Obviously, if the winning team used that, and the NSA found a vulnerability in their own code, then it'd either make them look really bad or give them some serious explaining to do about the backdoors they planted.
You certainly need 200W to get a signal to earth, and probably more.
For reference, Pioneer 10 had an 8 watt radio transmitter. Its RTG put out 155 watts at launch. It lost communication with Earth 25 years after launch (the RTG would have been putting out about 127 watts by then). We can certainly design electronics to use less power now (as long as the energy doesn't have to be wasted anyway to power heater elements).
I guarantee you that every single half-sane person in North Korea knows it.
The big question is, at the moment of truth, would just knowing it's all a lie be enough for tens of thousands of artillery operators to refuse direct orders and likely forfeit their lives as a consequence?
Keep the OSI model in mind, errors at the physical layer cause the whole stack to collapse.
Correct. Therefore such errors will show up when you run "ping".
Granted, if you want to guarantee sufficient S/N ratio margin, ping won't cut it, but telcos never even bother with that stuff for T1 lines. They just put a T-BERD on both ends and if all the tests (running at the same bitrate as your data) come back clean, they consider the line good.
Cat5e can at least do it over short distances like say 20' but much past that and your performance will indeed drop.
Please explain where you think the slowdown is coming from, then. 1000baseT transmits with the same signal power and modulation for any cable length. This signal is either interpreted correctly or incorrectly by the receiver. If it's interpreted correctly, it will be received at full speed. If it's interpreted incorrectly, an error will be counted. I don't see any wiggle room here, and your anecdotal evidence does not match mine.
A: For extremely short durations, a small sample size of humans have survived 150G. However, the green 50G shock stickers are commonly used on dummies to equate to major injury. 9G is about the most anyone can take without blacking out, even lying down. I suspect for long-term endurance you may be limited to 2 or 3G and even that would require extreme physical training.
any conclusions drawn from that write performance are completely invalid.
Yes, Intel's SSDs completely invalidate their whitepaper. The X25-Ms were first released in September 2008, this paper was published in November 2008. Their research likely took longer than that. Furthermore, from page 2 it seems clear their servers are mostly file/print servers (which typically aren't bottlenecked on disk IO). Also, what are they doing running a 7 TB Exchange server when Microsoft PSS told me in no uncertain terms not less than a year ago to keep each information store below 50GB?
BTW, 99.999% is a fiction. In the real world, everything needs a maintenance window. For example, next weekend late at night my ILEC is scheduling 45 minutes of downtime for all their voice customers so they can physically move their 5 9's capable phone switches to a different suite. It's not likely that phone system will still be in production in 9 years so they can make up the difference. Do I, as their customer, care? No.
Only the battery is custom (or even non-consumer grade)
No, the battery is an off-the-shelf part. The power supply and motherboard are custom. Look at where the battery wires go. Look at the power going to the motherboard.
Anyone concerned that when a SLA batter is charged, hydrogen is one of the by-products?
You're Doing It Wrong(tm). A sealed cell will only vent hydrogen if overcharged (at the cost of increasingly reduced cell capacity - you're not filling it back up with water!). An intelligent charger will eliminate any routine hydrogen venting, leaving only the occasional bad battery or battery hooked to a broken charger venting. Google is probably OK with that.
Or you get some Dell or HP part with the same specs. Hello? Not to mention that a SSD may not be the right drive for a server.
Didn't know you were a masochist, but hey, to each their own. Seriously, the only remaining reasons to go with traditional drives are capacity and price. TFA is about a system with a small (80GB) array and they're getting ripped off on price anyway. If they were on SSDs to begin with, it'd be a lot less likely to die on them and this article probably wouldn't even have been written in the first place.
No kidding. For the prices Apple is charging, you could just about get a decent SSD (maybe not an X25-M, but an OCZ Vertex at least) + a 2.5"-to-3.5" adapter tray that would still let you hotswap it. You'd never even notice the differences between a stock drive and a drive with Apple's supposed tweaks, but once you go SSD you will never go back.
No company is going to sue you if you're in the process of correcting the issue because that means you're going to be a future paying customer.
Sounds all well and good, until you start thinking like a software salesperson. You haven't made quota yet; you want that big fat commission check this month, not over the next two years.
Some salesperson will eventually notice what you're doing, pounce, and say "You need to buy this all right now or else. We don't care if you don't have the money; you can finance it through us." Microsoft pulled that on my boss at my last job.
The sad truth is that if you pirate absolutely everything or buy only boxed copies, the vendor won't even know you exist.
Yes, by buying out a company or two in that market, rebranding their product line, and doing very little to make it work similarly to their existing products (or interoperate with their existing products) for several product generations.
"The boys i mean are not refined
They go with girls who buck and bite
They do not give a fuck for luck
They hump them thirteen times a night
One hangs a hat upon her tit
One carves a cross on her behind
They do not give a shit for wit
The boys i mean are not refined
They come with girls who bite and buck
Who cannot read and cannot write
Who laugh like they would fall apart
And masturbate with dynamite
The boys i mean are not refined
They cannot chat of that and this
They do not give a fart for art
They kill like you would take a piss
They speak whatever's on their mind
They do whatever's in their pants
The boys i mean are not refined
They shake the mountains when they dance"
-- E. E. Cummings, 1926ish
This is of course suboptimal, because of the delay, but I think the most objective perspective is that of the students in hindsight. Track down the students after 5 and 10 years (at which point they will have had lots of other teachers to compare against, and a lot of perspective) and ask them which ones were the best they had. You will likely find a lot of opinions in common. Give those teachers more pay and/or extra retirement money.
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Obviously, if the winning team used that, and the NSA found a vulnerability in their own code, then it'd either make them look really bad or give them some serious explaining to do about the backdoors they planted.
The NSA is all about not tipping their own hand.
For reference, Pioneer 10 had an 8 watt radio transmitter. Its RTG put out 155 watts at launch. It lost communication with Earth 25 years after launch (the RTG would have been putting out about 127 watts by then). We can certainly design electronics to use less power now (as long as the energy doesn't have to be wasted anyway to power heater elements).
The big question is, at the moment of truth, would just knowing it's all a lie be enough for tens of thousands of artillery operators to refuse direct orders and likely forfeit their lives as a consequence?
It's not just field-strippable, it's field-scriptable.
Correct. Therefore such errors will show up when you run "ping".
Granted, if you want to guarantee sufficient S/N ratio margin, ping won't cut it, but telcos never even bother with that stuff for T1 lines. They just put a T-BERD on both ends and if all the tests (running at the same bitrate as your data) come back clean, they consider the line good.
Ethernet networks are increasingly 100% full-duplex. Such a network can't have collisions.
Please explain where you think the slowdown is coming from, then. 1000baseT transmits with the same signal power and modulation for any cable length. This signal is either interpreted correctly or incorrectly by the receiver. If it's interpreted correctly, it will be received at full speed. If it's interpreted incorrectly, an error will be counted. I don't see any wiggle room here, and your anecdotal evidence does not match mine.
FWIW, Google's solution puts power supplies on both sides of the UPS.
A: For extremely short durations, a small sample size of humans have survived 150G. However, the green 50G shock stickers are commonly used on dummies to equate to major injury. 9G is about the most anyone can take without blacking out, even lying down. I suspect for long-term endurance you may be limited to 2 or 3G and even that would require extreme physical training.
B: Google calculator can easily answer this one: http://www.google.com/search?q=c%2F(9.8m%2Fs^2*3). Replace the 3 with whatever acceleration rate in G's you want.
The hard part, of course, is finding a powerplant that could actually do that.
Densities of materials vary widely, but as a rule of thumb, mass increases with the cube of an object's size, but drag only increases with the square.
Fixed that for you.
Yes, Intel's SSDs completely invalidate their whitepaper. The X25-Ms were first released in September 2008, this paper was published in November 2008. Their research likely took longer than that. Furthermore, from page 2 it seems clear their servers are mostly file/print servers (which typically aren't bottlenecked on disk IO). Also, what are they doing running a 7 TB Exchange server when Microsoft PSS told me in no uncertain terms not less than a year ago to keep each information store below 50GB?
Yes, it is all their voice customers.
No matter what it is, stuff does need maintenance, often not even because of any bug or design deficiency in the equipment itself. End of answer.
No, no apologies or downtime required.
BTW, 99.999% is a fiction. In the real world, everything needs a maintenance window. For example, next weekend late at night my ILEC is scheduling 45 minutes of downtime for all their voice customers so they can physically move their 5 9's capable phone switches to a different suite. It's not likely that phone system will still be in production in 9 years so they can make up the difference. Do I, as their customer, care? No.
STFW is the new RTFM.
No, the battery is an off-the-shelf part. The power supply and motherboard are custom. Look at where the battery wires go. Look at the power going to the motherboard.
You're Doing It Wrong(tm). A sealed cell will only vent hydrogen if overcharged (at the cost of increasingly reduced cell capacity - you're not filling it back up with water!). An intelligent charger will eliminate any routine hydrogen venting, leaving only the occasional bad battery or battery hooked to a broken charger venting. Google is probably OK with that.
The conversion from 12VDC to 12VDC?
Look carefully at the motherboard, specifically at the colors of wires going to it. See if you can spot an ATX power header.
Didn't know you were a masochist, but hey, to each their own. Seriously, the only remaining reasons to go with traditional drives are capacity and price. TFA is about a system with a small (80GB) array and they're getting ripped off on price anyway. If they were on SSDs to begin with, it'd be a lot less likely to die on them and this article probably wouldn't even have been written in the first place.
No kidding. For the prices Apple is charging, you could just about get a decent SSD (maybe not an X25-M, but an OCZ Vertex at least) + a 2.5"-to-3.5" adapter tray that would still let you hotswap it. You'd never even notice the differences between a stock drive and a drive with Apple's supposed tweaks, but once you go SSD you will never go back.
Sounds all well and good, until you start thinking like a software salesperson. You haven't made quota yet; you want that big fat commission check this month, not over the next two years.
Some salesperson will eventually notice what you're doing, pounce, and say "You need to buy this all right now or else. We don't care if you don't have the money; you can finance it through us." Microsoft pulled that on my boss at my last job.
The sad truth is that if you pirate absolutely everything or buy only boxed copies, the vendor won't even know you exist.
Exactly. The grandparent's argument falls on its face as soon as you hook up your do-everything-box to a telco circuit.
Yes, by buying out a company or two in that market, rebranding their product line, and doing very little to make it work similarly to their existing products (or interoperate with their existing products) for several product generations.
Caveat emptor.
"The boys i mean are not refined
They go with girls who buck and bite
They do not give a fuck for luck
They hump them thirteen times a night
One hangs a hat upon her tit
One carves a cross on her behind
They do not give a shit for wit
The boys i mean are not refined
They come with girls who bite and buck
Who cannot read and cannot write
Who laugh like they would fall apart
And masturbate with dynamite
The boys i mean are not refined
They cannot chat of that and this
They do not give a fart for art
They kill like you would take a piss
They speak whatever's on their mind
They do whatever's in their pants
The boys i mean are not refined
They shake the mountains when they dance"
-- E. E. Cummings, 1926ish
This is of course suboptimal, because of the delay, but I think the most objective perspective is that of the students in hindsight. Track down the students after 5 and 10 years (at which point they will have had lots of other teachers to compare against, and a lot of perspective) and ask them which ones were the best they had. You will likely find a lot of opinions in common. Give those teachers more pay and/or extra retirement money.