"system to track all of their beer barrels in the UK"
Hacking that with the search term "FULL" & "LOCATION" would be good.
2692 posts • joined 24 Mar 2010
"system to track all of their beer barrels in the UK"
Hacking that with the search term "FULL" & "LOCATION" would be good.
"So it knows *where* it is, but it doesn't know how fast it's going? Or the other way around?"
But if it has a fixed position at time T and then T+x ( where x might be quite small) then the direction and travel are a trivial calc. That's what my hand-held GPS ( 14+ years old I'd guess) has always done.
or is the 'message' going to take rather a long time to reach the average star ?
"Space is big, very big ...............you know the rest"
"Does anyone use Linux on the desktop? </troll>"
Well I'm sitting here in Saas-Fee in Switzerland and I've just used a little GUI window on this Linux desktop to start downloading a number of BBC comedies onto a Pi at home (UK) . After that I'll move them using a GUI filemanager ( using fish: ) to watch here.
I use very long 'difficut' passwords for financial sites etc. generated by a program on the fly from a passphrase. The main site that I have trouble with is loging into Skype where paste doesn't work - however Ctrl-V does !
" I'm constantly amazed that the rest of the world hasn't burned down from electrical fires by now."
Could it be because many places have lots of mcbs &/or elcb ?
In our small (50sq.m) apartment in Switzerland we have 15
in the UK, a pharmacy is more commonly known as a chemists."
Indeed it is, nevertheless it's the pharmacist that dispenses drugs.
Suggest you look at :
"day my local chemist will contact me"
I think you mean pharmacist - otherwise I agree .
"and it can be a pain with sites that use you IP address to identify uses and for Geo-location"
Well I've got a fixed IP address but usually Google Maps puts me in West Yorkshire or near Warwick - neither of these is true
Thought it was :
Windows , Icons, Mouse, Pull-down menus
"worked out how to hack a horse "
Although a certain type of horse is often termed a hack
"12 people get shot in a school and it's the end of the world (which it is) but 3,000+ die EACH MONTH and it's completely ignored."
Difference is 12 people are shot without any reason WHATSOEVER whilst deaths on the road are one of the risks of everyday life (which we should try and minimize) for which we derive a benefit
"Clearly a fellow with a fine shed of delights to work in."
Sheds are called 'stadel' around those parts - although more like a small, massively built, barn.
Our local butcher does a line in what look like small cumberlands pinned with a stick but the machine looks like it is designed for bratwurst or kalbsbratwurst
The other advantage of slide-rules was that it was 'necessary' to approx. the order of magnitude answer - which was good brain training.
"merely a proof that one was in numerous locations at the same time"
Or a cat
"Or 6 pints of beer... "
With two heads on - I assume
I've always assumed that this involve rattling the sabre in it's scabbard. Funny place to put ones nose !
On a more serious note it makes you wonder how many more issues will surface.
"Has anyone found an IP camera that doesn't require an ActiveX plugin to configure, that also doesn't cost too much??"
Well I'd suggest an old Android phone with an app. Or better a Pi with camera running Motion. At client end VLC or in my case ffplay
"And you have to create huge great holes in the firewall"
Solved by ssh tunneling
"Use the Secure Shell on Linux. That is what it is for."
Depends on what you need to do. I usually use ssh but if i want a secure vnc session I then use tunneling for vncviewer
"I recall the Amiga had a multi tasking OS sans MMU."
It did but any serious glitch would crash the whole system (Guru Meditation)
"The real skill is in the removal."
"Right now, you have your choice of at least a half-dozen very different desktop UIs for Linux, so clearly it is far from an insurmountable problem."
AND have them running at the same time.
"I remember arriving in Calais by ferry in the early-1980s. It was lunchtime. French border control/customs were no where to be seen."
I passed through a border about the same time - I think it was Lux.-France. There was a border post but all that was visible was the bottom of a large pair of boots hanging out of the box ( officer attached )
"France has been scanning passports on leaving the country for a non-Schengen country for as long as I can remember"
That's certainly not true at Calais. The recent terror incidents have often resulted in French troops searching car boots (duplicated by security staff BTW) but no scanning passports as far as I can recall. (I'm usually too annoyed by the size of the queue at UK control.)
"issue of "Frontaliers" (people who work in Switzerland but live in France where it's cheaper)"
Indeed when leaving Switzerland via the crossing near Vallorbe at ~0600 I'm always amazed by the number of cars streaming towards Switzerland from what is a relatively sparsely populated area of France. The Swiss have a shortage of all sorts of workers and low unemployment so I can't see this being easily changed.
"Switzerland and France are both in Schengen, the UK is not."
I know all about Schengen - I've been enjoying its advantages for years. My point is Switzerland seems to cope with a free movement in highly desirable country without having to record every in/out. It's basically done another way if you want to remain/work. Until France tightened up security at Dover recently* and UK exit checks were introduced it was normal to drive UK-France-Switzerland-Italy and return and show passports once (at UK border in Calais). Before Schengen most European borders involved cursory checks if any.
*Schengen is very strict border controls at the outer border - Oh yes, even now at the French 'border' at Dover the passports are usually just glanced at if at all
I travel by road into Switzerland via France 3/4 times a year - nobody checks, we have a holiday and return again without checks ( other than UK) . If Switzerland can manage without being completely overrun how come we have a problem. ( We stay in our own apartment BTW so no checks there either )
The flash point of methanol & octane (for example) is about the same (~12C)
"At the quantum level, there is uncertainty as to position, or even the outcome. It seems these cards are modelling that behavior."
Point is they're not supposed to be doing that. Even if the algorithms generate deterministic chaotic outputs that wouldn't explain 2 cards being OK
Well I've got a mixed estate of 8 Pis
1) is a motion sensitive camera overlooking the back of the house, a temp. sensor reporting to pi2 and an in-house web-server
2) is a file server, iplayer server, runs a daemon that controls 4 remote wireless mains sockets and records temp. measurements from around the house.
3) Has daemon controlling external house-lights via a Power MOSFET, has a temp. sensor reporting to pi2.
4) Motion sensitive camera and PIR sensor.
5) Motion sensitive camera, has a temp. sensor reporting to pi2
6) Controls via Pi2 a heater in otherwise unheated utility room, has a temp. sensor reporting to pi2.
7) has 2 temp. sensors reporting to pi2.
8) testbed - at mo' has a Schmitt trigger light sensor tracking dawn-dusk
Very simple jobs which could be combined into a smaller number but would mean swathes of wiring around the house.
Combining the capabilities can be usefull. Just tracked over the last few weeks an area of loft that had an intruder that sounded
too loud to be a mouse. So PIR detector switched on light and motion cameras spotted a mouse and a few days later noted its demise.
"Electric resistive heaters, CPUs and GPUs are very inefficient ways to heat a building."
They are ~ 100 % efficient. Where else does the energy go ? . A desirable use of electricity - that's another matter
"The only realistic option will be a new fleet of subsidised CCGTs, and they will then undermine the case for SMR unless SMR also get subsidies."
Agree entirely. Just a glance at the current load on the grid is quite scary. (OK it's very cold but luckily it's windy). The coal/nuclear contribution is ~40%
"Back in the day, sUSe used to have a lovely screen background for anyone logged on as root into a KDE desktop.
Is it still around?"
Don't know - never log into the desktop as root ! No need !
"It's bad enough auto-mounting by default"
Well it's just box clear/tick in System Settings to enable/disable automount. There are finer grained options as well if you do want to automount something.
What I can't remember because I always have it turned off is what the default setting for a fresh install is.
"Quite the opposite. It's a tool that is more than good enough for both "proper" software engineering and quick and dirty analysis*. "
Agreed. I worked (~2003) for a while, on secondment, with our Computational Chemists and was suprised at the extensive use they made of Python. Mind we had an extensive set of in-house and commercial libraries, tools etc.
"We created computers roughly 30 years ago"
What, in 1988 ? I think I'd have remembered that !
( I was taught Physics to A-level ~ mid-sixties by someone who had worked on the Manchester 'Baby' 20 years before BTW)
"A bit like the current vogue for looking back at old medicines for new applications ....."
I'm not giving away any company secret but doing that was always in vogue. Difference these days is that lots of start-ups talk * about it.
* applies to other industries too
"Well, it's not like I have something to hide. And besides, who would be interested in pictures of my pet/my holiday?""
Well I've not got anything to hide ( except financial stuff naturally) but I do always use ssh to access my systems at home from outside - this is to ensure security so my systems don't become a playground for spammers etc. My system is as secure as I can make it.
"I would think that the "security agencies" would know that any encryption with a backdoor is useless"
It's the same in other areas. I lost count of the number of times I put together very detailed proposals for/against certain approaches to tackling a disease area, going to great lengths to research what was know, list the unknowns, explain the complexities, list the pros & cons and suggest a way forward only for a PHB+2 to dismiss ( or sometimes sanction ) the whole thing after a few moments consideration.
"Those who don't know math are doomed to repeat it."
That also recurred to me
"The UK and many other counties have committed themselves to stop selling fossil fueled vehicles."
I thought they'd committed to 'only' allow hybrids to be sold
"Bugger me! I was blaming my phone as it always appeared "
Well for several months after an update my wife's Android phone clobbered the Netgear router (not the access point.) After much experimentation and searching it was banned. Other Android devices like a Nexus 7 did the same. Even walking up to the house was sufficient as other people had found. It suddenly stopped ( presumably after an update ).
"e. From what I remember the amount of gas trapped in ice is a factor of formation speed, temperature, pressure and doubtless a few other factors not least gravity."
Depends on when the ice formed. The atmospheric pressure on the Martian surface is very low now.(~0.06% Earth and mostly carbon dioxide)
"I don't think the 6800 (6809??) had anything like 6000 op codes."
I was referring to the very extensive set of addressing-modes. which combined with the basic instructions generated ~~6000 op-codes. The data sheet mentions 1464 instructions.
My comment was meant to illustrate that even at the time of the 6809 processor instruction sets were getting rather complex. You could write complex data structure traversing code in just a few bytes in assembler ( The important FORTH word NEXT was just 4 bytes long ). I don't think any compiler would have used most of the instruction set. 6000 was the approx. number of unique op-codes taking into account the very extensive set of addressing modes.
"RISC was originally to get as much on a single chip as possible (by making functionality simple) and thus making things fast, but this is no longer a constraint."
I thought RISC was an approach supported by measurements of actual operations in real program execution which supported the idea that compilers usually used a limited set of 'simpler' instructions., and therefore the masses of increasingly complex ops being added took-up too much silicon for their limited usage . ( Even the hard-wired 6809 had ~ 6000 op-codes from memory). I also remember a BYTE article describing one of the earliest RISC cpus being designed by students.
"So I'm not sure that Tumbleweed supports this, yet."
Well I get :
dmesg | grep isolation
[ 0.000000] Kernel/User page tables isolation: enabled
and CONFIG_PAGE_TABLE_ISOLATION=y in /boot/config-4.14.11-1-default.
Booting fine but I am in a VM for the moment
"There's absolutely no point in having a referendum if you're going to ignore the result, so it was morally binding, if not legally so."
There is if a gov. is looking for an indication of strong/weak/marginal support for a proposal. In any case almost all ref. require a significant margin esp. for such a major change
"Because, if the words "apt-get" or "go to the command line and type...""
If you don't want to use the command-line use a distro where you don't have to - there are plenty available. Ditto with updates
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