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Knowledge Thread |
daeid
Joined: Jan 06, 2004
Posts: 30
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knowledge comes in many different forms, to reach many different intended audiences..
anyways..
all my studying of latin we never strung words together, that seemed to be an english innovation. for each word needed to have a particular ending (declention?) to be related to the other words.. but we didn't get into chemical names, however i was under the impression that they were latin names for elements, et cetera, however when you take two latin words and put them together is it still a latin word?
could be wrong...
dave | |
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daeid
Joined: Jan 06, 2004
Posts: 30
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i do however have something worthwhie to share..
humans are the only species on the earth that does not follow the laws of nature...
the basic laws of nature go as follows...
1. when a species food supply diminishes, the population decreases. (GMO's, and other artificial food sources)
2. when a species food supply increases, the popluation increases. (i suppose we follow this one)
3. a species only direct competition for a food source is within the same species (insecticides, etc.)
4. evolution is progress that a species makes towards adaptation, generaly due to environmental changes. (we adapt externally creating new inventions that keep us from having to physically adapt to climate changes, we modify the landscape, build flood walls and dams, farm, etc.)
enough said?
dave |
kimcheeboi
Joined: Dec 19, 2003
Posts: > 500
From: Abducted by hot blondes to Les
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your liver can recover from more than 60% damage.
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[ This Message was edited by: kimcheeboi on 2004-09-23 05:32 ] |
daeid
Joined: Jan 06, 2004
Posts: 30
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no one can solve the paradox of schrodinger's cat.
Schrödinger's cat is a thought experiment In philosophy, physics, and other fields, a thought experiment (from the German Gedankenexperiment) is an attempt to solve a problem using the power of human imagination. These experiments are used to attempt to understand something about the universe. Thought experiments have been used to pose questions in philosophy at least since Greek antiquity; a famous example is Plato's cave, but others pre-date Socrates. In physics and other sciences many famous thought experiments date from the nineteenth and especially the twentieth century, but examples can be found at least as early as Galileo.
..... Click the link for more information. devised by Erwin Schrödinger Erwin Schrödinger (August 12, 1887 – January 4, 1961) was an Austrian physicist famous for his contributions to quantum mechanics, especially the Schrödinger equation, for which he won the Nobel Prize in 1933. He proposed the Schrödinger's cat thought experiment, and he had a life-long interest in Vedanta.
Biography
Early years
In 1887, Schrödinger was born,
..... Click the link for more information.
that attempts to illustrate the incompleteness of the theory of quantum mechanics
Quantum mechanics is a physical theory which at very small distances produces results that are very different and much more accurate than the results of classical mechanics. It is the underlying framework of many fields of physics and chemistry, including condensed matter physics, quantum chemistry, and particle physics. It is derived from a small set of basic principles, and applies to
..... Click the link for more information.
when going from subatomic to macroscopic systems. The experiment proposes: A cat For alternative meanings see cat (disambiguation).
The cat (also called domestic cat, or house cat) is a small feline carnivorous mammal that has been domesticated for approximately 7000 years. Its scientific name is Felis silvestris catus or Felis silvestris domesticus, however the species is sometimes referred to as Felis domesticus or Felis catus.
..... Click the link for more information.
is placed in a sealed box. Attached to the box is an apparatus containing a radioactive nucleus and a canister of poison gas. The experiment is set up so that there is a 50% chance of the nucleus decaying in one hour. If the nucleus decays, it will emit a particle that triggers the apparatus, which opens the canister and kills the cat. (According to quantum mechanics, the unobserved nucleus is described as a superposition Quantum superposition occurs when an object simultaneously "possesses" two or more values for an observable quantity (e.g. the position or energy of a particle).
More specifically, in quantum mechanics, any observable quantity corresponds to an eigenstate of a Hermitian linear operator. The linear combination of two or more eigenstates results in quantum superposition of two or more values of the quantity. If the quantity is measured, the projection postulate states that the state will be randomly collapsed onto one of the values in the superposition (with a probability proportional to the amplitude of that eigenstate in the linear combination).
..... Click the link for more information.
(mixture) of "decayed nucleus" and "undecayed nucleus".) However, when the box is opened the experimenter sees only a "decayed nucleus/dead cat" or a "undecayed nucleus/living cat." The question is: when does the system stop existing as a mixture of states and become one or the other? The purpose of the experiment is to illustrate that quantum mechanics is incomplete without some rules to describe when the wavefunction collapses In quantum mechanics, the collapse of the wavefunction is a name given historically to one of two processes by which quantum systems apparently evolve. It is also called collapse of the state vector.
In general, quantum systems exist in a superposition of basis states, and evolve according to the time dependent Schrödinger equation. The contribution of each basis state to the overall wavefunction is called the amplitude. However, when the wavefunction collapses, from an observer's perspective the state seems to "jump" to one of the basis states and uniquely acquire the value of the property being measured that is associated with that particular basis state.
..... Click the link for more information.
and the cat becomes dead or alive instead of a mixture of both.
Contrary to popular belief, Schrödinger did not intend this thought experiment to indicate that he believed that the dead-alive cat would actually exist; rather he considered the quantum mechanical theory to be incomplete and not representative of reality in this case. Since a cat clearly must either be alive or dead (there is no state between alive and dead) surely the same must be true of the nucleus. It must be either decayed or not decayed.
The original article appeared in the German magazine Naturwissenschaften ("Natural Sciences") in 1935: E. Schrödinger: "Die gegenwärtige Situation in der Quantenmechanik" ("The present situation in quantum mechanics"), Naturwissenschaften, 48, 807, 49, 823, 50, 844 (November 1935). It was intended as a discussion of the EPR article The EPR paradox arises in a thought experiment which shows that quantum mechanics leads to very counter-intuitive and paradoxical consequences. It is named after Einstein, Podolsky, and Rosen, who published the idea in 1935. It is also referred to as the EPRB paradox after Bohm, who improved the formulation of the thought experiment.
The paradox defined
The EPR paradox draws attention to a phenomenon predicted by quantum mechanics known as quantum entanglement, in which measurements on spatially separated quantum systems can instantaneously influence one another. As a result, quantum mechanics violates a principle formulated by Einstein, known as the principle of locality or
..... Click the link for more information.
published by Einstein, Podolsky and Rosen in the same year. Apart from introducing the cat, Schrödinger also coined the term "entanglement Quantum entanglement is a quantum mechanical phenomenon in which the quantum states of two or more objects have to be described with reference to each other, even though the individual objects may be spatially separated. This leads to correlations between observable physical properties of the systems that are stronger than any classical correlations. As a result, measurements performed on one system may be interpreted as "influencing" other systems entangled with it. However, no information can be transmitted through entanglement.
..... Click the link for more information. " (German: Verschränkung) in his article.
dave |
kimcheeboi
Joined: Dec 19, 2003
Posts: > 500
From: Abducted by hot blondes to Les
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Something i've wondered about that little problem: isn't the whole problem in itself a fallacious analogy?
Yeah, supercooled substances and all that superconductor stuff allows something to be two opposite things and whatnot, but how can you expect a cat to be in two states?
I don't know that much about all this metaphysics crap so im just wondering if you can clarify, into layman's terms.
[addsig] |
methylated_spirit
Joined: Jul 07, 2004
Posts: > 500
From: Bonnie Scotland
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Quote:
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On 2004-09-23 06:30:00, kimcheeboi wrote:
your liver can recover from more than 60% damage.
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Thank heavens!
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[ This Message was edited by: methylated_spirit on 2004-09-23 09:20 ]
[ This Message was edited by: masseur on 2004-09-23 12:25 ] |
Vlammetje
Joined: Mar 01, 2003
Posts: > 500
From: Den Haag
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ok meths why did you have to break the thread?
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scotsboyuk
Joined: Jun 02, 2003
Posts: > 500
From: UK
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@kimcheeboi
Quantum Mechanics, not metaphysics. The case of the cat isn't all that strange when one understands the underlying principles.
"I may be drunk my dear woman, but in the morning I will be sober, and you will still be ugly." WSC |
methylated_spirit
Joined: Jul 07, 2004
Posts: > 500
From: Bonnie Scotland
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What on earth is going on???
Hello, Scroto!
U.G.L.Y. You ain't got no alibi, you ugly! |
Vlammetje
Joined: Mar 01, 2003
Posts: > 500
From: Den Haag
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YOU mr meths, have some dodgy html in your last posts (probably by editing it when the quote was there) which has caused the page to break
It's all your fault!
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mince-inside
Joined: May 09, 2004
Posts: 452
From: Made in Alnwick living in Scot
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It's all OK now, thanks to @massuer, so all the toys can go back in the pram.
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methylated_spirit
Joined: Jul 07, 2004
Posts: > 500
From: Bonnie Scotland
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Indeed it probably was. However, i also stood up, and admitted my error to masseur who kindly fixed it. OKAY?
Hello, Scroto!
U.G.L.Y. You ain't got no alibi, you ugly! |
kimcheeboi
Joined: Dec 19, 2003
Posts: > 500
From: Abducted by hot blondes to Les
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Quote:
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On 2004-09-23 10:18:37, methylated_spirit wrote:
Quote:
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On 2004-09-23 06:30:00, kimcheeboi wrote:
your liver can recover from more than 60% damage.
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_________________
Thank heavens!
_________________
Hello, Scroto!
P800,P900,LG8110
V =
[ This Message was edited by: methylated_spirit on 2004-09-23 09:20 ]
[ This Message was edited by: masseur on 2004-09-23 12:25 ]
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yeah i think i stopped just short of cirrhosis!
@scotsboy-yeah physics,  was never a big fan of physics...
[addsig] |
scotsboyuk
Joined: Jun 02, 2003
Posts: > 500
From: UK
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People who quote extensive examples pertaining to quantum mechanics in posts to the Esato forum might wish to note that very few will read their posts and fewer still will understand them.
"I may be drunk my dear woman, but in the morning I will be sober, and you will still be ugly." WSC |
daeid
Joined: Jan 06, 2004
Posts: 30
PM |
so the simplest way i can explain the situation is this...
there is a cat inside of this box (you can not see into the box nor can any cameras) also inside of the box is this device that has a 50/50 chance of going off and a small nuclear reaction takes place and the cat dies.. the other chance is that the cat is alive..
the basic principle of quantum physics is that everything represents features of a wave and a particle depending how it is measured. and it is the consciousness measuring that decides either how fast something is moving, or where it is.. but you can't determine both.. the more you know about one the less you know about the other..
anyways..
after five or so minutes the device either goes off or does not, however logic tells us there is either a living or a dead cat inside, quantum physics says at this point there is a superposition of a live and dead cat inside, and when we open the door the cats fate is truly determinate and sealed.
can you believe in a living/dead cat existing?
dave | |
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Posted: 2004-09-23 05:47
