Re: He should be ashamed
You do realize that starring in a movie is just a short-term contract job, not a lifetime commitment to actually be whatever character you've been paid to portray on screen for 2 to 3 hours?
95 posts • joined 13 Nov 2011
You do realize that starring in a movie is just a short-term contract job, not a lifetime commitment to actually be whatever character you've been paid to portray on screen for 2 to 3 hours?
"Potentially very clever as a way of getting more bandwidth up a fibre."
Not really - multiple wavelengths in a single fibre (using tuneable lasers) is ancient history now days.
The trick is not in getting the multiple wavelengths into a single fibre - that's comparatively simple simple and can be done with passive devices - the real trick is the electronics needed to encode and modulate the lasers then decode and error correct at the far end.
"We continue to face grave security threats like terrorism, cyber-attacks, and nuclear proliferation that our intelligence community must have all the lawful tools it needs to address," Monaco offered."
Yes, but the issue is that they don't confine themselves to "the lawful tools", do they.
A Gnat's Cock doesn't qualify as precision engineering - it only truly qualifies as precision when working to tolerances of 1/2 and 1/4 Gnat's Cocks.
Six or eight fibres in a long distance cable would be a typical number.
The problem with spatially distributing amplifiers to work "dozens" of fibres is that you would end up with a very lumpy, expensive and hard to handle (both lay and repair) cable - I seem to remember being told 60km as typical amplifier spacing, so if you distribute amplifiers along this spacing to accommodate dozens of fibres you would not have much of a gap between amp enclosures.
You're not wrong - you don't know what vapourware is.
The 300Gbps is for a single wavelength (lamda) - the exact number of lamda you can run on a single fibre pair depends on distance, number of amplifiers and quality of fibre, but the ITU 50Ghz grid allows for up to 96 lamda/fibre pair within the flat(ish) gain pass band of an EDFA.
ALu are (by your own calculation) only talking about using 50 of these, so they more or less have 100Ghz bandwidth to play with for each 300Gbps lamda on each fibre pair.
How have they cheated - the standard supply voltage to an in-line amplifier (ILA) is 50 volts, the only reason high voltage is used in submarine cables is because the ILAs are connected in series on the power conductor.
Our office lab has quite a few spools of fibre mounted up in the ceiling space, a mixture of 50, 100 and 200km spools - they are not very big, about 2/3rds the size of a box of cat5. The size difference between a production cable can be handled, laid on the ocean floor up to 10km down, left there to work for 20 years or more, and a spool of fibre designed to be installed in a lab is, strangely enough, hugely different. The naked fibre wound on to a lab spool is thin, so thin it can be hard to see when looking at a single strand. You could, literally, fit millions of km of naked fibre into a single cable tank on a ship.
Building up a set of spools to 12,000km is going to cost a bit, will weigh a lot and will take up a good sized corner of your office, but if you have the budget it's a trivial thing to do. How the DC power gets to any ILAs is irrelevant - you design the production cable insulation to meet the power feed voltage needed for the span at 50 volts/ILA, but that has nothing to do with its optical characteristics.
It's normal practice when testing a system in the factory to rack up the ILAs and terminals side by side and interconnect them with spools connected in series to provide however many km of fibre each span is designed for - no cheating and a lot more convenient than having a factory hundreds of km long and spending half the day driving between racks. (I've spent more than enough time driving up and down a system, taking two weeks to resolve a supervisory channel problem that could have been sorted in the factory in a day or so with everything side by side).
THEREFORE - based on many years of working with long haul high capacity fibre systems and quite a few years of working for a manufacturer of both terrestrial and submarine systems (including time at the factory observing pre-delivery tests on behalf of a customer), I'm going to call no BS on this one.
No, the non-linear effects still occur - either that or my customers are wasting money installing Raman pumps to improve the signal to noise ratio on some of their longer fibre spans.
What you're referring to is Chromatic Disperation due to the fact that different wavelengths of light travel a slightly different speeds and yes, the effect can be compensated for by spools of negative dispersion fibre or, if using coherent modulation techniques, ignored completely.
But CD is a linear effect, it occurs regardless of what power level is launched into the fibre. The Kerr effect, along with other effects such as Raman Scattering, Stimulated Brillouin Scattering, Phase Mixing, and probably a number of other effects, are what are referred to as non-linear effects and become worse as the launch power increases - you can even get a situation where the optical power can loosen the bonds between the glass molecules and allow acoustic noise (eg., the vibrations from passing traffic) to be coupled into the optical signal.
The Kerr effect is just one of a number of non-linear effects that need to be overcome.
"Proximus/Huawei's transmission speed was conducted over a 1,040km fiber link using an advanced "Flexgrid" infrastructure with Huawei's Optical Switch Node OSN 9800 platform."
There's nothing new about Flexgrid - it's an ITU standard and some of ALu's, and probably other vendors, optical products already support it.
"There is a clear opportunity to turn these into WiFi hotspots. Remove the phone, just have a mast and you'll provide the current generation of users with what they actually want"
Been there, done that! - there's been WiFi hotspots on many phone boxes in New Zealand for at least a couple of years now - and you get 1GB/day for free if you're with the carrier that owns the phone boxes.
""One day, I hope that I'm wrong, but one day there will be an attack that's successful," "
Sorry sunshine, but that attack took place on 119 - and you Merkins have all been running shit-scared ever since.
"What was not fair was it was in effect a fixed fee,"
That, to me, seems to be the fair part of it - an individual's consumption of most public services doesn't change much as a function of their income, in fact you could argue that higher income earners probably use less of publicly provided goods eg., more likely to use a car than a bus.
"Just make a whole pot of coffee for cripes sake."
Some of us take our coffee a little more seriously than that - however, that said, I won't be wasting time with any crappy pod originated coffee either.
" If so, then they can doubtless expect a US class action lawsuit heading their way before too long."
There's a reason why virtually all manufacturers state in the manual that they reserve the right to make design changes without notification.
"A plan to offer fibre running down the side of the tracks, which would have given great Wi-Fi coverage, has been abandoned, "
Having worked in a network that used just as small amount of fibre laid beside rail lines, I can assure you there is a significant downside to this otherwise great idea - if something does happen to the fibre (and it will) it can take literally days to get the necessary clearances and permissions to enter the rail corridor to carry out repairs.
Why not ship Android devices with no unwanted bloatware installed and let the new owner decide what they might want and/or need on their device.
'I used 'Silent Clack' because using a clack is more or less like using a morse key and when a member of the RSGB (Radio Society of Great Britain) passed on their obituary was marked in the magazine column entitled "Silent Keys".'
The term Silent Key or SK is still pretty much universally used for a deceased amateur operator. It's derived from the standard CW operating procedure of sending SK at the end of a 'conversation' to indicate that the sender is not intending to transmit any further information. related to the exchange ie., "over and out".
It's already halfway there in Android - on my Galaxy Note I can move part of an application to a micro-SD card. Remove the card and the app won't start, reporting as not being installed.
Unfortunately they then let the side down in that the app can be reinstalled onto the device and it picks up the existing data - so you need to hide your porn stash using an app that can keep the data on the SD card also.
"Then again I am a farmer and not a CEO, I probably wouldn't last 5 seconds running a major company before the shareholders beheaded me. But basically it does come down to choice........."
Only if it's a privately owned businesses - if you are running a publicly owned company (ie., anyone can buy shares in it) you have a legal duty towards the shareholders to maximize the return on their investment. In some countries you can end up in jail for failing to do so.
"Is Allen now going to go look for the Shinano, which was the planned 3rd ship in series, but which was completed as an aircraft carrier?"
I have a vague memory of reading somewhere in the distant past that all three ships were originally laid down as aircraft carriers, but the Musashi and Yamato were completed as battleships - if I'm right (and I'm open to correction on this) the Shinano would then be the only member of the class that was completed per the original design.
The Maritime Museum in Trieste, Italy, has a rib from Marconi's yacht and a display of instruments from his on-board lab, should you ever find yourself in that part of the world.
The fact that they are able to drive away a modern car that has an immobilizer is a sure sign that the modern car thief is highly skilled.
In fact, I can only suggest that they apply for a job at my local Hyundai dealership, who's current team, with the benefit of all technical manuals, the Hyundai scan tool and full factory support were unable to code two new (Hyundai supplied) keys to the immobilizer in my car.
Exactly the same thing happens on aircraft leaving Dhubai as well - strangely enough, none of the Arabic males on board seemed to find this any more offensive than I did.
No, it's more to do with how many coconuts it's got on board.
Sony and MPAA share the financial hit and the movie is released on the internet, unencrypted and free for all to download and enjoy - far too many targets for the WORKS to do anything about it.
Well, if this had happened in one New Zealand city I would say the reason for the 3 hour response time would be that the ambulance was busy picking up ambulance service management types from the pub after a night out and delivering them home - vastly more important than dealing to the merely sick or injured, apparently, as the crew were told that the taxi job had to be completed before the call was handled.
But then the pub would also have to admit that the beer is typically 95% water - and so far I've not found much support for that amongst my pub-owning friends.
Ho hum, here we go again.
South East Asia - Middle East - Western Europe 3.
Yes, the chances of one cable being laid over another are slim - for most of the ocean - but near popular landing points, especially in South East Asia, the cable maps show as fine a rat's nest of overlaid cables as you could hope to find anywhere.
There's quite a successful pub that I frequent - I've decided I want a bit of that action, but rather than build my own pub with all the attendant hassles I'll just go along to the existing one and demand access to one set of taps to run my business from.
Works for me!
but I suspect that in a real life hunter-gather society there is a very good reason for not being too keen on asking directions - anyone who knows the immediate area better than you is a likely to be a potential competitor and possibly even an enemy.
Common sense would suggest you don't go and deliberately introduce yourself to such a person.
I've never really been able to understand why those who were at school with me and left at the minimum leaving age (15), with no qualifications, shouldn't, 45 years later, be in the same financial position as myself.
Surely the 3 years of additional education and 42 years of on-the-job training, tertiary education and experience in my chosen field (not to mention at least another two weeks of classroom based training before the end of the year) have nothing to do with this obvious social injustice?
I agree - it's hardly a coherent argument against laser surgery.
It's only on this planet does the assumption that cloud = water vapour hold true.
Depending on the temperature of the particular planet in question clouds could be formed of a number of substances, such as hydrogen, methane, ammonia, nitrogen, even mercury in a vapour state - to name just a few.
If you knew anything about submarine cables you would be aware that any fiber cable with an economic capacity doesn't have repeaters, they have amplifiers.
The amplifiers have no ability to extract any data from the analogue payload signal, they don't even know - or care - what the bandwidth of each wavelength is. The only signal an amplifier can interact with, other than making it louder, is the supervisory channel which terminates and is re-originated at each wmp - and that's on a separate wavelength to those used for the payload.
As for those who want to install a sneaky underwater tap - all the DWDM equipment I've worked that is suitable for submarine use has the ability to enable alarms that are designed to specifically monitor for un-authorised (by the cable operator) tapping of the fibers.
The electricity retailer that I get my supply from fitted smart meters to all their customer's premises in the area several years ago - we, as consumers (not to mention the environment), are saving because they no longer have to employ people to drive around all day reading meters, plus, as a bonus, the electricity company no longer needs to hold a key to my home to get in to read the meter - and, if I have the urge, I can go on line and check my electricity consumption per hour, which has revealed that for about 22/24ths of each day a 1.5kW supply is more than adequate.
Interestingly, the lines company is now fitting their own smart meters to each point of supply, presumably so they can check that the retailers are owning up to the full amount of leccy they've on-sold to the end user, since there are multiple retailers in the area.
I'm also getting very close to pulling the trigger that will see the installation of a third smart meter at home - the one that will record the amount of power I've sold back to the retailer from the solar installation I'm considering installing.
"All in all, researchers found 17 previously undiscovered religious monuments"
How do they know that?
They were just as likely to have been pagan cannibals for all we know."
From the point of view of those who built these complexes, yes, these are religious monuments - the pagans are the ones who are doing the modern research on the remains.
I recall reading a book some years ago that mentioned rituals associated with the dead and visiting the bones on feast days (who wants to skip school today and go on a picnic with great-grandad?) - the author suggested that Stonehenge and similar monuments were basically charnel houses.
"Scots, wha hae wi Wallace bled,
Scots, wham Bruce has aften led,
Welcome tae yer gory bed,
Or tae victorie.
I think that the Scots will surpise you."
Not as much as the English surprised the Scots at Culloden, which is what this little piece was written about.
Power feeding is the answer you are looking for.
There are optical amplifiers fitted to each fibre every 60~70km which require DC power to operate (50V per amplifier), so a positive voltage is fed from one end and negative from the other - a long cable may have 25kV or more applied across its ends. The power is carried by the copper tube surrounding the fibres. This tube is interrupted at each amplifier with 50V being dropped across each of the series connected amps - kind of like xmas tree lights.
One of the interesting side effects of this is that somewhere near the mid-point of the cable the voltage on the power conductor is zero relative to the seawater outside the cable. This means that if a shark or other agency does expose the conductor to sea it is sometimes possible to move the zero volts point by adjusting the power feeding voltage at each end. This stops (or minimizes) current leakage at the fault point, allows the cable to keep working until a repair ship is on-site and reduces galvanic erosion of the copper tube at the fault point, which can ruin km of otherwise good cable in fairly short order.
Unamplified (hence no power feed) cables are possible - personally I've worked on one of 235km - but require the use of Raman pumps at the end points and are likely to have capacity restrictions due to signal to noise compromises imposed by the lack of intermediate amplification. My understanding is that the maximum length for this type of installation is under 400km.
Sorry, no I wasn't there on the Apollo mission - just work for a company that does submarine cables amongst other things.
So what they've actually developed is a coffee capsule machine that works in zero gravity - not really got a lot to do with espresso, quality or otherwise, has it?
"Sorry, voice just isn't there. It wasn't there 20 years ago, it's not there now."
How true - I fully agree with you, no-one should put any R&D effort into anything until it's been fully perfected.
"...you will never find a native Australian cockroach in your home - "
That's all very well in Australia, but here in NZ I have a constant stream of large Australia cockroachs parading through the house - big sods, with a yellow stripe down each side - from Western Oz I believe.
"Feet and fathoms are much better than metres for nautical (and aviation) purposes."
Back in the days when I could still afford flying lessons, I seem to remember that weight was in measured in kilograms, visibility was measured in metres and kilometres, height was in feet and fuel and oil quantities were in US gallons and quarts (Cessna 152).
I seem to recollect a number of years ago that a commercial flight in the US, using one of Boeing's fine products, had to make an emergency landing because one of the pilots had mistakenly assumed the recorded fuel load was in Kg, whereas it was actually in pounds.
Incredible as it may seem, given the stakes involved, aviation appears to be the one field of human endeavor that attempts to cater for all measuring system preferences.
Ye gods! - what sort of a backward system do you have over there?
When I changed from Vodafone to Telecom NZ last year I signed the paper work at lunch time and my new phone was up and running by 10 that night (and it wasn't my job to seek any sort of code from VF, either) - you've still got all of Friday to get that number ported, should be more than enough time.
They just need to release some pythons into the area.
I was able to see a Mosquito in the air during an Armistice Day fly-past in Nov., 2012 - an impressive aircraft, but for my money the best looking aircraft of WW2 would be the ME262.
The world's first operational combat jet, the only jet to see squadron service during the war, and as an additional plus it had a healthy speed advantage of the Mosquito, which would have probably seen the Mosquito become just another old aircraft if the war had continued.
Or you can root your device and sort the mess out yourself.
Running Android 4.3.1 (KatKiss 028 ROM) with Apps Advanced Permissons control, Adblocker to sort out those pesky ad-funded apps and Droidwall to sort any app that thinks it knows better than myself who gets to access the net from my tablet.
I once read a book on the subject of commercial whaling, back in the days when real men stuck a sharp stick into the whale from a rowboat and then held on to the string with a firm grip.
It seems that sometimes the whale got away, only to die later from the wounds and, if it felt so inclined, at this point it would float around on the surface - often for many days. Occasionally a whaling ship would come across one of these 'stinkers', as they were known, and haul it in to reap someone else's just rewards.
The phenomena of a stinker exploding when poked at carelessly with a flensing knife was not exactly unknown, but it appears the crews were normally just too busy at the time to video it and post on Youtube.
You do realise that there are repositories of legitimate Android apps other than the Play store, don't you? - or perhaps not.
This isn't an Apple-like situation, where there is only one source allowed - downloading apps from somewhere other than Play doesn't automatically place an individual in the " retards that "shop" for warez" category.