Posts by bombastic bob 10283 publicly visible posts • joined 1 May 2015
"F is one of the most dangerous element around in chemistry."
in most of its forms, yes. In some cases, like flouride toothpaste, extremely useful and life enhancing.
In the wafer fab world, an HF exposure (even just a light splash) is one of the WORST kinds of industrial accidents. And you need HF to etch silicon.
"Environmental impacts should be less than RP1-LOX"
Why would THAT be? Carbon content? I hope you do not actually BELIEVE in carbon-dioxide-based "Climate Change"... So much evidence against it. Tony Heller is a good starting point.
(Most of the Earth's carbon is in the MANTLE, and it regularly gets spewed by volcanoes, in amounts WAY higher than human activity - I doubt a few RP1 rockets will even matter)
Foxconn (as I recall from a few years back) has competent engineers, some of whom I met and talked with back then.
There is NO doubt in my mind that they would all vacate Taiwan should the CCP come rolling in ( if they had the chance top do so).
India would be a nice close location to vacate to. (Just sayin')
What I *REALLY* hope this means is better (more stable) supply chain NOT sourced in China, to supply the rest of the world. We would ALL benefit from THAT.
"they're spending more time spinning in circles than actually getting anywhere."
This is DEFINITELY TRUE in the Micros~1 'Windows World'. I do not mess with RHEL much (other than light experimentation with the clones) and so I just have to assume that this is also true for IBM/RH.
What if a bunch of RHEL customers would be willing to pay a REALLY CHEAP license, either one time or subscription, that gives them "no support" (like using an RHEL clone) with the benefit of having the actual RHEL software (and not a clone) ?
There is no need to be greedy and demand ONLY the BIG BUCKS license unless, like an insurance company, they expect to drive revenue from customers who do NOT use the support...!
Then, just to have even MORE fun, they could offer users of the clone versions an option to get support at the RHEL support price. Some might want that.
The purpopose of the 1973 supersonic ban was essentially THAT (political, not technical). In the 1960's I used to hear a lot of sonic booms from aircraft operating near Santa Barbara, CA. They were probably military aircraft, researched by Hughes Aircraft. Needless to say, cracked windows were too common, and people complained a LOT. Then a lot of environmentalists said it was harming Condors (which it probably was, I used to see them occasionally flying over the house) and finally gummint stepped in and said "OK that's enough" and also semi-banned military aircraft as well [only allowed if there is a really good reason to make a sonic boom, in other words].
So I suppose the new standard ought to be revised, such as "no sonic booms above THAT sound level" and maybe some approved designs over populated areas or places where wildlife might be severely impacted.
I'd equally support a web designer or cake maker who refused to make a product that celebrated or priomoted a numher of things, from racism to communism to evil dictators to people that illegally stick those flourescent green signs in the middle of the road because their kids are playing in the front yard (never mind telling them to stay out of the road which is what my mother did when I was 3-4, they have to literally bully everyone else into being just as unreasonably paranoid about THEIR kid, and disrupt the world with their passive aggressive bullying, but I digress).
There are a LOT of disagreeable positions that an artist or craftsman might not want to do a creative work for. It's just that some ideas/beliefs/behaviors are more "special" than others.
(I was thinking of 'Animal Farm' when I wrote that last part)
NO issues? Not like ADWAITA or systemd or pulse audio or any of a number of POETTERING brain farts are potential "issues", right? *facepalm*
(I also prefer dpkg-based packages - it is an easy system to master if you wanna re-distribute modified or patched versions of things)
I've given my OK nod to Rocky Linux for testing with something similar RHEL and CentOS though, but not as a daily driver for sure, only because setup is simple and I might need to test things on it. But that is about the extent of how far I'd go with something derived from RH.
Would you prefer something 2D FLATSO FLATASS like Gnome+ADWAITA ? Or whatever the hell KDE became?
I think a nice retro 3D Skeuomorphic look is both REFRESHING and SUPERIOR !!!
I'll still use Mate with "TraditionalOK" though...
(I really am SICK of phone-like desktops and 2D FLATTY Win-Ape / Win-10-nic TIFKAM look - and I certainly hope THAT is NOT what the authors think of when they say "polished")
If not for Mate and Cinnamon, I'd really consider switching to GSDE. I hope it shows up in Devuan and Ubuntu-derived soon (if not already)
The actual L2 isn't stable
So regardless it will need maneuvering fuel and to have some kind of de-orbit plan once it runs out.
(I am pretty sure they figured this one out already)
I understand most Lagrange orbits are often of the 'spinning a weight on a string' (aka 'halo orbit') variety [or similar]. Some have very unusual patterns to maintain stability.
Wikipedia has some interesting info on Lagrange points.
1. Separate I and D spaces
Harvard architecture. Has advantages AND disadvantages. But Intel memory management has read/write and read-only page flags so it is pretty easy to make code memory "not writeable" already.
2. Use the MPU to enforce per-process limits
easier to do using task switching parameters and a reasonably-written pre-emptive scheduler. YMMV on RTOS
3. Hardware assist on privileges (not just user/super but > 5 levels)
why does hardware need to 'assist' with that many? Typically hardware has separate system and user stacks and/or page tables, even entire register banks. But normally, just 2. And each application's address/page table is different (i.e. separate address spaces) already. Just why do you need > 5 when you already have things LIKE separate address spaces for applications?
Again, scheduler params and the existing password/group security (Linux/BSD/UNIX/etc.) can manage this kind of multi-level security with a reasonably-written pre-emptive scheduler., though I understand there are some ACL mods for Linux available to extend this.
well there are warnings you can enable in llvm-based C/C++ compilers that find a lot of things .
Other C/C++ tricks include use of strncpy, snprintf, etc which have buffer checking built in, as well as avoiding more obvious things, by sanitizing "foreign" (and even internal) data and structures, AND including (but not being limited to) the simple fix of 'fgets' vs 'gets' on stdin.
Custom APIs with output to buffers should ALSO do size checking and have the output buffer size specified. The simple things.
No need to implement garbage collection memory control, nor use Rust to fix this.
I have somewhat recently had issues with outlook mail.
One of my e-mail addresses is an old MSN addressw, but I occasionally use it for a couple of things. A couple of months or so ago it suddenly gave me a boatload of login errors and would not work anymore with a POP3 client. After communicating a few times with MS they made it possible for me to use it as web mail, but POP3 was still broken.
After researching an obscure solutioin stuck out - change the password (or reset it or similar).
I have not yet tried this but I suppose I oughta. In the mean time MS insists that there is no problem with it.
Thought I would mention this.
It's pretty sneaky.
I agree with that part. Some "bright bulb" l[aw]yer must've cleverly thought up a new loophole, and now they wanna test it.
It is no doubt that this move was prepared for, and the surprise 'attack' leaves the other distros wondering what just happened.
The only way to counter a surprize attack like this is to do the unexpected, perhaps even deceiving IBM/RH into doing something that puts them at a disadvantage.
Not sure what that is, though. They have a head start. Might take a while.
So aside from open source stuff (which must have source made available if it is modified) what "Secret Suce" are they offering that is worth the license cost?
RHEL could fix all of this right now by publishing everything that is NOT proprietary in any way.
At that point, CentOS-derived distros could "sync up" the published source, and do compatibility tests/edits with the rest.
Jut a thought. then it's back to the way CentOS *USED* to be, but with a different distro name. Rocky, maybe?
oompressive stress is a bit easier to deal with than tensile (ripping apart) stress.. This is one of the principles behind pre-stressing structures.
However, you get certain areas that still have tensile stress on them, and this is where failures happen.
* bending inwards of unsupported surface sections
* telescopic compression [most likely this happened]
* seams for things like hatches and cables.
The design has to be a compromise between weight and bouyancy, where you can drop weights to surface in an emergency.
If I might predict what happened, it was a telescopic compression of the 'people tank', starting at a point of stress that had been cycled too many times going to and from the Titanic wreck.
And it would have been rapid, quite possibly causing a diesel explosion of everything organic that was inside - plastic, paint, people, ...
Probably the window and nose cone were found intact for this reason. But the carbon fiber stuff would have shattered. [In the case of a metal sub hull, it would look a bit like a beer can that you stomped on the top of to flatten it)
A readup on the USS Scorpion and USS Thresher accidents might give a perspective on what happens at crush depth...
makes sense - super-strong materials are often brittle, and brittle fracture is both rapid and catastrophic.
Recently had a cheap handle break off in my hand from brittle fracture, at a somewhat bad time. Quick action prevented it from causing a minor disaster. Did not really need that, yeah.
[think 'breaking glass' when you think 'brittle fracture']
just some perspective from an X Navy submariner...
Pressure is around 1 psi for every 2 feet of depth. close enough for estimates.
12,000 feet would be about 6000 psi.
At 400 feet, a water pressure of around 200 psi is higher than a typical fire hose. So water coming into the people tank is strong enough to knock you on your ass at 400 feet.
A pinhole leak at 6000 psi would probably "rip itself a new one" as the high velocity water would be strong enough to literally inject you (like one of those pneumatic hypodermic vaccine thingies) or cut body parts off. It would be supersonic so you would not be able to hear it. Chances are it would quickly become a catastrophic failure, in which case the people tank would rapidly pressurize, quite possibly fast enough to cause a diesel explosion involving anything organic inside. High pressure would instantly dissolve all gasses and, you guessed it, if the sudden pressure did not kill you there would be no air to breathe. And it would happen so fast that you wouldn't even be able to say "oh crap".
The sub is made of titanium and carbon fiber. Titanium can be brittle and I do not even know whether the cyclic stress of going down and up would in any way cause stress cracks or work hardening in the material.
Safe to say, not very safe.
I am thinking of a movie in which Steve Maatin's character had to write individual checks for $7.01 to millions of people, and you see him going..
"Pay to the order of... Jim Smith. SEVEN DOLLARS AND ONE CENT!!!"
"Pay to the order of... Harriet Jones. SEVEN DOLLARS AND ONE CENT!!!"
Couldn't you just unplug them?
depends on where it is located... (which reminds me of a line from "Deadpool" where he describes where his 'off switch' is located - "Or is that the ON switch?")
I think that there ought to be a control panel somewhere with keys in it that will cause the AI power supply fuses to blow if both keys are turned simultaneously, forcing the system into manual override.
There are protection circuits known as "electronic crowbars" that could work for this purpose, forcing inline fuses to blow by (temporarily?) shorting out the power.. A single SCR (and a separate control line to drive it) could accomplish this. [I'd make use of an opto-isolator in there someplace)
"6) I ask how to properly reconfigure so the things work.
Generally it will have something to do with printing... on the day you REALLY need it!
Windows 7 works with my printer. All Linux and FreeBSD boxen on my network work with my printer.
But a Win-10-nic VM (that I had to use to run tax software this year) does NOT. It will not scan from it either (it's an all-in-one fax/scan/print unit).
So I printed 'required forms' to PDF and used Atril (on FreeBSD) to make the hard copies. For scanned stuff I made the jpeg file on FreeBSD and copied to the Win-10-nic box and then opened it within the tax software (something you print, sign, and scan for filing basically).
Micros~1 does not seem to care much about printers. Nor scanners. Not any more. If yours is "too old", even if it works perfectly, a broken driver may be in your "update future" because "something changed" instead of being properly fixed.
I occasionally write MFC applications that run on 7. They seem to work on 10 as well, no problems noted. wxWidgets is very MFC-like in a lot of ways. I have run the exercise a couple o' times to take an MFC application and turn it into a wxWidgets application [takes effort but not THAT much].
I refuse to use the "new, shiny" [which has devolved into a polished turd] "[CR]App SDK" and UWP and TIFKAM in general.
Doing it that way works, of course, but you forgot to mention the various incidents of arm-twisting and "Are you REALLY REALLY REALLY sure you want to do this" kinds of prompting along the way.
I have only ever done this. I never set up a Micros~1 account, not even for the admin user. It's all test VMs (with 10, 11 still have not done in a VM) anyway but I *still* do not want a "track you everywhere" Micros~1 login.
having UI design on embedded systems being one of my least favorite tasks, and doing cool device control things being a LOT more interesting, I'd have to conclude that UI design (I never figured out why anyone calls it 'UX' unless they are from Marin county, related light bulb joke below) doe not require nearly the talent nor competence of "other kinds of coding". Or, how a kernel + device control C programmer like me can easily do the UI design also, given a search engine for docs and "how do I do this in XXX", but the converse is most likely NOT the case without a lot of low level coding experience.
That being said the UI with a web interface can be the fastest and simplest solution, especially for an RPi with a touch screen in 'kiosk mode'. The hard part is the architecture on the system side, aka how do you turn button clicks into "things happening". Lots of solutions for that exist, with PHP 'shell_exec()' being at the heart of it.
If you specialize in UI design you should probably learn how to do OTHER things too, from SQL to device control. An RPi or Arduino can help with that. Design a vending machine maybe? Or a retro game console? You would learn a lot of useful things, and learn where to get the necessary parts.
At that point you would be hired to do the harder stuff but could assist with or even take over the UI part later (or design the glue that makes it all work).
Light bulb joke: How many people from Marin County does it take to change a light bulb? At least 3. 1 to change the bulb and the rest to "share in the experience"
(which reflects what I think of the term 'UX', yeah)
had to look it up
https://en.wikipedia.org/wiki/Dunning%E2%80%93Kruger_effect
"poor performers have not yet acquired the ability to distinguish between good and bad performances."
Sounds about right to me. Most likely cause: Too many years of "positive re-enforcement" instead of BRUTAL HONESTY.
'Coffin dodger?' First time I've seen/heard THAT one!
(Back to dodging coffins and learnin' these young whippersnappers a thing or two)
[you young whippersnappers wouldn't know a proper UI if it bit you on the nose. in my day we had 3D SKEUOMORPHIC interfaces where buttons look like buttons and text was READABLE! Not this 2D FLATSO FLATASS bright white and light blue unreadable crap with 90% of the screen real estate wasted and NOT EVEN SHADOWING EFFECTS so you have to search for where to click the mouse EVERY! STINKING! TIME! Why, I oughta... *grumble* *gripe* *rant*]
when you do a LOT of "local web server" stuff for development or whatever other reason, DNS over HTTPS is a SHOW STOPPER. *MUST* *TURN* *OFF* !!!
The local DNS then gets to decide what 'http://thingy/' means. On my network it is likely to be an embedded system with a web interface that I am developing a touch screen UI for. [it is extremely difficult to troubleshoot such an interface on the touch screen itself, so I use a browser on a desktop sized to match the screen]
You would think DEVELOPERS would HAVE A CLUE about such things. Then again, these "non-old" devs keep cramming 2D FLATTY FLATSO UIs at us, remove features that we use, etc.
I typicallty use T-bird because of ONE specific feature: "view as plain text". HTML e-mail is *EVIL* and should be *REMOVED* from the internet.
And "web mail" interfaces *STINK* *ON* *ICE* !!!
Why must the "Solution" to these [rectally extrapolated] "problems" *ALWAYS* *BE* something that involves:
* Heavy-handed government control
* Some kind of rationing
* Loss of freedom
* Lowering of living standards
* Increased cost / Lower wages
* Higher tax rates (especially for those trying to BECOME 'the rich')
* Socialism/Communism
That much should be a 'red flag' that maybe, JUST MAYBE, we're being LIED to, and it's REALLY just *TYRANNY* trying to take over...?
why not just drill for oil and make jet fuel?
Hydrocarbon fuels have a MUCH better energy-to-weight ratio than batteries made from the lightest metal in existence (Lithium).
And without saying much else on the topic, man-made CO2 is not causing AGW or AGCC or whateve (in my bombastic opinion at least).
So having an electric airplane is "interesting but impractical", and GUMMINT MANDATES to do the impossible simply remind me of Arthur C. Clarke's "Superiority"
Meanwhile the CCP will continue burning as many fossil fuels that they want, even at levels that exceed the rest of the world. Xi Jing 'Pooh' is a chemical engineer. He knows the truth.
using a new data type for copy/pasta would help with this. Render as new data type when copying/pasting passwords for example, something that has a DH key exchange in it...
If it were a standard this would be nice. X11 clipboard can theoretically handle any future data format. Very flexible. Just need to document it and get applications to support it.
NOTE: I have a script that decrypts a key for github where I enter a password, then it goes onto the clipboard via 'xclip' so I can 'git push' etc. and it seems that after a while the clipboard contents just 'go away' on their own, but you can always copy/pasta something else in its place to 'secure' it
Is it time for the X.org project to be TAKEN OVER by X.org fans, and *NOT* "Wayland Cultists" ??
Just a thought...
I favor just fixing the bugs, extending features where needed, MAYBE go to X11R8 to address performance, and MOVE FORWARD with X11.
[certain legacy features could be wrapped in a 'legacy library' without losing 'the new stuff' nor impacting performance]
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