into a resonant cavity (the oven itself) from a distance of around 6"
In a cavity (like a train), the distance from the source matters much less. Depending on the shape of the cavity there will be some places with higher radiation and some with lower radiation, but generally, if the radiation cannot escape, it has to be absorbed by something.
Planting trees or stirring the oceans
on
Lunar Power
·
· Score: 1
Planting trees sounds like a good employment measure. (I'm always joking about stirring the sea in order to allow salts (natural manure) from deep parts of the sea can reach the upper layers which receive more sunlight. This would rapidly increase the amount of plankton and thus help reduce CO_2.)
Anyway, i think someone who persistently says the earth was a closed system should be modded a troll rather than interesting.
In parts of Japan appearently you can already get a 100Mbit connection through fibre cables to your house. (Those who cannot read japanese, see the image . Not informative, but you can imagine your house in place and have nice dreams.) The price: JPY6000/month. (about EUR 52, resp. USD 45)
I was wondering for some time if it was just a joke. Well, afaik fibre cables are about the same price as CAT5 cables. One big advantage is that a full duplex fibre segment over a really big distance seems to be less a problem. (A switch every 45km sounds easy)
Too sad that i live in a country that is currently struggling to have ADSL for a fair price.
It should be obvious to everybody that Columbus' exploration cannot possibly be the first to "discover" america, since there already lived a lot of people when Colubus arrived. His discovery was only new for souther europeans. (with an important influence on the european culture)
For the same reason, the chinese were not the first either.
All the kidding about america now being chinese is leaving out the fact that amerika once belongt to the americans.
I am wondering if the distributors themselves don't have too much interest in offering patches upstream, not only with the kernel. Commercial distros have a chance to become "pseudo-proprietary" this way.
I think this is a rather childish behavior and use Debian instead.
What did you think how modern semiconductor devices work? They use quantum effects. Newton did not know too much about the details of electric conduction. Of course things get more complicated when the scale gets smaller.
As i understand your words, you are arguing this way:
The Magna Carta gives a right to merchants under a certain condition. Since this condition is not met, they should lose that right.
However the Magna Carta may not be the only law that provides the merchants with that right. IANAL, and i don't know much about the British legal system, but if there is any logic in it, the following should hold true: your argument will only work, if the spammers argue on base of that part of the Magna Carta, i.e. if they connot find any other law that would give a safe conduct etc. to them.
One of the big misunderstandings in our days is not that the WWW was invented by the same people who had invented the Internet, but that the WWW was the same as the Internet.
The fact that this misunderstanding made it's way into the article may raise some doubt on the author's understanding of the technology that he is talking about. I don't say that Lessig really does not know the difference between the WWW and the Internet, but we should not let too many misunderstandings drip into the discussion. People will copy the misunderstandings and add some new.
Every real photon is polychromatic since the norm of the free monochromatic photon \psi(x,t) = e^{i(kx-\omega t)} would be divergent.
A completely monochromatic photon cannot be localized. On the other hand if you have a localized wave-packet, it is not sharp in the momentum space.
Remember Heisenberg: \Delta x * \Delta p >= \hbar/2. And for photons, momentum p is reciproc colour.
(p = \frac{\hbar}{\lambda})
Less mathematically speaking: don't imagine a photon having a colour. The colour is decided at the measurement. Imagine a photon with a function of wavelengths, some wavelengths will be measured more probably, some will be measured less probably. A conventional LASER would have one peak at a certain wavelength and a fall of on the sides. But with the LASER at hand it will look differently.
Even if the term LASER refers to the process of generation of the laser, i think there is one common property of devices that we like to call a "laser":
A laser is capable of emitting a lot of bosons that are in the same state (with some tolerance).
If you get yourself to accept that a single photon can be polychromatic, you will also be able to imagine coherent polychromatic light. (However I am not sure if it applies to the laser at hand.)
I should do some calculating, before i post. If L is the length of the cavity and l is a wavelength, then the distance of the next wavelength that has a resonance in the cavity is l^2/L and this is VERY small under usual circumstances. I think i should read something about laser basics.
Do they really have a polychromatic laser or is it just a laser that allows the user to choose an arbitrary wavelength in a given range?
The article explains how they get spontaneous emission with a wide range of wavelengths, however it does not explain how to build a cavity that keeps a polychromatic wavepacket (wide in the momentum space) in a stationary state.
I had the chance to play with a 200mW Argon laser last year. It can laze at many different wavelengths, but i can set the cavity only to a discrete set of wavelengths. This was crucial for deciding between the 351.1nm and the 351.4nm (iirc) line. *g*
Finally, as for the Holocaust, it is pretty hard to not notice millions of people all of a sudden disappearing from around you.
Of course the noticed it. The same way people in the USA noticed that a lot of Japanese people were "disappearing" in WW2. (They were brought to concentration camps in the USA.) However this does not answer the question, who was aware of what was going to happen to those people in the concentration camps.
People who are interested in technology tend to be impressed by good technology and not by good business. Why should people think positive about MS's move? They get more power for their business; power which otherwise could be used for better standards and the support of better technology.
Our motto is freedom, equality, fraternity (French Republic). You want to argue the motto should be freedom alone.
We really need all of the three.
It is a great motto. I wish the EU would officially adopt the motto. (I guess the monarchies will not like it.) Thanks to France that they put it on the Euro coins. I am looking forward that some french coins find their way to me here in Austria.
a mere Mercedes versus a Ferrari
I always put it this way: I don't mind that there are rich people, but I do mind that there are poor people.
We already know one of the fundamental antinomies (the meat of the issue): the first sentence of your comment.
Contra negantem principias non est disputandem. (You don't need to argue against those who deny the principles.)
I agree with you that people are not enough aware of their own responsibility, be it with their consumer decisions or with their voting. The EU will need better democratic institutions, but the bigger problem is, that people should start to care for EU issues and should take their national governments into responsibility for EU issues.
Most EU decisions need an unanimity of all the national governments. There is no such thing as an "EU rep". Anyway it does not work too well; the reason is that people don't care what THEIR national governments decide for the EU.
The EU was not founded by a consensus of the citizens. Almost all other countries in the world -- if not all of them -- were not founded by consensus of the citicens either. However the EU was founded with a majority in each of the member countries and unanimity of their national governments. Some countries had a direct poll to join the EU, some countries left the decision to their elected representatives, but all was done by democratic means in compliance with the national constitutions.
objection against the mod
on
The Euro
·
· Score: 1
Who the FUCK is the moderator here? Bill Gates?
It is obvious that the moderations in this thread are strongly biased.
(This is not inteded as an offense against tdye, except she/he/you is/are the moderator.)
Yes in a free market, the government cannot control prices. Where is your argument that we NEED a completely free market?
There are some things that are more important than a free market. A free market does not nescessarily lead to a better economy and even if it did, there are things that are more important than economic prosperty. The EU was not founded with the intent of a stronger economy, it is a more general vision.
Usually we don't have price regulation, it's just an exception because many conservatives would not accept the new currency without it. Many old people have bad experiences with one or more currency changes. Of course it was different circumstances (e.g. some countries were occupied and forced to a currency change), but people feel better with a price freeze.
Because they don't understand, on the fundamental level that Americans do, what a FREE market is, and what it does for the people who succeed in it.
The free market is an illusion. People don't get all the information they would need to decide where to buy their products. This is not a big problem under usual circumstances, but a change of currency is a bit unusual. People have to get used to the new prices, because they don't want to use a calculator all the time.
I think we europeans do understand, what a free market is; we just don't believe in it. The "free market" is not our religion.
Who the hell had the idea that a "kilobyte" means 2^{10} byte instead of 10^3 byte? For the "kilo" it's just an error of 2%, but for "mega" it's 5% and for "tera" it even grows to 10%.
You forgot one point. I understand that it is easily forgotten in our world, where every one of us (in an everyday manner) is confronted with people who are obviously incapable of using technology. However it is a prerequesit for science, that a theory is valid for any person in any place.
Therefore that child does not just have a talent for some specific technology, but he has a gift for performing acts that most other people are not able to -- by principle rather than difficulty.
Not having read the Harry Potter stories, i imagine that it addresses the reader's (the child's) dream of being a very special child. IANAP (I am not a parent), but i think it's a possible way to give children a sence of their own uniqueness.
Slashdot Mirror
In a cavity (like a train), the distance from the source matters much less. Depending on the shape of the cavity there will be some places with higher radiation and some with lower radiation, but generally, if the radiation cannot escape, it has to be absorbed by something.
Planting trees sounds like a good employment measure. (I'm always joking about stirring the sea in order to allow salts (natural manure) from deep parts of the sea can reach the upper layers which receive more sunlight. This would rapidly increase the amount of plankton and thus help reduce CO_2.)
Anyway, i think someone who persistently says the earth was a closed system should be modded a troll rather than interesting.
I thought KDE was one of the few things that Emacs users hate more than vim.
I think copper recycling works fine *g*.
In parts of Japan appearently you can already get a 100Mbit connection through fibre cables to your house. (Those who cannot read japanese, see the image . Not informative, but you can imagine your house in place and have nice dreams.) The price: JPY6000/month. (about EUR 52, resp. USD 45)
I was wondering for some time if it was just a joke. Well, afaik fibre cables are about the same price as CAT5 cables. One big advantage is that a full duplex fibre segment over a really big distance seems to be less a problem. (A switch every 45km sounds easy)
Too sad that i live in a country that is currently struggling to have ADSL for a fair price.
It should be obvious to everybody that Columbus' exploration cannot possibly be the first to "discover" america, since there already lived a lot of people when Colubus arrived. His discovery was only new for souther europeans. (with an important influence on the european culture) For the same reason, the chinese were not the first either.
All the kidding about america now being chinese is leaving out the fact that amerika once belongt to the americans.
I am wondering if the distributors themselves don't have too much interest in offering patches upstream, not only with the kernel. Commercial distros have a chance to become "pseudo-proprietary" this way.
I think this is a rather childish behavior and use Debian instead.
What did you think how modern semiconductor devices work? They use quantum effects. Newton did not know too much about the details of electric conduction. Of course things get more complicated when the scale gets smaller.
As i understand your words, you are arguing this way: The Magna Carta gives a right to merchants under a certain condition. Since this condition is not met, they should lose that right.
However the Magna Carta may not be the only law that provides the merchants with that right. IANAL, and i don't know much about the British legal system, but if there is any logic in it, the following should hold true: your argument will only work, if the spammers argue on base of that part of the Magna Carta, i.e. if they connot find any other law that would give a safe conduct etc. to them.
One of the big misunderstandings in our days is not that the WWW was invented by the same people who had invented the Internet, but that the WWW was the same as the Internet.
The fact that this misunderstanding made it's way into the article may raise some doubt on the author's understanding of the technology that he is talking about. I don't say that Lessig really does not know the difference between the WWW and the Internet, but we should not let too many misunderstandings drip into the discussion. People will copy the misunderstandings and add some new.
Every real photon is polychromatic since the norm of the free monochromatic photon \psi(x,t) = e^{i(kx-\omega t)} would be divergent. A completely monochromatic photon cannot be localized. On the other hand if you have a localized wave-packet, it is not sharp in the momentum space. Remember Heisenberg: \Delta x * \Delta p >= \hbar/2. And for photons, momentum p is reciproc colour. (p = \frac{\hbar}{\lambda})
Less mathematically speaking: don't imagine a photon having a colour. The colour is decided at the measurement. Imagine a photon with a function of wavelengths, some wavelengths will be measured more probably, some will be measured less probably. A conventional LASER would have one peak at a certain wavelength and a fall of on the sides. But with the LASER at hand it will look differently.
Even if the term LASER refers to the process of generation of the laser, i think there is one common property of devices that we like to call a "laser":
A laser is capable of emitting a lot of bosons that are in the same state (with some tolerance).
If you get yourself to accept that a single photon can be polychromatic, you will also be able to imagine coherent polychromatic light. (However I am not sure if it applies to the laser at hand.)
I should do some calculating, before i post.
If L is the length of the cavity and l is a wavelength, then the distance of the next wavelength that has a resonance in the cavity is l^2/L and this is VERY small under usual circumstances. I think i should read something about laser basics.
You are right, thank you!
Do they really have a polychromatic laser or is it just a laser that allows the user to choose an arbitrary wavelength in a given range? The article explains how they get spontaneous emission with a wide range of wavelengths, however it does not explain how to build a cavity that keeps a polychromatic wavepacket (wide in the momentum space) in a stationary state.
I had the chance to play with a 200mW Argon laser last year. It can laze at many different wavelengths, but i can set the cavity only to a discrete set of wavelengths. This was crucial for deciding between the 351.1nm and the 351.4nm (iirc) line. *g*
Finally, as for the Holocaust, it is pretty hard to not notice millions of people all of a sudden disappearing from around you.
Of course the noticed it. The same way people in the USA noticed that a lot of Japanese people were "disappearing" in WW2. (They were brought to concentration camps in the USA.) However this does not answer the question, who was aware of what was going to happen to those people in the concentration camps.
People who are interested in technology tend to be impressed by good technology and not by good business. Why should people think positive about MS's move? They get more power for their business; power which otherwise could be used for better standards and the support of better technology.
All i could find about the abbrev. VA:
;-)
1) The countycode for the Vatican
2) Virtual Acoustic
US law is not yet an issue in the Vatican, therefore i guess it is not where you want to move to.
What is VA in your case?
Thank you for that comment.
Our motto is freedom, equality, fraternity (French Republic). You want to argue the motto should be freedom alone.
We really need all of the three. It is a great motto. I wish the EU would officially adopt the motto. (I guess the monarchies will not like it.) Thanks to France that they put it on the Euro coins. I am looking forward that some french coins find their way to me here in Austria.
a mere Mercedes versus a Ferrari
I always put it this way: I don't mind that there are rich people, but I do mind that there are poor people.
Liberté, Egalité, Fraternité
We already know one of the fundamental antinomies (the meat of the issue): the first sentence of your comment. Contra negantem principias non est disputandem. (You don't need to argue against those who deny the principles.)
I agree with you that people are not enough aware of their own responsibility, be it with their consumer decisions or with their voting. The EU will need better democratic institutions, but the bigger problem is, that people should start to care for EU issues and should take their national governments into responsibility for EU issues. Most EU decisions need an unanimity of all the national governments. There is no such thing as an "EU rep". Anyway it does not work too well; the reason is that people don't care what THEIR national governments decide for the EU.
The EU was not founded by a consensus of the citizens. Almost all other countries in the world -- if not all of them -- were not founded by consensus of the citicens either. However the EU was founded with a majority in each of the member countries and unanimity of their national governments. Some countries had a direct poll to join the EU, some countries left the decision to their elected representatives, but all was done by democratic means in compliance with the national constitutions.
Who the FUCK is the moderator here? Bill Gates?
It is obvious that the moderations in this thread are strongly biased.
(This is not inteded as an offense against tdye, except she/he/you is/are the moderator.)
Yes in a free market, the government cannot control prices. Where is your argument that we NEED a completely free market?
There are some things that are more important than a free market. A free market does not nescessarily lead to a better economy and even if it did, there are things that are more important than economic prosperty. The EU was not founded with the intent of a stronger economy, it is a more general vision.
Usually we don't have price regulation, it's just an exception because many conservatives would not accept the new currency without it. Many old people have bad experiences with one or more currency changes. Of course it was different circumstances (e.g. some countries were occupied and forced to a currency change), but people feel better with a price freeze.
The free market is an illusion. People don't get all the information they would need to decide where to buy their products. This is not a big problem under usual circumstances, but a change of currency is a bit unusual. People have to get used to the new prices, because they don't want to use a calculator all the time.
I think we europeans do understand, what a free market is; we just don't believe in it. The "free market" is not our religion.
The EMU does not have a federal government ;-)
Afaik the euro notes are property of the ECB.
Who the hell had the idea that a "kilobyte" means 2^{10} byte instead of 10^3 byte? For the "kilo" it's just an error of 2%, but for "mega" it's 5% and for "tera" it even grows to 10%.
You forgot one point. I understand that it is easily forgotten in our world, where every one of us (in an everyday manner) is confronted with people who are obviously incapable of using technology. However it is a prerequesit for science, that a theory is valid for any person in any place.
Therefore that child does not just have a talent for some specific technology, but he has a gift for performing acts that most other people are not able to -- by principle rather than difficulty.
Not having read the Harry Potter stories, i imagine that it addresses the reader's (the child's) dream of being a very special child. IANAP (I am not a parent), but i think it's a possible way to give children a sence of their own uniqueness.