* Posts by Stoneshop

5954 publicly visible posts • joined 8 Oct 2009

Any social media accounts to declare? US wants travelers to tell

Stoneshop

Re: I'm Amish.

One word & I've just rendered 99% of your questions as irrelevant. No electronics, no electricity, no phones, nothing.

It's a good thing someone built a semaphore-to-Internet gateway then.

llama shearing

How about yak shaving?

Uber self-driving car death riddle: Was LIDAR blind spot to blame?

Stoneshop

Re: with no light

I still think at some point Uber might try to sabotage self driving cars if it looks like it's going to kill it's business

With the second or third such 'accident' they will get their license to test self-driving cars revoked by the relevant federal agency, so no getting out from underneath that by moving the testing to a more lenient state. With the other companies maybe getting a couple of restrictions, if at all when they can show their accident rate being way lower, especially when they would have zero fatalities, because of their setup.

Which would leave Uber at a severe disadvantage, still having to use badly-paid wetware to provide their service, when the others can reach full vehicle autonomy much sooner and leave the scraps to Uber

Stoneshop
Devil

Re: "...a [Lidar] blind spot low to the ground all around the car."

What about sinkholes?

Perfect, especially when they're large enough to swallow the whole Uber self-driving car.

Stoneshop
Joke

Re: cost-effective but results in a blind spot low to the ground all around the car .

Hedgehogs. Why those haven't yet evolved titanium skin with tungsten spikes is one of Evolution's Great Mysteries.

A hedgehog is strolling the edge of a road, and comes across two rabbits. "Hey guys" he speaks up, "What is it that I see so much of my fellows being flattened while trying to cross, and only rarely a rabbit or a hare?". "Geometry", one or the rabbits answers. "If you're trying to cross at night, and you see headlights approaching, then either move back to the verge, or sit right in the middle of those lights. And by day you can use those headlights as markers too, even when they're off. Let me show you.". He jumps into the road, positions himself (looking over his outstretched front legs towards the approaching car's headlights), and indeed, the car passes right over him and he hops back to his mate and the hedgehog. "Aha" says the hedgehog, "Thanks, I'll try that". And as he starts crossing the road, another car approaches. The hedgehog shuffles around a bit, positioning himself and finds the right spot. "Oh look", the other rabbit remarks, "you don't see those Reliants much any more".

Stoneshop
Headmaster

Too late to avoid the accident, but never too late for an emergency break,

If the parts the car is supposed to break into are small enough, and dispersing sideways, the pedestrian about to be hit will have a much greater chance of survival, maybe even just suffer a few scratches and bruises.

(I've long fantasised about red-light cameras being able to send out a disintegrating beam, turning the offending vehicle into gooey snot. Subjecting the driver, not physically hurt very much, to howls of derisive laughter from all onlookers).

Stoneshop
FAIL

You are assuming that the approaching human in question was in the 'cone of surveillance' for the lidar.

What part of "360 degree view" is it that you need explained?

Stoneshop

Re: cost-effective but results in a blind spot low to the ground all around the car .

They don't like dogs do they :(

Wild boar, badgers, wombats ...

Tiangong-1 re-entry window shrinks: Duck from March 30 to April 3

Stoneshop
Trollface

Re: Prediction

More importantly, who waits for a physical version of it to be posted??

Well, given the speed of British broadband, a few CDs carried by camel* from Outer Mongolia may well be an improvement in speed.

* actual camels not considered part of shipment, unless they consent.

Tesla crash investigation causes dip in 'leccycar firm's share price

Stoneshop
Devil

Re: Barriers

I think Caltrans is trying to enforce a one car, one idiot, one barrier replacement ratio. The gore point used to have the usual water buckets but they were continuously being destroyed and replaced.

They might want to consider a ramp going up to the height of the barrier plus some sort of plateau so that the car doesn't flop off the rather narrow barrier and block one of the lanes, with arrestor cables and maybe an overhead crane to pick up the wreck and get it over to the shoulder.

Stoneshop

Re: local fire brigade was unsure if the car’s battery would explode

Off topic, but why? I'm sure there's a logic, but at face value there would seem to be a sizeable weight penalty of all those metal cans, and a volume penalty of stacking cylinders, not to mention the high aggregate cost.

Ease of production seems to be the biggest factor. Cranking out 18650 cells is mature technology by now, and if you need a lot of packs able to hold a lot of energy, you can choose to go for a dedicated form factor that packs cells more densely, or just go with what's there, with maybe somewhat lossier packaging but lower startup costs. Never mind that cells do need individual packaging of some sort, packing cylindrical cells isn't very lossy with regards to total space. And maybe the space left between the cells is useful by way of possible ventilation and cooling (just a guess).

And upping the size from 18650 to 21700 isn't a change that would require a radical change to the production and assembly processes.

Stoneshop
Flame

Re: local fire brigade was unsure if the car’s battery would explode

Perhaps the First Responders should become more familiar with the internal construction of electric car battery packs, typically consisting of endless numbers of wee feisty little '18650' (18mm by 65mm) cells. In the future, the Tesla cells will soon be '2170' (21mm x 70mm).

The problem is there being up to several tens of kWh of energy in the pack; the actual construction matters less.

Any "explosions" would be an individual cell, and thus not all that big. They may be sequential.

They're not explosions. And if there's damage to the battery pack there will be multiple cells affected. If those start to heat up their neighbours will join in sooner or later, and the cumulative heating may well cause them to combust more or less at once. There's also the problem that you don't know if the cells' internal protection has done its job correctly; with at least one previous Tesla accident some cell packs were thrown clear of the car, and started burning out in the open.

First Responders need to make themselves familiar with the OEMs' safety advice, that has been directed to them specifically, proactively.

They do. At least over here. Just last week there was ample demonstration that turning across an approaching tram (never mind that a turn like that from the direction they came from is prohibited) is guaranteed to ruin your afternoon as well as your insurance no-claim rating. The arrival of a fire truck surprised us a bit, until we got a view of the side of the car that wasn't impaled on the Scharfenberg, showing it to be a Hyundai Ioniq. We didn't see all of what the firemen did, but they were clearly there to assess a possible fire risk before the tram was allowed to move back and the car towed.

Skip-wrecked! Boat full o' rubbish scuppered in Brit residential street

Stoneshop

Re: Sounds familiar

Well, good old Oxfordshire County Council won't even let you into their sites without a car (bike not allowed) for 'safety reasons'.

Curious what they would think of a motorcycle with sidecar, which McD once considered not automobily enough to serve me a milkshake at the drive-through. The municipal rubbish dump was OK with it though, when I went to dispose of 160kg of rebuilding remnants.

Sysadmin wiped two servers, left the country to escape the shame

Stoneshop

Then again, in my experience so did the higher end stuff as well, but the variability was lower in that high cost environment.

VMS clusters can be quite unhomogeneous, VAX8800 with Alpha DS10 and MicroVAXes, as long as they're running the same VMS version. Different CPU architectures require that the system disks be separate (you can have a common system for all the machines of the same arch), but data disks can be mirrored right across them. For disk mirroring you do want roughly identical sized disks, although they don't need to be exactly identical. Just that you want to start building the mirror set off the smallest.

SpaceX blasted massive plasma hole in Earth's ionosphere

Stoneshop
Boffin

but a hydrogen balloon that stands a good chance of being in the exhaust of a rocket engine just seems like a bad idea.

Not quite. The hydrogen is not pre-mixed with oxygen in any way so it will combust instead of explode, which will be a much less violent event (see: Hindenburg, but without the passengers). Also, it will happen in a thin atmosphere, so little oxygen for the hydrogen to react with. I expect the combustion to run out of oxygen locally and extinguish before all the hydrogen has burned, with the remainder of the hydrogen dispersed in the upper atmosphere.

That is, if you manage to get it up this way, anyway.

User asked why CTRL-ALT-DEL restarted PC instead of opening apps

Stoneshop

Re: Feeling Old...

There was even a pr0n paper tape for an electromechanical Friden Flexowriter.

a) this doesn't surprise me in the least.

b) as someone who has custody of a few Fridens, this is now something on the 'must have' list

Stoneshop

Re: Feeling Old...

An extended memory card (I think it was extended memory that allowed mapping of stuff into the 641K-1024K region).

Expanded. Which had a window somewhere in the free space between 640k and 1M (upper memory) that it mapped pages into (LIM-EMS: Lotus-Intel-Microsoft). And if you had a 286 or 386 with particular chipsets, QEMM could move RAM around into upper memory not occupied by ROM so that it could load drivers and TSRs in there.

Expanded memory could be used (assuming that you had a 386) to sort-of-do multitaking with QEMM. Even on a PS/2 50z (286 processor) you could (sort of) do multitasking as long as you had the right memory card.

That was DesqView, which wanted extended memory. And it was good enough that it could run two copies of Windows 3.1 in 8086 (real?) mode.

Stoneshop

Re: Feeling Old...

Panasonic, Soundbalster and.....? Not IDE but can't recall the third one. Any one remember?

Mitsumi.

(where's that cobwebs icon?)

Stoneshop

Re: Feeling Old...

and using IPX/SPX

Had to upgrade a bunch of JetDirect cards on a TCP/IP network, LJ4 era. Version was supposed to get upped to 5.something. Cards at 4.low had to do a two-step via 4.high before 5.something could take hold. Then half a dozen or so units turned up that still had 3.medium, and no 4.intermediate version managed to stick. No errors, upgrade appeared to go OK, but on restarting the version still showed 3.whatever. Until, for some obscure reason, and one which I apparently had good reason to forget, I tried IPX. Which wasn't in use anywhere on that network. IPX would allow 4.verylow to be installed for real, then via 4.medium and 4.high to 5.something via TCP/IP. Only two of that bunch of cards failed to upgrade because of lack of memory.

BOFH: Give me a lever long enough and a fool, I mean a fulcrum and ....

Stoneshop

Re: That would be twatsplaining then

Or twatpaining.

Stoneshop
Devil

How about

slamming the Oxford against the Duden.

With the bit of conslutant protruding upwards out of his collar between them.

Cambridge Analytica seeks data protection assistant

Stoneshop
Trollface

Data Protection Assistant

"Our new login policy requires you to set your password to Correct Horse Bolted Stable"

Cambridge Analytica CEO suspended – and that's not even the worst news for them today

Stoneshop
Pirate

Too mild

I'd suggest banning the Mercer family from any oxygen use.

Stoneshop
Facepalm

Values and such

I take it the values or operations not represented amount to "don't get caught".

Quite

Stoneshop
Devil

Re: All is not how it seems !!!

Emerdata Ltd created by SCL/Cambridge Analytica's Julian Wheatland, with Erik Prince's business partner Chun Shun Ko

And FYI, Eric Prince is the founder of the thugs-for-hire group BlackwaterXe, and the brother of Trump's Education Doofus Betsy DeVos.

Nice bunch of people right there.

Stoneshop
Holmes

Re: OK, that's it!

Nah - it won't last that long. You can hire JCBs by the day.

Well, there will be more occasions where a popcorn-loading JCB will come in handy, because CamAnal has had their fingers in several other processes where influencing voter behaviour was kind of relevant (*cough* brexit *cough*)

BOOM! Cambridge Analytica explodes following extraordinary TV expose

Stoneshop
Big Brother

Re: Facebook here next year?

Few people are forced to deal with mainframes and COBOL and rarely anyone does so voluntarily; those subjecting themselves Microsoft and Facebook are far greater in number.

Stoneshop
Holmes

Re: Proves nothing really

Unwarranted triumphalism is one of those 'commenters' who would dispute the wetness of water if it would fit his agenda of riling up people, in particular people who he sees as promoting wetness as a common benefit.

Stoneshop
Holmes

Re: Tinfoil hat time?

Choose one of:

- explaining the data that is there but shouldn't be

- explaining the data that isn't there, but can be strongly suspected (as implicated by various actions based on that data) to have been there (and shouldn't have been)

Nest reveals the first truly connected home

Stoneshop
FAIL

If your sauna is at 72 Celcius

then it's too fscking cold. 90 Celcius is getting there. 100 Celcius is just right.

Stoneshop

When you turn off the HVAC, the walls and objects in your house get cold (or hot, depending on climate / season). This means that when the system comes back on, it requires more energy to return the house to the desired temperature.

That bit is correct. However, there will still be energy savings because of the lower temperature difference between inside and outside during the time the HVAC is off. And energy loss is proportional to temperature difference across a barrier (walls, windows, roof, floor), so less difference means lower losses.

Stoneshop

What's the compressed air for?

Ever been to the dentist? They run quite a few things on compressed air.

Having a dentist friend has some advantages: no fuss about anaesthetics*, and all those grinder bits that are too dull to use on a patient (there might be some exceptions to that) still do just fine for working on electronics casings and stuff.

* just don't accept that drink afterwards if you're the last patient for the day.

Stoneshop

Speak with your feet

The corporation has the power to do whatever it wants, and you have no say whatsoever.

But that would require the customer to not be complacent (or downright lazy).

Stoneshop
Big Brother

Re: Re. I like the idea of a smart home but I don't want the IoT internet angle....

Yep at least Alexa and Hive are not made by a company that specialises in spying on you.

You sure?

Stoneshop
Mushroom

Re: Abandon hope...

I was wondering if you'd pop the lock just by touching the lock with a 9 volt while the AA batteries were still functional

In a proper design (I know, I know), the 9V terminals would be used to power the lock's logic so that the keypad/RFID/DNA-scanner/whatever can take input again and open the door. And ideally (I know, I know) those external terminals would be protected against overvoltage and reverse polarity.

So your connecting a 9V battery to a still functioning lock would not matter. Now, 240VAC, or several tens of kV from one of those piezo-electric gas igniters, a miniature Tesla coil or something similar, that would be quite a different matter ...

Stoneshop
Boffin

They also have a supply of both mechanical energy and heat energy that are capable of being converted into electrical energy...

That would require flow and/or a temperature difference between radiator and room. If the valve has been shut for a while then both conditions will be absent and you'll have a bit of a bootstrapping problem unless you have some storage element in the valve.

Stoneshop
WTF?

Re: One Ruling System

When they came out with what would be their final system, even the paper for the printer had to be purchased from them.

EXPN.

Stoneshop
Devil

what do you mean you don't carry a 9v battery with you at all times?

No, but I might start to carry them, plus one of these.

I also might want to test them regarding EMP hardening.

As an aside, I expect a lot of people to carry USB power banks. If those locks operate on 4 AA's, so 6V, then a power bank with an adapter cable will probably be sufficient to revive a doorlock with dead batteries.

Stoneshop

So the sooner they start building homes with Cat5 cable run to every radiator, corner of every ceiling, outside door, window, shed, the sooner they can build things that work properly.

When a friend of mine was planning to have a new dentistry practice built, I advised him to run a silly number of empty conduits from a central utility room to just about everywhere to allow for easy installation of whatever might show up on the market a few years on, requiring some form of connectivity (network, power or even compressed air). This of course in addition to the planned power, water and compressed air.

Stoneshop
Facepalm

Re: Nonsense detected

But 72c will cause burns

Ever been to a sauna?

Stoneshop
Windows

Re: Jumpstart

Or do all these smart locks have mechanical options also?

I haven't looked, but I would expect there being a knob* on the inside allowing you to open the door and get out in any case.

* meaning a protruding bit you can grab and turn or slide to open the door, not the person who bought this stuff.

Stoneshop

Re: Jumpstart

to be fair, pouring superglue or epoxy into locks is also and easy way to bugger expensive locks.

Which keeps the lock in the state it's in, usually locked.

Zapping the electronics may leave the lock in a state where mechanical methods can more easily open it (if such would be necessary at all).

Stoneshop
Big Brother

Re: Did you ask Dave what he thought about that?

Now the default is not to sell "something" but sell a "service" that you first pay and arm and a leg for and then continue paying forever and a day to keep it running at full spec.

You can easily see this just about everywhere: subscription services instead of buy once use forever. Software. Cars (private lease). Even home appliances like central heating systems. Just about the only area where I more or less prefer such a subscription is Renault leasing you the batteries for their electric vehicles (and only the batteries). Of course you can put aside that amount of money per month, saving it up for the moment you need to replace them, but if those batteries have degraded sooner than you budgeted for you still have to come up with the moolah one way or another. And as a getaway vehicle for a bank robbery one with degraded batteries is probably not ideal.

Companies want a steady income stream instead of relying on just item sales. Which tends to become a bit of a problem when you're selling durable consumer goods; you can try to increase repeat sales by selling non-that-durable goods instead but then there's the risk that consumers turn to other brands, exacerbating your problem. So much better if you manage to turn whatever it is you're selling into some kind of subscription, especially if that locks the consumer into a controlled ecosystem.

Stoneshop
Flame

Re: Abandon hope...

that would certainly make the lock abandon all hope.

s/hope/magic smoke/

Sysadmin held a rack of servers off the ground for 15 mins, crashed ISP when he put them down

Stoneshop

One of the DEC guys present then regaled us with a story about how a similar delivery had had to be made via a window, there was just no internal option.

One I heard from a colleague in the UK was when an 11/780 was to be moved from the lobby where it had been delivered to a few floors up via the staircase. The system was put on stairwalkers, and a lot of muscle was gathered to power the move. Which went reasonably well until between the second and third floor someone lost his footing and the system crashed. Back down that flight of stairs and through the glass facade of the stairwell. And one couldn't quite say that the director's car cushioned its impact with terra firma very much.

Stoneshop

System delivery

The window & frame had been removed, the system placed in a sling, and a portable crane used to winch it up. It got to 3rd-floor height when the sling slipped... No-one hurt, but after impact the system was only 2/3 the height it had been, as it was taken sadly away back to the factory.

One customer I was assigned to as a contractor had ordered, shortly before I came in, two racks, one with an Alphaserver ES40, one with storage. When it was delivered, the delivery driver found that he had slightly misaligned his truck with the loading dock. So he decided to move away from the dock, then back up correctly. However, he had already undone the straps securing the cargo to the truck, and anyone with a modicum of knowledge of Newton's Laws would realise that an object at rest will remain at rest until acted upon by an external force. And indeed, the racks remained at rest while the truck moved forward underneath them, until the force of gravity got its chance when the tailgate cleared the racks.

Two parallelogram-shaped racks went back to DEC, and a struggle ensued when it turned out that transport insurance, as arranged by some purchase department of the Ministry of Agriculture, was only good for Dfl.500, maybe one percent of the actual value.

I couldn't give a Greek clock about your IoT fertility tracker

Stoneshop

Re: In my day

You had fingernails??? Damn you and your luxury items...

And we had to bring our own mountains too. If we were lucky the group was large enough that there were some to carry the trees.

Office junior had one job: Tearing perforated bits off tractor-feed dot matrix printer paper

Stoneshop

Re: Ah, the "good old days" ...

We had a "burster" machine, with two rotating knives to slice the tractor-feed sides off, and a device to rip off the perforated sheets and stack them neatly.

One of the customers I occasionally visited had a burster/decollator which did the tearing off the perforation by two pinfeed tractors aligned slightly outwards, with the paper itself pinched between rubber rollers. The multiform carbon would then be wound on two spindles, the lower form stacked underneath this part of the machine, still continuous, the middle and top forms being bursted by additional sets of rollers running slightly faster than the first one, then stacked.

This allowed the rotating knives to be fitted in the corridor to the BOFH den.

Veteran NASA probe Dawn: Winter is coming on Ceres (sort of)

Stoneshop

Europe is living in the past (by nearly six minutes) thanks to Serbia and Kosovo

Stoneshop

Re: For those who wonder...

Your boilers would be pretty pointless without a means to store the hot water so assuming you have a hot water tank or a 'heatstore' the solution exists. There is no point in reinventing the wheel, checkout the 'Solar iBoost' or similar devices.

In my part of the world, a hot-water boiler is a tank holding several tens up to a couple hundred liters of H2O, with a heating element (electrical, heat exchanger coupled into central heating, or independently fuelled), so my setup will not lack the storage capacity you think it lacks.

And buying ready-made kit: where's the fun in that? I also note that the Solar iBoost in particular (and I expect equivalent devices as well) duplicates stuff I already have in place, and the clamp wouldn't work with the cabling as present at the point where it's meant to be installed anyway.

Maplin shutdown sale prices still HIGHER than rivals

Stoneshop

Re: 2335 outlets ??

Looks to have been a typo; the article now says "PwC has not yet indicated any timeframe for shuttering the 200 outlets across the UK"