You need a chaos monkey: https://github.com/Netflix/SimianArmy/wiki
164 posts • joined 13 Aug 2007
You need a chaos monkey: https://github.com/Netflix/SimianArmy/wiki
I'm a sysadmin. All I want is to have stuff work, and focus on the interesting bits.
Working with the developers to make sure what they produce and what I need are compatible is the best way to do that by far.
We have that system on one of our more secure areas. It actually works fine until there's a fire drill when everybody leaves through the emergency exit, and the system then refuses to let anyone back in because as far as it's concerned they are all in there already. Even worse is if some twazzock put the door control system console inside the secure area.
We were only saved by the fact that someone had been off site for a meeting and came back so everyone could tailgate them in and get back in sync...
64% ought to be enough for anyone.
The answer is right in front of them. Spotify, Deezer, Jango all find that with their short term lower price offers they get a lot more people signing up.
I listen to Deezer while I'm driving to work. I hate all the ads and popups(?) they put into the free service, and when they started their recent offer I took it up. But it isn't worth £10/month to me, maybe £3 tops.
As has been the case since CDs first came out, they ask too much for the market.
It's easy to NOT end up with 45 OS variants and versions.
It just requires management to plan in aside the time and budget to port your applications to the choisen few and to keep them up to date as time goes by.
From what I've seen in bug business it's quite possible the higher levels *deliberately* didn't want to know about it. "Don't tell me how you did it".
Just Do It!
Why not, after all even if the FAA get upset now everyone involved will be long retired before the next mission after LOHAN at this rate...
If people read all about what it's like over there and still decide to go to substantial trouble to voluntarily go, why not just let them?
We should be concentrating on not letting them come back...
On the other hand it's exactly because it's so dangerous that controlled use of it is effective in helping him.
He's not wrong, but like all things there's a right time and place...
I regularly use a dual monitor setup with four desktops (for which I use Desktops.exe from Sysinternals - it's simple, free and it works).
It's really useful to be able to do a complete context switch from a sysadmin desktop to a development desktop to a testing desktop to a writing reports desktop in one click, with a pile of windows open on each.
More screen space = better.
Correct, *but* they do use spread spectrum of various flavours all over the 2.4GHz band, so a broad spectrum wifi jammer would still screw them up. Also the video feed back to the FPV goggles (if they have one) is quite likely to be 5GHz so they could still watch it crash ;-)
,,,swearing drunkenly through a swanee whistle.
You know it's true.
If you want huge but are happy with SATA speeds, go for four 1TB mSATA disks on one of these http://www.addonics.com/products/ad4mspx2.php.
mSATA is a small format but comes in pretty much the full range of SSD sizes and makes. Infact I bought a 60GB mSATA card from Fleabay for £37 with a £12 mSATA to IDE adaptor so I could fit it into an old laptop, makes a huge difference.
I just bought an mSATA to combined USB and SATA adaptor card from Dealextreme for the price of a bag of fish and chips too, which gives me 140MB/s on USB and way more on SATA (haven't measured it yet), things are getting ridiculous if you don't mind mixing and matching a bit.
On my budget I'm aiming to go SSD for boot, programs and temp space with spinning rust for big storage. 95% of the benefits for a fraction of the cost. For now.
Edit: The penalty for running a bit behind the curve: mSATA is already going obsolete, M.2 has taken over. BUT that usually means lots of good clearance deals so if you're a penny pinching non-Luddite like me you could be in luck.
At the time of the Dunblane Massacre and the resulting kneejerks I was the secretary of a pistol club. I had 4 semi-auto pistols, two revolvers and two single shot target pistols and up to 5500 rounds of .22LR ammunition in a sturdy cupboard in my garage.
They all had to go, the better ones to a club with much better security (fair enough) and the others were handed in at the local Police station to a startled civvy on the desk. And then the extra .22 ban came in so even the good ones got destroyed.
So now only the criminals have easy access to guns.
But anyway, about handing them in: when you have a Firearms Certificate absolutley everything you do with transferring guns or ammo has to be marked on it. If you buy or sell a gun it has to go on the FAC, to buy ammo you have to show your FAC and convince the gun shop owner that you have space in your allowed quantity to buy it. If you get a surprise inspection (and they do happen), and have anything different to what it says on your FAC all your guns are destroyed (with no compensation), and you could be in serious trouble. NOBODY would ever hand in a gun without getting their FAC stamped and signed, that would be lunacy.
'Plug and pray' is indeed very old but it's nothing to do with the current context. It was about how USB drivers were very hit and miss for a long time, needing installing for each individual port, being very OS specific etc.
'Plug and prey' refers to maliciously altered USB devices that actively prey on whatever system they are plugged into.
It would be a victory for the courts if they allowed the banks to clamp down on it BUT also introduced a mandatory banking service so they HAD to provide banking services to anyone and everyone at an equivalent cost to the mobile money that's there now.
If it's a digital clone then you're right, there should be no difference, the CD and CD-R should be identical.
But if it was a CD and it was ripped to a CD-R in the common way of converting it to MP3s and storing the files on the CD-R then they are very different.
We don't have enough information.
Talcum powder would be my first choice too. If you're feeling spendy then car trim restorer/protector like the armourall stuff can work well too.
Inkjets - SWMBO does a lot of craft stuff which involves printing stupid amounts of stuff - full page patterns as well as inidividual design elements.
I bought a reasonable Canon printer and a continuous ink system from EBay which feeds ink to it from a set of bottles through silicon tubing. Over the last two years I've had four sets of 5x100ml/colour ink bottles through it at about £35/set, and the only issues are that I occasionally had to re-prime it (it works using the syphon principle, no pumps or moving parts). Wear gloves and don't mess with it over a carpet you need.
If you print a lot (at least several times a week) then it's well worth giving it a go. 500ml of ink in individual cartridges would cost you several hundred pounds...
It's nice to see all the gadgetry on show and the details of the engineering decisions, but it also feels like the KISS principle went out of the window a long time ago.
There are lots of things in this project that would make a substantial research task for an experienced hobbyist on their own.. I just hope it all works out in the end.
When is the end anyway? Is there a planned launch date?
Wolf packs will require depth charges...
There is a newish design of quad that is designed for extreme stunt flying and 3D racing - for instance a course marked out down the side of a cliff...
Unlike normal quads that use a variable speed motor per rotor and fixed pitch props, the Stingray 500 uses a single larger motor with belt drive to each corner (well proven in 4x4 racing buggies) and collective pitch on each rotor.
It gives it amazing manoeuvrability compared even to acrobatic quads. Want.
bash is fine.
But on Windows, bash via cygwin or whatever just doesn't have the power it has on Linux, because Windows just doesn't work that way. Linux command line admin is all commands taking strings joined together with loops and pipes, but for Windows you need commands taking OBJECTS held together with loops and pipes. That's what Powershell gives you.
And it was designed by Linux-y guys, so it will be more familiar to you than you think once you get into it.
A Powershell clone would be useless for Linux, for the same reason.
Use the right tool for the job.
Well at least with all that heavy paint and vinyl it won't flutter down like the first one did...
I wonder what it's glide ratio will be once the rocket cuts out and it gets back to a thicker atmosphere?
As I understand it, Microsoft has made their AV definitions and fixes available for free to ALL other AV suppliers. So if any AV supplier can't beat the MSE results then it means they've basically done absolutely nothing.
If it was me I'd be tempted to have a barge or flat-decked cargo ship in place at the expected landing area, then if the approach was going well tell it to land there - otherwise you could choose/be forced to miss and land it in the sea anyway.
Seawater and complex systems are a bad mixture, why dunk it if you can help it?
It's a weird thing with planes, especially gliders, which this essentially is - after a looong balloon phase and a few seconds of rocket powered terror, anyway. Weight makes them go faster. A given airframe will have a certain glide ratio, i.e. it will go a certain distance forwards for every amount it drops. Within sane limits this ratio is constant, so if you make it heavier it drops faster, therefore it has to fly forwards faster. With radio controlled gliders it's common to add lead or even tungsten ballast to really get the weight up. Full size gliders use water so they can easily ditch it.
In this case there are other factors that come into play. The vinyl will make the surface smoother which will help especially at very high speeds. The weight becomes an issue when you have to lift it with a balloon to ridiculous heights. But it also makes it tougher - I have a foam flying wing covered with vinyl which is super tough and super fast, at the expense of needing a really good day to go gliding.
I just want to see this thing FLY!
"PS: The dichotomy of not liking my widescreen laptop and liking my widescreen TFT, I can rotate my widescreen TFT into portrait mode and get ungodly number of lines (well, 120+) on the screen"
I managed to get dual monitors for all the developers by showing the boss something that he could understand - an IBM report saying that programmers were 15% more productive with dual screens. Getting that more work from you for only a couple of hundred pound a head, for monitors that could be nicely depreciated against tax makes business sense.
We got crappy widescreen monitors as well, but if you're willing to put shiny and conventional aside (and what true techie isn't?) then you can either use both vertically or even better one landscape and one portrait then use which ever layout works best - vertical for coding, wide for browsing.
It looks daft, but it works brilliantly.
"Maybe Google should make it so that only the GPS function can be active above a certain speed... "
That would be a pain if you were a passenger. Or on a train. Or in a self-driving car...
"Still flying the paraglider though: model planes scare us and we do our best to keep well away."
I wish... there are lots of good paragliderists, but there are a minority who seem to feel entitled to fly wherever they like whenever they like, even at slopes where there are long standing agreements between model fliers and the local PG clubs. The same minority also seem to spend a lot of their waiting around time getting the nerve up with the help of funny smelling fags...
Human safety comes first obviously but having to risk crashing an £800 model because some knob has deliberately decided to keep flying across directly in front of the RC slope is painful. Frankly with a few kilos of pointy nosed carbon fiber model doing unpredictable aerobatics at 100mph+ I'm not sure I'd want to invade the RC airspace, but then again I wouldn't risk flying a PG either, so maybe it just enhances the 'fun/danger' aspect for them..?
When we co-operate, it can be very good. I'm always happy to scout around for thermals then leave them to the PGs if they are having trouble finding lift, and many PGers are happy to work together at the meeting of the airspaces. But some PGers seem to be on a power trip from the get go and cause nothing but trouble and bad feelings.
Some modellers are as bad probably, but then again PGers seem to be mainly 30-40ish well-off blokes, whereas RC gliderists are largely 55+ retired blokes. Sometimes obnoxious certainly , but not really so aggressive.
"I remember seeing a study from a top US university some years ago that said the only difference between a CEO (or other top executive) and a psychopath is the methods they use."
I found that this explained it all quite well for me...
The red dots are the moving objects against the static starfield.
I guess in this image the fast thing is asteroid (872) Holda, the red streaks are earthly satellites. There are similar images from its earlier incarnation on their website.
Where would you get your source DNS entries from? DNS is a hierarchical system, running 'your own' DNS server only gets you a cache of things you've found from other DNS servers, or sites you manage yourself. And if unfiltered DNS is blocked, you won't be able to build your cache.
Even if you were to collect it all 'now' then it would go stale over time.
Some DNS suppliers may well offer other ports such as the 5353 mentioned above which would help, but if you had alternative suppliers then why run your own in the first place?
I saw an IRC transcript on bash.org about that - someone fell for it, then came back and complained. In a masterpiece of trollage, they convinced him he must have hit Alt-F5 by mistake, and he should be sure to hit Alt-F4 this time... which he duly did. Again.
Nearly as good as the 'hunter2' one.
We can't have those on the tills because it's been snapped up as a separate 'business opportunity' by Coinstar: give the machine all your loose change and it will deduct 8.9% then print you a voucher for the rest.
8.9%!! If anyone has a ton of small change to handle I'll count it for them for a measly 8%. Can't say fairer than that!
Go easy with the paint, though: its heavy and will really impact Vulture 2's performance
Seconded. Paint is heavy. And a light sanding would probably be a good idea, although given that it's printed in nylonish stuff I'm not sure how well it would work?.
For good solid colours and added strength, rc combat gliders use coloured parcel tape - it doesn't weigh much (especially if it's only a partial covering, e.g a red checkerboard) and as a bonus could be removed and redone differently for the next flight - reusable near-space vehicles wahey!
Oh... and test fly it BEFORE you paint it. Otherwise it'll just have all the corners showing white and any replacement parts or repairs (although hopefully not) won't match.
Not green, you'll never find it after it lands, even in Spain.
Nothing very complicated either - I've had a nice realistic Zebra scheme on a much bigger glider than this and it totally disappeared into the background, both in the sky and on the floor.
Dayglo orange (or Register Red at a pinch) with black tips would do nicely for me.
You're not allowed to ask about that, I suggested flight tests a few times and just got sarcastic replies and down votes.
Which is a shame because I have lots of experience of test flights...
To be fair last time it was 'wait and see' so now I'm waiting.
This link explains it very clearly.
The crucial thing is that if you have a good idea and tell everyone about it publicly then in most countries other than the US, you have torpedoed yourself. In the US you have a year long grace period to patent it after that point.
It's being done - Gemasolar in Spain uses BIG well insulated tanks to store molten salt at 550C+overnight and generate power 24/7. Full tanks can run the plant for up to 15 hours with no sunlight at all, or just top it up on dull days to keep the output at full power for much longer.....
Although the capital cost of solar will fall further, for it to be used externally the panels and supports use quite a bit of material. Unlike chips, there are fairly high transport and installation costs.
Is there any reason not to make generic roof covering solar panels, instead of having layers of tiles, insulation, brackets, rails, framework and *then* solar PV panels?
Simple interlocking weatherproof insulated panels designed to be slapped on a roof by your average roofer then plugged in by a domestic electrician would be a massive seller as far as I can see - but the nearest I have seen is hugely expensive tiny solar tiles designed to be installed in amongst normal roof tiles.
There's nothing at all to stop some of the panels being for solar thermal (water heating) instead of/as well as PV either.
I'd buy a roof-full.
I'll be interested to see how it glides, especially given that it looks designed for a high cruising speed. Maybe a KNICKERLASTIC bungee launcher could be useful?
Where is the CG on it? Looks like it would be near the front of the main wings, where they meet the fuse?
One thing to watch out for is that the failsafe which kicks in when the 2.4GHz kit is out of range doesn't do anything nasty to the autopilot, like turn it off. DAMHIKT.
For servo arms and pushrods I favour making an L bend and threading the bent bit, then tapping the rod into a too-small hole in the arm. Because the arm only moves over less than 180 degrees it cant come unthreaded, but there is very little slop and a lot of resistance to the end pulling out sideways. I've tested this on a lot of combat wings - it can take a beating and stay attached.
With a bit of your low temp grease it should be immune to freezing too, which a ball joint might not be.
"For instance, in the last year or two there's been some debate whether Voyager has actually past the 'edge' of the solar system into interstellar space or not."
Well, to be fair that isn't anything to do with knowing where Voyager is, or even where the edge of the Solar System is. It's to do with 'what' the edge of the solar system is. And do you even need to know that to know where the centre of mass is? Isn't it just going to be the centre of rotation of the combined bodies making up the solar system?
You're right, well spotted. That should work well once it has enough air to bite into, and the canards do look big enough to work.
I'm looking forward to seeing the test flights...
What are the plans for that?
Does it really only have rudders?
I know it already has two control surfaces more than Vulture 1 had and that's laudable, but just rudders seems like a bit of an issue if that's the case. Or does it have elevons as well (in which case rudders are a bit excessive...)
Has anyone built a foam mockup of this to check how it flies, where the CG should be etc.? It shouldn't be too difficult to do as an RC model and could easily be tested at high speeds with a ducted fan motor or even hobby rockets.
Have a look at PolyMorph, plastic granules that you can melt down in warm/hot water then form by hand. Tough as Nylon when it's done, but can be melted and resued many times.
Places like Maplins sell it in the UK.