1567 posts • joined 8 Oct 2009
Re: Avast, there
I fail to see how anything novel could be introduced into this basic premise.
WiFI, tablet, application, Apple.
Re: Indeed, and it gets worse (not really)
The USA never dug a hole for themselves
Rocket engineers don't dig holes. In their field of endeavour, holes tend to appear semi-spontaneously, accompanied by sudden loud noises and impressive pyrotechnics.
The root cause may well be human effort, like the desire to see whether some concoction with lots of double-bonded nitrogen and such makes a good propellant, or the way a control circuit is wired, but stating that rocket engineers are the ones digging holes there would be similar to saying Bomber Harris was digging holes all over Germany during WWII, i.e. only methaphorically.
Re: Hollerith cards in the pocket
Paper tape can hold ten bytes per square inch, which at 0.1mm thickness would result in a data density of 100 bytes per 64.5 mm^3, or roughly 1478MB per m^3. So that's 709 m^3 for a terabyte, a cube a little under 9m each side.
And it's silverfish you need to guard against.
Re: 1000 years?
If you didn't have to migrate your data because you can still easily read it, use it, have it supported with no special device or service, didn't take up power or cooling, why would you migrate? This is the media I'm talking about.
You forgot one thing: physical storage. Every storage location can only hold so much stuff (and stuff with data on it tends to require qualified storage locations), and if you're running low on space it may well be worth it to migrate if every box of storage media now can hold four times as much data as before.
Re: 1000 years?
Please READ that article by StorageBod. He does know what he is talking about
Err, migrating a petabyte worth of tape data using only two single drives? I assume that's just for illustration porpoises, otherwise it'd just be daft. Which would then also hold for your statement that he knows what he's talking about, unless you left out a negative there.
If you have a tape collection that size (1000+ LTO3 cartridges of 3.58 million cat pics each) you don't have just a single tape drive; the very minimum is a two-drive multicartridge loader per technology. The problem that someone is blocked from retrieving data from a tape you're not currently handling also disappears as soon as you have multiple drives, although it will temporarily slow down the migration process.
Re: M-Disk: 42,000 pictures of cats
or 42K pictures of your cats.
Elsewhere on their site it says:
Using estimates with average file sizes, each M-DISC™ DVD:
Holds up to 8,000 photos
Holds up to 1,200 songs
Holds up to 240 minutes of video
Holds up to 100,000 documents
So, it apparently takes just over 5 cat pictures to comprise a photo
I need glasses
A good day for privacy as invisble.im also reveals its approach to untraceable chats
First read that as "untraceable cats".
Re: Predictable authentication codes?
With the ones I have (different Dutch banks) you need to enter a device PIN to activate it, then the 6..8 digit number the bank presents to you. From which the device generates a response code which you need to enter into the web page.
Those apparently predictable codes look like someone's done a cheap version of an RSA token
Re: Picking the nit...
Also, "world" in this case being limited to Europe, Northern Africa and those bits of Asia west of Moscow.
Re: With such a low chance of success for a high cost mission
IMO, the better option would be not to send multiple craft, but have two or three landers aboard Rosetta. Getting a craft to some point in space, even if that's next to a moving object, is old hat; the tricky (and so far untried) bit is landing on the comet. With multiple landers you have a bigger chance of at least one succeeding, and if more than one lands successfully you can do science in multiple places.
Re: They need Neil Armstrong
In the general sense he's right. The thing about 67P/Churyumov-Gerasimenko is that it has very little gravity, and one could just jump off a slowly passing spacecraft and more or less fall onto the comet without employing a landing craft. Though if you're pedantic, you might want to call this 'landing' as well. For getting off again there are various options, such as a Skyhook-like rig (you just have to throw or fire the line up as balloons tend not to work too well in space), a jetpack or even just a pair of tensioned springs under your shoes, depending on how high the craft will pass over the comet
Re: Reminds me of Maplins
They shot themselves when they stopped selling in europe.
They never really started selling in Europe in the first place.
Where I lived, I had three electronics parts stores within cycling distance, fairly well stocked and with decent prices. RatShack tried to enter that market by having a shop full of tat, with prices as if every component was individually handled and sent first-class mail from wherever they were manufactured via their US HQ to the shop, which was in a prime shopping street. A shop which was staffed by at least twice the number of zit-faced shop assistants that the customer density warranted, but whose collective IQ still didn't exceed their smallest shoe size (in US units).
They went under within a year. Their bizarre selection of blister-packed components turned up at one of the electronics parts stores, but even in their clearance bin they didn't shift.
Re: Forget 'Hello Kitty'
Does it say "This side up" and "Insert coin to operate" ?
Re: and best of all ...
Ant size is a bit vague.
We need a Register Standard Ant.
Re: Climate Change
mankind's wonton release of CO2
Oh sure, it's all caused by Chinese soup.
Beer, because it goes well with Chinese food, and contains CO2 too.
Re: Collision vs other explaination
Also, I think that comets that would collide at anything but the gentlest of bumps would result in a rather large number of rather small rocks, instead of a Space Duck.
and is thought to have weighed as much as several adult elephants.
Re: Was Gravity the same back then?
no, gravity isn't caused by the rotation of the Earth.
I know of someone who insists we're kept from floating away into space by the air pressing down on us. How the air stays put he's utterly unable to explain, but that's the beauty of being totally uncontaminated by logic thought, you can dismiss gravity as "it's just a theory" and handwave away any inconsistencies and open ends in your own "explanation".
Re: Was Gravity the same back then?
Gravitational pull is a function of the mass of the attracting body (see also the articles on Rosetta versus 67P/Chruyumov-Gerasimenko) and the distance from it, so unless the Earth was substantially lighter back then, or the whateversaurs were floating around in space then no, they would have gravity pull on them about as hard as it is pulling on us. The bit of mass that was added right at the end of their existence may have been large, but it was still inconsequential with regard to gravity.
Even if the Earth was smaller back then (how? did heavy elements break down into lighter, more voluminous elements) its mass would still have been roughly what it is now (modulo some influx of space debris), and, if anything, the whateversaurs would be closer to the centre of the Earth, and gravitational pull on them would be larger.
Re: Apostrophe's ... seriously
Bad Grammar is the book you should read.
Now go away or I shall taunt you a second time.
Re: Not surprising with those company names
The pioneers of the industry picked sexual innuendo-soaked names. Honeywell. Wang.
The latter once ran the marketing slogan "Wang Cares".
Very, very briefly.
Re: Not wishing to be pedantic
Octopi can see all the same without a blind spot, so I would indeed call ours a bug.
I changed all my nudie pics passwords to "pissword"
Now we know your account name, officercrabtree
Seasoned tea drinkers will also know that green tea should be brewed at 80°C, Oolong at 90°C and instant coffee at 95°C.
Instant coffee should not be brewed. It should be incinerated.
Re: Battery clip springs...
but on the multiple jobs you have springs facing both ways.
There are also holders that can take 4 AA (or AAA) cells in a single row, so you can have all springs at the right end
Re: Why not use a standard RC lipo ?
Three reasons: temperature, temperature and temperature.
It's evidently a spreadsheet to keep track of hunting kills.
The Asset that Came Back
I'm a bit hazy on the details, but a colleague related the following story.
Scene: military base, the electronics repair shop. The asset list disagrees with the actual content of the repair shop regarding a highly valuable and rather classified device. Of course the discrepancy is such that the list says there should be 1 (one), and reality says there's 0 (zero). A search is conducted to try and rectify this, but to no effect. Another search suffers the same fate: the device is simply not to be found. As the device is rather classified, several people are most unhappy.
There follows a multi-week period in which papers are shuffled, signed, counter-signed, sent off to be signed at a higher level, stamped, signed again, buried in soft peat, etcetera. This process manages to result in bringing the asset list in line with reality. And there was much rejoicing.
Several months pass. Then, miraculously, the device returns from its nowhere-to-be-found state, threatening to cause a discrepancy with the asset list once again, and potentially have even more people be even more unhappy. This, the repair shop's CO decides, should not happen. Oh, no. So, the small band of people who know of the existence of the rather classified device that officially doesn't exist anymore went to work. This involved an angle grinder, an oxyacetylene torch, a tracked vehicle, and finally two pits and a serious amount of thermite.
Re: Not Always a Bad Thing - But Only if You Know in Advance
No! Make sure your supply contract specifies what you expect and require, BEFORE you sign up to the deal.
I've seen several cases of "this gear was exactly right for what we did when we bought it a year ago, but now that we're having more customers shoving more stuff at us to service/fix/tweak, it becomes increasingly limited unless we're able to add functions x, y and z. If the manufacturer can't add it, and it wasn't in the specs back then, we'll have to buy new kit"
Buying a crystal ball first to divine what your future requirements will be tends to go down badly with the average beancounter; buying overspecced gear tends to suffer the same fate.
Beancounter haruspicy is equally bad at predicting future developments, but has the advantage that the equipment budget can be better matched to the requirements as expected by the techies.
Re: Financial IT spending
It took millions and years of effort to replace, and there were operational hiccups on the way.
They should just have called ..... SuperJake
Re: Goth friends
My own skull, topped and hollowed
And your brain casing replaced with a 3D printed copy?
Re: yet more numpties
Go calculate the inductance of a coiled power cord, the resulting reactance at 50 (or 60) Hz, then the resultant power loss at (being generous) 1 amp of current through that "coil". Take note of how that power loss only partially occurs in the actual power cable, the rest being induced in ferrometal parts happening to be close. Compare this to the amount of resistive warming due to weedy and non-copper cable cores.
Re: Flat, 3 core, single insulated, vs round, 3 core, double insulated?
I've never seen anything like, and nor would I want anything like, the cable pictured.
I have. In datacenter racks configured by HP. Somewhat beefier, but still singly-insulated, cable with C13/C14 connectors.
(and presumably no fuse in the picture to protect the wires).
That's something you'll find only in BS 1363 plugs, which need them because of this "ring mains: thingy
'terrorist' attacks - the very thing it's supposed to defend against.
At home I was using a Senseo for the first morning cuppa, until I noticed I usually wasn't that dead that I couldn't operate a normal drip filter.
The Bialetti is used mostly for camping: no problem using it on an open-fire stove.
There's a vacuum pot (a bit more lab glassware-like than the Cona), made in France, in the hackerspace, but it's not used very often.
Re: The best brew: Melitta Coffee Maker, Single Cup Pour-Over Brewer with Travel Mug,
I had the Aerobie. DUMPED IT!! It was a pain in the arse.
I very much doubt that that is the right way to use it.
Re: If you're going to worry about their tech selection...
Yes, except that the 555 is realy not a good choice for longer duration delays. Too much drift on the R or the C.
You could sell it as an auto-adjusting delay (and auto-adjust the billed development and build cost) to the company's beancounters.
Seriously, 15 minutes is no problem with decent quality components and the 7555 (CMOS version)
Re: If you're going to worry about their tech selection...
Sounds like they'd only need a handful of input lines, so to be REALLY pedantic
a 555 would be all they need. And a diode for each PIR sensor, as a discrete OR gate.
Bunch of fanbois
stomping their feet after hearing of possible iPhone 6 delays?
If the diode + capacitor solution turns out to be insufficient, I'd get a step-up converter to boost the battery voltage to 12..18V, then an large-ish cap (4700uF, 25V), then a step-down converter to feed the Pixhawk at its required voltage.
Supercaps are not really capable of delivering large currents; they're meant as a buffer for stuff that draws little current (like RTCs and CMOS storage) for which you might not want to use a primary button cell (because of replacement issues) or rechargeable cells (additional charge circuitry, degradation).
Depending on the current drawn by the Pixhawk, slapping a reasonably large cap on its logic power supply line together with a series diode, so that when the servos cause the battery voltage to drop it won't propagate to the Pixhawk, would be my try to fix this.
Re: anyone who puts other motorists at risk by slowing
which resulted in the death of two following motorcyclists
That's not solely her fault (and I am a motorcyclist). Following too close so that you don't have time to react to a vehicle suddenly stopping, then brake or swerve to avoid collision is noone else's fault but the person who's following too close. Sure, on a motorway it's usually a steady flow of traffic in more or less the same direction, but anything can happen to disrupt that, and it behooves anyone (not just motorcyclists, BTW) to be aware of that.
What, in any case, is the number of ducks you can safely mow down without stopping, and at what speed? Had one taken flight and hit the windscreen, chances are she would have slammed the brakes, with quite likely the same (or worse) outcome. What if it had been a goose or swan instead of a duck? The average driver would brake, doesn't matter if that's before or after hitting it. A deer? Moose? What if she'd had an engine failure? Or a truck slightly ahead suddenly blowing tyre shrapnel in the direction of her car? Just a number of reasons why not keeping distance can be rather unhealthy.
Re: 20 foot high tower of feathers
Years ago on holiday, on a remote country road, my Dad's car hit a chicken just as we passed a small cottage
Mate of mine hit a chicken with his sidecar rig. Presenting it to the farmer's wife, uttering apologies, she replied laconically "Oh, that's chicken soup tonight then."
I once hit a pigeon with 2 Class 37 locos
I take it you hit it with the first one, with the other and the rest of the train just supplying the necessary momentum to offset the pigeon's impact.
Re: the day after....
And this hacker group managed to conceive the attack and launch it in that timeframe
Probably a matter of the payload being there already (probably in several variants), crafting a plausible-looking carrier pdf (a press release in this case), identifying who to send it to, selecting some compromised mail server and a receiving system (both available in abundance), then adding it all together, stir-frying it briefly and serving it up. Shouldn't take more than a couple of hours for a small group with the right level of organisation.
The one thing that's rather baffling, as has been mentioned already, is what they hoped to find after just one day.
Re: "An IP address in china"
I'd like to see the Received headers
That will tell you which mailservers it touched, and where it was injected. And then only if none of those machines was compromised. It won't tell you who injected it.
Re: No googling?
the good thing about RedHat certification is that you have to sit an all-day practical test to prove you can actually do stuff.
The bad thing is that they won't even tell you what you did wrong, even just globally, like "Questions i, j, k - OK, questions m, n - NOK, questions o, p - partially OK". I failed an RHCSA by an utterly surprising 50 points, given that I had all questions but one (and another one partially) answered and working correctly, unless I'd misinterpreted those questions and the required end situation.
That total lack of feedback didn't exactly spur me on to retake that exam.
Re: I feel like I'm living in an alternative reality sometimes.
so far East you can clearly receive Belorussian radio.
You mean those broadcasts that you can listen to anywhere in the world, using only the fillings in your teeth?
Re: If you want a proper coffee
Raw beans smell like lentils.
I wonder if how they'd be in a soup.
There's this image in my head now where Neil is tasting his "lentil" dish where Vyvyan has replaced them with raw coffee beans.
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