Do we really want growing open source use in the military / intelligence sphere? Where is the border between helpful and harmful, and where is the moral event horizon for the contributors?
"Software for Analysts" sounds harmless, but could very well be their best shot at re-creating 1984. Is it really encouraging to have Echelon being empored by open source to eavesdrop on even more emails and phone calls?
Or how about drones, avionics, etc? Would you feel empowered by having a killbot using your code?
I recently went to their homepage and looked _really_ hard for any statistics about which books are transcriped. I read their Science paper. Tried all sections. Its all about the captcha part, and _nothing_ about the RE. The way they state how it works ("We are using 100.000 unique words") sounds like they have given up on that part long ago and just recycle their old database again and again...
If we only count the high energy protons from the link, we get a counting rate of over 1/cm^2/sr/s over a day.
If we take the sun as source, we have about 6e-5 sr as a solid angle. The earth has a crossection of about 128 million km^2, = 1.28e16 cm^2.
so if we count the proton mass over 84000 seconds, it will be about 6e16 protons, so total mass is about 100 picogram.
Its not my field, but my guess would be that its negligible compared to normal solar wind. The point that counts is the massive energy of the particles (those numbers where for E>10MeV)
Well, call me if google ever innovates something. You know that ALL those nice google products are just ouside companies work bought with their advertising billions?
Funny thing, there was a long time where google earth printouts still showed as "Keyhole Print Job" in the printers...
You got your wavelength wrong. As nobody uses wavelength for x-rays anyway (well almost nobody...),the straightforward way would be: Number of photons * Energy of Photons.
The detector of Swift is sensitive from 15-150keV, so lets say a median energy of 50keV. 1eV=1.602*10^19J -> 143E3*1.602E-19*50E3= 1.15 nW
Now much, but consider: 1.15nW on each squre meter surface of a sphere with 5 billion lightyears radius...
Yes, it is. And hydron is the simply most common ones. Why are we then not all just using hydrogen for power? Ding Ding Ding. Our planet is not a typical case of "universe", dimwitt.
Our helium sources are _very_ scarce, as it will depart our atmoshpere in quite a short time, geologically speaking. We have to make do with the results of radioactive decay down below, and even then you need something like long-time accumulation in natural gas fields to get usable helium fractions.
Any real use of helium for cryogenics is usually combined with helium recapturing lines. It would be _insane_ to let it go up into the air, even at todays prices.
Look-up tables are funny: If you need enough precission to use the more demanding algorithms, any look-up table will be quite big, posssible too large for the cache. And modern CPUs can calculate a trig just as fast as access memory in case of a cache miss. To except in situtations where you can be really slobby (and use a 100 value table or something), it might be a shot in you foot. (of course some SSE (3dnow had it definitely) have accelerated trigs using hardware lookup tables and newton rapson refinement, making the software side totally unneeded.
call me spoiled, but if you announce a link for a "peek", i expect something other than a website that prompts me to install the fonts i wanted a peek at.
How about something useful, like comparisions with existing fonts to show what the big deal about these new ones is. Preferably in a way that doesnt require having them installed.
Hell, how about making that stupid 100 screen long page a PDF with the font embeded?
In a way. thats just the same as claiming a laser can caluclate a 2D FFT if you look at the frauenhofer diffraction of an aperture. Or that single candle can render better than any GPU by the way a room looks like when its illuminated by it.
You just have to redefine a basic property of your system as "calculation"
Yeah. Also, for some reason there seems to exist no player in the world that can skip or jump in a video inside an OGM container without severe slowdowns and pauses even on an Core i7. Something that does simply not happen for avi, mp4, mkv or even mov (which is more or less mp4).
Your main error is that you assume flash is simpler than HDs. The opposite is true. You cannot even imagine how complicated 32nm semiconductor fabrication is. And every step down will be worse. If it were easy, it wouldnt cost billions to get a manufacturing plant up. And they would not need Phds for process control.
Storage cells on a HD surface are not that much bigger than flash bits on a chip. Maybe an order of magnitude. On the other hand, flash requires a HUGE amount of processing to make the chips, and scaling the structure size down will only increase the investment cost required for fabs. Yes, they will more than break even, but 15nm will not be 25% of the price of 30nm.
Also, scaling is limited for flash. There will never be a point were a 3nm process gets shrunk to a 2nm process. While it is true that HDs are closer to the scaling brick wall, currently the price difference is still about a factor of 40. And HDs wont stop dropping in price.
The only way I see FLASH ever getting cheaper than HDs is that if at some point of time it will be cheap enough for most people.
- In one scenario, the $20-30 mechanical parts base cost of an HD could make the difference. A 2TB drive might be not much more expensive than a 300GB, but if you only need the 300GB, flash might be cheaper.
- Similar, if production rates of HDs go down because of flash being "cheap enough" for most people, economy of scale can drop. This may end in a scenario where HDs are still cheaper per GB if you need 500TB of storage, but you will only find them in media servers or in datacenters, similar to streamer tapes in the past.
The main point is that you can get huge densities in flash, you can stack dies many times beacuse of the low power, it should be no problem to fit 10TB in the volume of a 3.5" drive even today, etc.
But in the end, for every GB, a certain size of silicon has to be processed in some of the most expensive and complicated production processes the world has ever seen. While for HDs, (simplified) you just do some vacuum sputtering. They WILL stay cheaper. But maybe at some point they will die out because they are big, sensitive and slow.
Sodium Sufur are simpler, more compact. And at this size, they should also be just as efficient. I dont know which one would be cheaper, as at this scale, the big complexity oa the vanadium cells might be offset by the good scaling.
They have to run at 350C, as the other poster already said. In a cell of this size, the inefficiency of the charging and discharging is enough to keep it hot, while a small unit would need aditional heaters (square-cube law).
Slashdot Mirror
Do we really want growing open source use in the military / intelligence sphere?
Where is the border between helpful and harmful, and where is the moral event horizon for the contributors?
"Software for Analysts" sounds harmless, but could very well be their best shot at re-creating 1984. Is it really encouraging to have Echelon being empored by open source to eavesdrop on even more emails and phone calls?
Or how about drones, avionics, etc? Would you feel empowered by having a killbot using your code?
Tell that superman face to face and lets see how strong your point is :)
Hm.
So its for-profit work for the biggest advertising firm in the world.
Sort of expected project gutenberg or something.
Too bad.
I recently went to their homepage and looked _really_ hard for any statistics about which books are transcriped. I read their Science paper. Tried all sections.
Its all about the captcha part, and _nothing_ about the RE.
The way they state how it works ("We are using 100.000 unique words") sounds like they have given up on that part long ago and just recycle their old database again and again...
Well, lets take a look.
If we only count the high energy protons from the link, we get a counting rate of over 1/cm^2/sr/s over a day.
If we take the sun as source, we have about 6e-5 sr as a solid angle. The earth has a crossection of about 128 million km^2, = 1.28e16 cm^2.
so if we count the proton mass over 84000 seconds, it will be about 6e16 protons, so total mass is about 100 picogram.
Its not my field, but my guess would be that its negligible compared to normal solar wind. The point that counts is the massive energy of the particles (those numbers where for E>10MeV)
Well, call me if google ever innovates something.
You know that ALL those nice google products are just ouside companies work bought with their advertising billions?
Funny thing, there was a long time where google earth printouts still showed as "Keyhole Print Job" in the printers...
Replace step 1 by :
Buy ANYTHING NAS thats not a Drobo.
Rest is OK.
Seriously, Drobo is the sickness of Mac "style before substance" infecting storage.
With a camera that was released starting 2007...
You got your wavelength wrong. As nobody uses wavelength for x-rays anyway (well almost nobody...),the straightforward way would be:
Number of photons * Energy of Photons.
The detector of Swift is sensitive from 15-150keV, so lets say a median energy of 50keV.
1eV=1.602*10^19J
->
143E3*1.602E-19*50E3= 1.15 nW
Now much, but consider: 1.15nW on each squre meter surface of a sphere with 5 billion lightyears radius...
Yes, it is. And hydron is the simply most common ones. Why are we then not all just using hydrogen for power?
Ding Ding Ding. Our planet is not a typical case of "universe", dimwitt.
Our helium sources are _very_ scarce, as it will depart our atmoshpere in quite a short time, geologically speaking. We have to make do with the results of radioactive decay down below, and even then you need something like long-time accumulation in natural gas fields to get usable helium fractions.
Any real use of helium for cryogenics is usually combined with helium recapturing lines. It would be _insane_ to let it go up into the air, even at todays prices.
Ah, time marches one.
Look-up tables are funny: If you need enough precission to use the more demanding algorithms, any look-up table will be quite big, posssible too large for the cache.
And modern CPUs can calculate a trig just as fast as access memory in case of a cache miss. To except in situtations where you can be really slobby (and use a 100 value table or something), it might be a shot in you foot.
(of course some SSE (3dnow had it definitely) have accelerated trigs using hardware lookup tables and newton rapson refinement, making the software side totally unneeded.
Even worse:
How does he know his algorithm is that novel if he never read the corresponding literature? Not everything is in textbooks....
If you have power to spare, even moderately efficient energy storage solutions become viable.
A water->hydrogen->water cycle may be less than 50% efficient, but then just take 2%.
Same for solar thermal storage in molten salt solutions.
Well, hubble had a few repair missions, each of which was A LOT more expensive than this whole project.
Maybe those russians should take a second look at it...
call me spoiled, but if you announce a link for a "peek", i expect something other than a website that prompts me to install the fonts i wanted a peek at.
How about something useful, like comparisions with existing fonts to show what the big deal about these new ones is. Preferably in a way that doesnt require having them installed.
Hell, how about making that stupid 100 screen long page a PDF with the font embeded?
386DX40 with 4Mbyte of RAM, 170MB HD, Mitsumi FX-001D CD-Rom drive.
Just because you were a late adopter of CD-Roms doesnt mean everybody was.
In a way. thats just the same as claiming a laser can caluclate a 2D FFT if you look at the frauenhofer diffraction of an aperture.
Or that single candle can render better than any GPU by the way a room looks like when its illuminated by it.
You just have to redefine a basic property of your system as "calculation"
Well, we all know that even simple machinery can become self aware when going far enough into the beyond...
The Jury would have had a much easier time deciding against Childs if being a grade A asshole were a felony...
Yeah.
Also, for some reason there seems to exist no player in the world that can skip or jump in a video inside an OGM container without severe slowdowns and pauses even on an Core i7. Something that does simply not happen for avi, mp4, mkv or even mov (which is more or less mp4).
Gartner is most likely right.
Your main error is that you assume flash is simpler than HDs. The opposite is true. You cannot even imagine how complicated 32nm semiconductor fabrication is. And every step down will be worse. If it were easy, it wouldnt cost billions to get a manufacturing plant up. And they would not need Phds for process control.
Storage cells on a HD surface are not that much bigger than flash bits on a chip. Maybe an order of magnitude. On the other hand, flash requires a HUGE amount of processing to make the chips, and scaling the structure size down will only increase the investment cost required for fabs. Yes, they will more than break even, but 15nm will not be 25% of the price of 30nm.
Also, scaling is limited for flash. There will never be a point were a 3nm process gets shrunk to a 2nm process. While it is true that HDs are closer to the scaling brick wall, currently the price difference is still about a factor of 40. And HDs wont stop dropping in price.
The only way I see FLASH ever getting cheaper than HDs is that if at some point of time it will be cheap enough for most people.
- In one scenario, the $20-30 mechanical parts base cost of an HD could make the difference. A 2TB drive might be not much more expensive than a 300GB, but if you only need the 300GB, flash might be cheaper.
- Similar, if production rates of HDs go down because of flash being "cheap enough" for most people, economy of scale can drop. This may end in a scenario where HDs are still cheaper per GB if you need 500TB of storage, but you will only find them in media servers or in datacenters, similar to streamer tapes in the past.
The main point is that you can get huge densities in flash, you can stack dies many times beacuse of the low power, it should be no problem to fit 10TB in the volume of a 3.5" drive even today, etc.
But in the end, for every GB, a certain size of silicon has to be processed in some of the most expensive and complicated production processes the world has ever seen. While for HDs, (simplified) you just do some vacuum sputtering.
They WILL stay cheaper.
But maybe at some point they will die out because they are big, sensitive and slow.
Sodium Sufur are simpler, more compact.
And at this size, they should also be just as efficient.
I dont know which one would be cheaper, as at this scale, the big complexity oa the vanadium cells might be offset by the good scaling.
No, they dont scale down.
They have to run at 350C, as the other poster already said.
In a cell of this size, the inefficiency of the charging and discharging is enough to keep it hot, while a small unit would need aditional heaters (square-cube law).