Specifically, I would like to know the power requirements for a piece of equipment like this.
Computations on the back of a napkin:
TFA: A beam with energy on the order of 2 x 10^18 watts per square centimeter, pulse frequencies up to 75 megahertz, and wavelengths between 1 and 10 micrometers is aimed at a two-layer, 20-centimeter-diameter target.
Assumption: the entire target is hit.
– Area of the target: 314 sq cm. => Total power required/pulse: 0.6e+21 W.
– Considering a femptosecond pulses => Total energy/pulse: 0.6e+6 J
– Taking into consideration the frequency of pulses (75MHz) => Laser source power (no efficiency considerations): 45e+12 W
Hell, this can't be! Not for the TFA's: Each pulse of the laser should generate roughly 100 000 particles, making the method tremendously efficient, says Chapman.
Assumption: the laser beam is focused
–With a maximum wave-length of 10 micrometers, let's say the laser is focused to a circle with a radius 10 times the wave-length.
– Redoing all the math for a targeted area of 0.2 mm diameter - would still lead to a needed value of 450 kW for the laser source (again, at 100% efficiency).
And all of this to get 100000 alpha particles? Meaning 33333 reactions of 8.7 MeV each=290000MeV=4.65e-8 J? Put the pulse frequency again and, per second, the generated kinetic energy is <3.5 J?
Intelligence takes work? First I've heard about that. Sure, utilising intelligence to create new things, undertake science, refine and present new ideas, learning, building etc -- they all take work. I.e. it takes work to use your intelligence to its full potential.
And the moment you stop putting your intelligence to work, its level declines. A new-born with a potential IQ over the average will not realize the potential if raised by wolfs (or politicians).
"This phone is super secret, don't say a word!" actually means "Please, please, please, please give us some press for this. Even bad press. Just anything you can say that isn't another iPhone or Android story is great."
With the continuation: "What? You have no camera on you? Did the guy at the entrance asked you to drop it? Here... have this WP7 phone, 't has a great camera"
Anyhow, when you need to perform maintenance or upgrades, you have to touch hundreds of workstations. Yes, there are ways to do this more easily, but it's easier with Citrix. And it's most easy if you just have web server software to upgrade.
You can have both of the world with REST (no session logic on the server) and a framework that accepts plugin-updates (e.g. Eclipse framework). I heard cases in which stock trading apps were crafted this way - can't respond fast enough in a simple page in browser (mainly because of the server overload), can't afford not to update them, can't imagine a way in which the deployment a new version can be achieved by "download the installer and run it" means.
Nope, photons take discrete energy states when emitted (based on the potential difference between the electrons new energy level and it's energy level prior to the change). They are not analog.
At source... maybe. But they are the instant you what to localize them in space or time - like in using certain aperture/exposure values when shooting the photo.
My Predictions:
- a Google Gaming Toolkit for making games on their platform.
- host your games on their infrastructure just like they do with Google App Engine.
- social networking built into games linked via Buzz, Wave, and your Google account.
- Profit!
I bet you're right. TFS
"looking for a strategic, technical and game-loving Product Manager to drive Google's gaming strategy. You will design strategies for game distribution and discovery, player identity, game mechanics, and more."
They develop violent feelings but they take it all out on their fictional characters. They stop going outside (thousands of years of children spent their days outside because they lacked TV and vidya) so they aren't around other people even if they have all kinds of aggressive hormones flowing to compel them to pick a fight with the next person they see.
I'm not sure I like this line of the argumentation. To me it's very much like saying: "Drugs actually reduce the crime rate: most of the time a junkie is stoned, so he doesn't have time to do it". (not that I equate violent games with drugs, neither I'm convinced that playing violent games increase the agresiveness in real-life).
Is there anyone in any government anywhere with a brain? I look around and see people out of work, rampant crime, war, and these asshole have time for this stupid shit?
How else so many wars can be supported with so many people out of work and rampant crime? Someone need to foot the bill - why do you think ACTA is kicking? Errr... you are not suggesting these wars need to stop, are you?
'The cost of the proposed scheme is not indicated, but is likely to be substantial, including the running cost of two non-judicial independent bodies and the cost to ISPs of permanently blocking websites,' Consumer Focus said.
MAFIAA: austerity my ass, we don't give a fuck about UK deficit (to surpass the Greece one), you just take care I still receive my money
Couple interesting facts about facebook and the 250 billion minutes in may.
1) Most people spend time on facebook to waste time with nothing better to do. Much like how people watch infomercials in the early hours for no good reason.
2) Most of those billions of minutes were just me and my guildies afk'n in SW with facebook open in the background.
Why do you think these numbers mean sweet f all?
You may be right, I don't argue with that. But my point stands: 'tis still a waste (as also a waste is my GP post, your reply and me replying to you now) .
Slashdot Mirror
Specifically, I would like to know the power requirements for a piece of equipment like this.
Computations on the back of a napkin:
TFA: A beam with energy on the order of 2 x 10^18 watts per square centimeter, pulse frequencies up to 75 megahertz, and wavelengths between 1 and 10 micrometers is aimed at a two-layer, 20-centimeter-diameter target.
Assumption: the entire target is hit.
– Area of the target: 314 sq cm. => Total power required/pulse: 0.6e+21 W.
– Considering a femptosecond pulses => Total energy/pulse: 0.6e+6 J
– Taking into consideration the frequency of pulses (75MHz) => Laser source power (no efficiency considerations): 45e+12 W
Hell, this can't be! Not for the TFA's: Each pulse of the laser should generate roughly 100 000 particles, making the method tremendously efficient, says Chapman.
Assumption: the laser beam is focused
–With a maximum wave-length of 10 micrometers, let's say the laser is focused to a circle with a radius 10 times the wave-length.
– Redoing all the math for a targeted area of 0.2 mm diameter - would still lead to a needed value of 450 kW for the laser source (again, at 100% efficiency).
And all of this to get 100000 alpha particles? Meaning 33333 reactions of 8.7 MeV each=290000MeV=4.65e-8 J? Put the pulse frequency again and, per second, the generated kinetic energy is <3.5 J?
Nah, something IS fishy!
This process could possibly be used to help start manufacturing on other words, with Mars being mostly sand.
Dust-storms - who's gonna clean the lens?
They're talking about Assbook, but for most users, the difference is indistinguishable.
How are the two different from FaeceBook?
People who brag about Texas being so big should well consider that if Alaska were divided in two, Texas would be the THIRD biggest state.
Which will make the comparison of the "greatness" of New Mexico even more unfavourable.
BTW, "bragging" about the size of Texas - far from my mind - I'm not even living in US.
Sorry mate, that's puny. You'd need about 1500 of those to match what a bush fire can do.
The air quality gets so low that you can't go outside
Is this the cause for which ...
Some places make it against the law to even smoke outside.
?
Is this a great state or what?
6 times smaller than the neighbouring Texas.
Over the last 26 hours the fire has grown from 0 acres to about 45,000 acres
At this rate, the entire US will be on fire in about 145 years.
Was there ever a doubt?
Churches (as institutions) putting strict rules on sexuality: it derails the mind from what they are preaching (fear) and their control.
(in the above, church != religion)
Proper photos or some movie clips... or it didn't happen.
(TL;DR abstract - all I could see were some traces of light. Bruce Willis didn't bother)
Intelligence takes work? First I've heard about that. Sure, utilising intelligence to create new things, undertake science, refine and present new ideas, learning, building etc -- they all take work. I.e. it takes work to use your intelligence to its full potential.
And the moment you stop putting your intelligence to work, its level declines. A new-born with a potential IQ over the average will not realize the potential if raised by wolfs (or politicians).
they are going to start Filtering Our Internet AFTER the plan to start Filtering Our Internet was Scapped
So what you're saying is that you're a pedophile. Because the sites that are being censored are primarily child abuse sites.
[Citation direly needed] I don't trust an opaque system. Even more as you took the reserve of slipping in the primarily word in you phrase.
You see, I'm not suffering from ADHD or Alzheimer's, so I still remember that a bunch of legal location were filtered out only some 2 years ago.
This.
Color me uninterested.
Let me color you: this (link from TFA)
(looks like a blue shit).
"This phone is super secret, don't say a word!" actually means "Please, please, please, please give us some press for this. Even bad press. Just anything you can say that isn't another iPhone or Android story is great."
With the continuation: "What? You have no camera on you? Did the guy at the entrance asked you to drop it? Here... have this WP7 phone, 't has a great camera"
what happened to "developers developers developers" ?
They moved into the "O-cloud-O cloud-O cloud"
Anyhow, when you need to perform maintenance or upgrades, you have to touch hundreds of workstations. Yes, there are ways to do this more easily, but it's easier with Citrix. And it's most easy if you just have web server software to upgrade.
You can have both of the world with REST (no session logic on the server) and a framework that accepts plugin-updates (e.g. Eclipse framework).
I heard cases in which stock trading apps were crafted this way - can't respond fast enough in a simple page in browser (mainly because of the server overload), can't afford not to update them, can't imagine a way in which the deployment a new version can be achieved by "download the installer and run it" means.
Nope, photons take discrete energy states when emitted (based on the potential difference between the electrons new energy level and it's energy level prior to the change). They are not analog.
At source... maybe. But they are the instant you what to localize them in space or time - like in using certain aperture/exposure values when shooting the photo.
TFS
users collectively spent the most time at Facebook--250 billion minutes in May,
A huge waste of time and bandwidth.
And what did you waste your time online doing? Oh, hold on, this is slashdot, <del>...</del> obviously.
FTFY
My Predictions: - a Google Gaming Toolkit for making games on their platform. - host your games on their infrastructure just like they do with Google App Engine. - social networking built into games linked via Buzz, Wave, and your Google account. - Profit!
I bet you're right. TFS
"looking for a strategic, technical and game-loving Product Manager to drive Google's gaming strategy. You will design strategies for game distribution and discovery, player identity, game mechanics, and more."
They develop violent feelings but they take it all out on their fictional characters. They stop going outside (thousands of years of children spent their days outside because they lacked TV and vidya) so they aren't around other people even if they have all kinds of aggressive hormones flowing to compel them to pick a fight with the next person they see.
I'm not sure I like this line of the argumentation. To me it's very much like saying: "Drugs actually reduce the crime rate: most of the time a junkie is stoned, so he doesn't have time to do it". (not that I equate violent games with drugs, neither I'm convinced that playing violent games increase the agresiveness in real-life).
Is there anyone in any government anywhere with a brain? I look around and see people out of work, rampant crime, war, and these asshole have time for this stupid shit?
How else so many wars can be supported with so many people out of work and rampant crime? Someone need to foot the bill - why do you think ACTA is kicking?
Errr... you are not suggesting these wars need to stop, are you?
'The cost of the proposed scheme is not indicated, but is likely to be substantial, including the running cost of two non-judicial independent bodies and the cost to ISPs of permanently blocking websites,' Consumer Focus said.
MAFIAA: austerity my ass, we don't give a fuck about UK deficit (to surpass the Greece one), you just take care I still receive my money
Mod parent +Informative, please.
Care to elaborate? 'Cause I still don't see how being over 50 and having etc... would be a motivation to post on /.
</tongue_in_cheek>
Couple interesting facts about facebook and the 250 billion minutes in may.
1) Most people spend time on facebook to waste time with nothing better to do. Much like how people watch infomercials in the early hours for no good reason. 2) Most of those billions of minutes were just me and my guildies afk'n in SW with facebook open in the background.
Why do you think these numbers mean sweet f all?
You may be right, I don't argue with that. But my point stands: 'tis still a waste (as also a waste is my GP post, your reply and me replying to you now) .