* Posts by Vulch

596 publicly visible posts • joined 28 May 2008

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Justice Dept reportedly starts criminal probe into Boeing door bolt incident

Vulch

Re: And another one today

Or 97 horsepower omnibuses.

Ruggedized phone group takes the Bullitt, calls in PWC as administrative receiver

Vulch

Generally no AR-Core

I favour ruggedised phones, but whenever I go looking for a replacement one of the most common comments in reviews is "Why won't this do AR?". Apparently there are a lot of augmented reality apps aimed at architects and builders but no rugged phones that will run them. Maybe not a huge niche selling to architects wanting to show their clients the Shiney (tm) new building in what's currently a muddy field, but it is a market someone could capture.

NASA solar sail tech is ready – now who's up to use it in a mission?

Vulch

Re: Sail or parachute?

It can indeed. There have been outline programmes based on that sort of thing. You can also do it using Earth as the gravitational anchor and have a satellite hover almost over the poles. You can't quite get it over the north or south pole as the sail has to be tilted but it has been investigated for long term observations of the Arctic and Antarctic.

Musk claims that venting liquid oxygen caused Starship explosion

Vulch

Essentially it's practice for a tanker launch, except there's nothing to transfer the surplus propellants to yet and it's easier to dump the excess overboard while the ship is still under thrust. Not having something to weigh down the upper stage also means the first stage flight profile isn't representative, a big lump of concrete would have done but the ships don't yet have functioning payload doors.

NASA science bound for Moon after successful Vulcan Centaur launch

Vulch

Problem after separation

Astrobotic are reporting a problem with the Peregrine lander following separation and systems activation.

British Library: Finances remain healthy as ransomware recovery continues

Vulch

Re: I have trouble understanding this.

There's the problem of knowing how long malware has been lurking on a system before it went active. Are the backups actually clean or will the nasty stuff be restored to your Shiney (tm) new servers along with everything else?

Science fiction writers imagine a future in which AI doesn’t abuse copyright – or their generosity

Vulch

Lawrence Block hopefully either bought copies of the books he read or borrowed them from a library, either way the authors got paid something. . The training material used by many of the current LLMs has been shown (Atlantic, Guardian) to contain a significant proportion scraped from pirate sites. If the LLMs could produce their receipts and library cards I'm sure authors would be a lot happier.

Musk tells advertisers to 'go f**k' themselves as $44B X gamble spirals into chaos

Vulch

Re: dollars over sense

elect him president of Mars

That's just nominative determinism, as predicted by no less than Wernher von Braun in his book "Project Mars: A Technical Tale" over 20 years before his muskiness was even born.

SpaceX celebrates Starship launch as a success – even with the explosion

Vulch

Re: Self destruct

There are images from weather radar in the region showing the second stage debris coming down in a line north of Puerto Rico and Anguilla.

SpaceX's Starship on the roster for Texas takeoff

Vulch

Re: Is it just me

Many weren't that complicated and were things SpaceX had already identified and were either working on or had completed. The 57 required for this flight (the other six were longer term) were completed in September, see this tweet from His Muskiness for the list.

Russia hustles to fill impending void left by the ISS

Vulch

Once upon a time

Russia planned to have a "power tower" module on the ISS, but in the end it never launched and they're wired into the NASA side instead. If they've still got bits of it in storage like they did for Nauka then it might actually get launched nearly on schedule.

Larry Ale-ison institute invests in Oxford pub linked to Tolkien, CS Lewis

Vulch

Re: Licensing authorities should regularly inspect it

"You're only buying three beers in this round but there are five seats at your table, we'll be charging you for five beers"

Brits sign Axiom Space deal for human spaceflight in name of science

Vulch

The general idea is the sponsors will decide the objectives and nominate someone to fill the seat and do the relevant research. Alternatively someone like Richard Garriott might decide he wants another trip up to the station and pay for a seat.

Scripted shortcut caused double-click disaster of sysadmin's own making

Vulch

Re: Are you sure

Once upon a time I had a SCSI drive with removable disc packs. To format a disc pack you needed to answer three prompts chosen randomly from a pool of six. Three of the pool questions needed a 'Y' to proceed, the other three needed 'N', so you actually had to check the prompt before clicking through.

Vodafone claims first space-based 5G phone call – no modifications needed

Vulch

Re: Size Matters

Also it's all very well being able to put down a spot beam, but the tighter the spot is the fewer phones are actually in the coverage area. At the limit the entire spot is focussed on Auntie Mabel chatting to Cousin Doris and a mile away there's a damaged hiker trying to dial the 9's and unable to get a connection. Starlink on the other hand is providing service to the entire National Park with its ginormous footprint.

BOFH: What a beautiful tinfoil hat, Boss!

Vulch

Re: I need --->

Hmmm, there's probably enough unsecured laptop cameras in Bean Counter Central to run SCORPION STARE. Could make a game of it, each turn you get to pick two cameras, winner is first to three statues?

BOFH: Zen and the art of battery replacement

Vulch

Danger of escalation alert

and 1,000W grid stacked core wound motor on it

Whatever one of those might be, it's 4 times the permitted power for an e-bike unless it's registered with DVLC with all the associated faff needed for a motorbike. Don't want to attract the attention of a head office jobsworth who might deny the claim.

India takes second punt at soft lunar landing with launch of Chandrayaan-3 mission

Vulch

Re: All well and good..... @Raj

A lot of it appears to be disguised subsidies to UK companies. It tends to go along the lines of "Hello Foreign Aid Recipient, here's X currency units. Use it to buy Y widgets at Z currency units each from Thingies Ltd based in MarginalConstituencyShire, England" rather than the brown envelopes many people imagine.

Ariane 5 to take final flight, leaving Europe without its own heavy-lift rocket

Vulch

Hacking a Foosball table scored an own goal for naughty engineers

Vulch

"Is Siberian Hamster!"

BOFH: Cough up half a grand and we'll protect you from AI

Vulch

Re: Quite ironic

At one company I was employed by I landed up being designated "Company Drug Pusher" as the admin lady had taken the required first aid course when we got large enough to need one, and as such she was no longer allowed to give people drugs of any kind. This meant the packets of aspirin, paracetemol and ibuprofen moved to one of my desk drawers and I let her know if they were getting low so she could buy replacements on petty cash.

Australia to phase out checks by 2030

Vulch

Re: They still exist?

As long as they aren't Parisiens.

Eco warriors sue FAA over Starship fallout, claim watchdog is lost in space

Vulch
Holmes

Parked car

The car with damage was known to be well within the danger area, and had been deliberately left there as it was being used as a remote camera platform to cover the launch.

SpaceX's second attempt at orbital Starship launch ends in fireball

Vulch

Re: Complexity ≠ Reliability

The plumbing isn't too bad on Super Heavy, the Raptors are directly connected to the bottom of the methane tank and a spider/octopus arrangement feeds them oxygen. One of the major problems with the N1 was the wiring, many, many individual wires carrying analogue sensor information running from each engine to the control unit and inevitably some of them got connected to the wrong terminals resulting in perfectly good engines being shut down because of sensors on other engines showing fault conditions. The individual Raptor engines each have their own control units built in and talk to the central controller(s) via digital data buses.

Smallsats + solar sails = Photos of exoplanets at 1970s digital camera resolution

Vulch

Re: Proper sailing spaceship????

You can't tack properly with a solar sail as there's no way to emulate a keel. Wind powered ships rely on being able to balance the forces caused by the wind against those caused by the water, a light sail at best can have the forces go perpendicular to the light source, never towards it.

Student satellite demonstrates drag sail to de-orbit old hardware

Vulch

Just the batteries is more

AA batteries apparently weigh between 23g and 31g depending on chemistry, alkaline being lighter than NiMH. That puts 65 of them somewhere between 1.5kg and 2.0kg

Space mining startup prepping to launch 'demo' refinery... this April

Vulch

Re: I thought this was about 2023 BU

I believe the standard is as described by Messrs Flanders and Swann.

SpaceX tells astronomers: Fine, we'll try to stop Starlink spoiling stargazing sessions

Vulch

Needs a constitutional amendment before he could stand.

Vulch

Re: Get a Hubble...

The blokes in sheds still discover a fair chunk of asteroids and comets, particularly ones that are coming from odd directions. The stuff in orbit may be very Shiney (tm) and looking a long way out, and the professional observatories on the mountain tops do their bit, but there are lot of sheds with roll-back roofs dotted all over the globe.

FAA grounds all US departures after NOTAM goes down

Vulch
Black Helicopters

So...

A "Who, me?" in about a decade...

Europe's USB-C deadline: Lightning must be struck from iPhone by December, 2024

Vulch

Re: Site radios?

I believe it only applies to devices where the battery is normally (or has to be as it's not removeable) charged while in the equipment, professional level power tool batteries are usually removed for charging so will be able to use their standard charging stations.

Look! Up in the sky! Proof of concept for satellites beaming energy to Earth!

Vulch

Re: You also get the problem ....

It's a trade-off. If the satellite is in LEO it's only in sight of each ground station for a short time each day and the beam has to be actively steered. Losses are greater if it's in GEO, but the satellite is always line of sight to the ground station and beam adjustments are minimal.

NASA reassigns Venus boffins to save short-staffed asteroid interceptor

Vulch

Re: metallic core of a failed protoplanet

Basically yes. Most simulations of Solar System formation have several largish (up to the size of the Moon) bodies forming in the asterid belt and either colliding with each other or being ejected following close misses with each other and Jupiter. The asteroids we see there now are the debris left over from the collisions.

Parody Elon Musk Twitter accounts will be suspended immediately, says Elon Musk

Vulch

Re: Free Speech!

Ten years ago...

https://twitter.com/elonmusk/status/192701084932907009

NASA details totally doable, not science fiction plan for sending Mars rocks to Earth

Vulch

Re: China's Moon Mining is a better idea

NASA has yet to land a rocket in reverse

Except for several Surveyors and Lunar Modules on the Moon, both Vikings, Phoenix and InSight on Mars. Arguably Curiosity and Perseverance as well.

NASA, SpaceX weigh invoking Dragon to take Hubble higher

Vulch

Re: why stop there?

Which would involve a plane change from the Hubble orbit inclined at 28.5 degrees to the ISS orbit of 51.6 degrees as well as the altitude adjustment. You'll be needing multiple Falcon 9 launches just to get the fuel into orbit for each leg of the journey.

NASA sees our space future as both government and privately run

Vulch

Re: Slow EU decision making

Also, after the International Solar Polar Mission got chopped in half ESA got very cautious about being too involved in NASA projects that may get dropped at short notice.

NASA's Space Launch System rocket is on track for August 29 liftoff

Vulch

SpaceX upgrades Starlink to reflect less light, can't launch without its Starship

Vulch

Re: Less per lauch?

They are a lot heavier, not just a bit. The ones currently in orbit are between 250kg and 300kg, the earlier ones didn't have the laser links so were lighter. The v2 satellites are 1250kg so 4 or 5 times more massive than the current ones, they're also twice as long so don't fit the fairing when flat and would have to be stood on end for launch on an F9.

NASA: Mars rocks won't make it back to Earth until 2033

Vulch

Followed by Elon in 2030 saying "I've got 20 tonnes of samples here, where would you like them?"

Vulch

Costs too much in fuel. Coming straight in can use the atmosphere to slow down, Earth orbit means they'd need to take the fuel for that to Mars and back.

A character catastrophe for a joker working his last day

Vulch

Re: Nothing so severe

Back in my student days one of the porters came into the refectory and shouted loudly for Mike's brother Isaac...

Is the $10 billion James Webb Space Telescope worth the price tag?

Vulch

Re: And the answer to the question is

LUVOIR is the current project name, Large Ultra Violet, Optical and Infra Red. Intended for launch on an SLS or a SpaceX Starship depending on cost and availability.

Dmitry Rogozin sacked as boss of Russian space agency Roscosmos

Vulch

Re: Sunflower

There is informed speculation that he will shortly be appointed Administrator of the Temporarily Occupied Territories in Ukraine.

ESA's 2030+ roadmap envisions Europeans on the Moon and Mars

Vulch

Re: If ESA was smart

Equatorial sites will be a boon for rapid orbital refuelling. Launching from KSC gives you one window a day for tanker launches to a particular destination, a launch site on the equator gives you a window every orbit.

BOFH: HR's gold mine gambit – they get the gold and we get the shaft

Vulch

Re: Out of all these...

Would probably know which side his bread was buttered as well...

Seriously, you do not want to make that cable your earth

Vulch

Re: almost whoops

Under the raised floors at the ITV station I worked at were like that. Studios built and wired for 405 lines monochrome, rewired for 625 monochrome, rewired again for 625 colour, new studio built with all the extra wiring for that, sound rewired for stereo, franchise lost and studios demolished before rewiring for full digital was required.. Can't pull the old cables out until the new has been shown to work, can't pull them out then as there's too much weight on top of them. Nothing quite with enough layers to stop the floor tiles going back down, but close...

NASA's InSight doomed as Mars dust coats solar panels

Vulch

Re: Big Fan

And said little helicopter is also suffering from dust accumulation on its solar array.

Chinese drone-maker DJI suspends ops in Russia, Ukraine

Vulch

The article is repeating a mis-conception, for your 100 or 150K USD you get a complete *system*, not one drone. The system comprises a control centre, launch rail, five or so actual drones, and a truck to carry everything. Subtract the likely cost of the truck and control centre electronics and the choice of drone components makes more sense.

COVID-19 contact tracing apps were suggested as saviors. They sometimes delivered

Vulch

Re: technical feasability

The first version used a centralised and not anonymous data store, Big Brother knew who you were and where you'd been. Google and Apple didn't allow that sort of app access to the low-level API so it chewed battery and I think had problems running in the background. They then switched to the anonymous decentralised model which helped with both. When chased for up to date source in their GitHub repository the developers stated that regularly updating was too difficult, and issues were either ignored or dismissed. At that point I decided I was never going to install the software and lost interest in following the development.

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