reset these monitors.

They hacked OPS-SAT which was an experimental satellite by ESA to test different ways of operating a satellite. The very purpose of this satellite was to be a test bench for this kind of things.

Gas as in petroleum. In the UK, this was caused initially by a constraint on having enough drivers for the trucks, which lead into a few local shortages. The fear came into that and people rushed to fill their tank. The system being not sized for this, this ended up creating actual shortage with a positive feedback loop.

Similar issue in France: strikes were happening leading to local constraints, which was then amplified by people rushing to fill their tanks. In both cases, the situation comes back to normal after a few weeks.

This is the toilet paper shortage, or the bank run, all over again.

Or it could be a PCM pin-puller system: basically paraffin is heated and while it liquifies, it will slightly expand and push a pin that will trigger the release.

It is a bit more challenging in general for satellites but they always have remote access available regularly.

And in particular for Starlink, a constellation providing internet access, network capability is absolutely not an issue from an operator perspective. Even without the laser intersatellite link, the satellites can be contacted a fair portion of their time and have more than enough bandwidth to deal with software upgrades. Once they have laser comms, they will have 24/7 access to them, bar the odd failures.

The time to first fix is mainly impacted by whether the receiver knows which satellites to listen to. This requires two things: having the ephemeris for the constellation (either 10min of listening to GPS signal, or getting that through AGPS), and it's approximate own position/time (done through cell antenna locations, and NTP) to know which satellites should be visible.

Once this is available, the receiver can then focus on the signals that are expected and will then be able to provide a 3D fix as soon as it receives something from 4 satellites, which would be in a few seconds.

In my case that's actually multiple functions: remote login without using TeamViewer and also for general remote support, and I have a small backup server at the place for my off-site backups.

> You only need to charge your car for a few hours every 300 miles

But where?

https://goo.gl/maps/giAwwS5qRKBuKNDH6

This is one of the many neighbourhoods in my country and many other european ones, with a large parking lot with a lot of cars. All there cars now need ~5 minutes at a gas station every 600-1000km.

I am not sure I understand your point here. You are showing a residential car park that is a very nice location to install multiple slow chargers for cheap. The only reason this is not done at the moment is that there are not enough EV around, but otherwise you are looking at a small investment for regular revenues on electricity sale (or you can get your building association to buy some and keep the electricity as cheap as possible)

Add some studies that electric cars are even more expensive to charge than gaspowered ones are to refill, and it's even worse - https://finance.yahoo.com/news/electric-shock-study-found-ev...

Be careful about this kind of studies, and even more about news article about them. While this one has a bit more data and is doing less mistakes than the usual rogue journalist study we see once in a while, the electricity cost they used for residential charging is wrong: they use at least very high prices for home electricity, in one of the worst state in the US for electricity pricings without using off-peak prices.

And 2035 is not some distant future project... if you want to retrofit all those parking yards with chargers, you literally have to start doing it today... also build a bunch of nuclear power plants too, because if we do it the german way, by digging coal, we didn't do much.

Yup, that's the point of this bill. To provide guarantee to the industry that they won't be building these chargers and power plants for nothing. Now they know that the market will shift towards EV with hard deadline in 2035, and you can pretty much guarantee that the vast majority of the cars on the road I'll be EV by 2040/2045.

The main reason this is looked at is that, while you are right in saying these materials resources are well distributed, China has been a major supplier for decades, buying out all their big competitors. The result is that they are way ahead of anyone else in the engineering processes to extract, process and transform these elements into viable products at scale.

If China were to stop selling them, everyone else would have a lot of difficulties replacing them right away and would need at least 5-10 years to pick up the pace.

That's not actually CCS, but the Type 1 connector part. In Europe we have Type 2 + CCS combo and there is no such latch at the top: we just stick it in and it start charging. The latch is directly in the car.

While it would be definitely interesting, I am not sure it would be really helpful. This is really comparing apples and oranges here: you will have statistics for modes that are used in specific situations against more global statistics. Without more data (which would raise privacy questions), it will be hard to correct the numbers for the usage.

The situation with Arenh is even worse this year. The government reviewed it in September 2021 (voted in August this year), increasing the quantity of energy that could be bought through Arenh each year. But this increase happened after most long term contracts were already bought so the extra deliveries they had to do in 2022 are not only a cut on their profit, they are also a massive loss as they have to buy this energy on short term markets which are multiple fold higher than the Arenh price point.

How so? I can find IP67 micro-USB and USB-C connectors on digi-key. Is it a matter of USB-C not having the IP rating as part of its spec?

And my latest trimmer is actually using micro-USB, though with an additional plastic plug preventing the use of the charger on another device. But I can charge the trimmer with any other Micro-USB charger.

Some of the public charger networks have offerings to manage that for you. You can task Chargepoint to install and maintain a charging facility on your premises for instance. This way you just need to organise the parking and the access to the connection, but everything else is outsourced.