Glossary entry (derived from question below)
French term or phrase:
il s'agit de l'hypothèse à tester
English translation:
this is the hypothesis that needs to be tested
Added to glossary by
Bertrand Leduc
May 30, 2012 08:25
11 yrs ago
9 viewers *
French term
il s'agit de l'hypothèse à tester
French to English
Science
Physics
Definition of stimulated emission
Everything was fine until I got to the item in question. Of course it's not a problem to translate, but I just don't see what it's doing there - there suddenly comes parachuting down the idea that the hypothesis is being tested.
Any ideas?
Émission stimulée
La vision classique de l'émission stimulée consiste à dire que l'électron peut absorber un photon (avec une probabilité associée au coefficient d'absorption d'Einstein).
Il s'ensuit deux possibilités :
Soit l'électron réémet de façon spontanée et isotrope un photon.
On parle alors d'émission spontanée qui est se produit avec une certaine probabilité associée à une constante de temps.
Comme l'électron est libre (non lié à un atome), l'absorption du photon est couplée à un continuum d'énergie dans l'espace des phases de l'électron.
Il s'ensuit que l'électron peut éventuellement réémettre un photon dans un état différent du photon incident.
Soit l'électron entre en collision avec un autre photon qui provoque l'émission de photons jumeaux.
On parle alors d'émission stimulée, et **il s'agit de l'hypothèse à tester**.
Selon les coefficients d'Einstein, il s'ensuit que cette voie de réémission devrait être très dominante par rapport à l'émission spontanée.
Any ideas?
Émission stimulée
La vision classique de l'émission stimulée consiste à dire que l'électron peut absorber un photon (avec une probabilité associée au coefficient d'absorption d'Einstein).
Il s'ensuit deux possibilités :
Soit l'électron réémet de façon spontanée et isotrope un photon.
On parle alors d'émission spontanée qui est se produit avec une certaine probabilité associée à une constante de temps.
Comme l'électron est libre (non lié à un atome), l'absorption du photon est couplée à un continuum d'énergie dans l'espace des phases de l'électron.
Il s'ensuit que l'électron peut éventuellement réémettre un photon dans un état différent du photon incident.
Soit l'électron entre en collision avec un autre photon qui provoque l'émission de photons jumeaux.
On parle alors d'émission stimulée, et **il s'agit de l'hypothèse à tester**.
Selon les coefficients d'Einstein, il s'ensuit que cette voie de réémission devrait être très dominante par rapport à l'émission spontanée.
Proposed translations
(English)
4 +7 | and this is the hypothesis that needs to be tested | Bertrand Leduc |
4 +4 | and this is the theory that needs to be tested | Tony M |
3 | involves hypothesis testing | liz askew |
References
Spontaneous & Stimulated emission | Wolf Draeger |
Change log
Apr 16, 2013 06:31: Bertrand Leduc Created KOG entry
Proposed translations
+7
37 mins
Selected
and this is the hypothesis that needs to be tested
I think that it should be hypothesis, as hypotheses are individual testable opinions; while theories are collections of hypotheses that are logically linked together into a coherent explanation of some aspect of reality and which have individually or jointly received some empirical support.
Peer comment(s):
agree |
Tony M
: Yes, I think you're right! I wans't entirely sure exactly which was the actual hypothesis in question, but I think I'm getting a clearer idea now.
4 mins
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Thanks Tony!
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agree |
Cyril B.
21 mins
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Thanks Cyril!
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agree |
B D Finch
: Or even a mere "assumption"?
25 mins
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Thank you!
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agree |
Tristan Jimenez
1 hr
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Merci Tristan!
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agree |
Dr Lofthouse
3 hrs
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Thank you!
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agree |
Timothy Lemon
4 hrs
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Thank you!
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agree |
Andrew47
: Hypothesis is definately the correct word here. And I agree with Wolf Draeger that this a high school/undergraduate text.
15 hrs
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Thanks Andrew!
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4 KudoZ points awarded for this answer.
Comment: "Selected automatically based on peer agreement."
+4
12 mins
and this is the theory that needs to be tested
Well, unless I'm missing something, that seems to be the idea, and I don't see why it doesn't fit in your context?
The first idea is well known and has been provien, while the second is only a theory, and more testing needs to be done on this.
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Note added at 30 mins (2012-05-30 08:55:32 GMT)
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Or of course 'assumption' as Chris quite rightly says.
From the rest of the text, it does indeed seem to be the case that this latter notion has yet to be fully proven...
The first idea is well known and has been provien, while the second is only a theory, and more testing needs to be done on this.
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Note added at 30 mins (2012-05-30 08:55:32 GMT)
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Or of course 'assumption' as Chris quite rightly says.
From the rest of the text, it does indeed seem to be the case that this latter notion has yet to be fully proven...
Note from asker:
Yes, I didn't know that the fact that the second idea is only a theory - if this is the case, then indeed there's no problem. And I suppose it IS the case since they say so! |
Peer comment(s):
agree |
ATP522
3 mins
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Thanks, ATP!
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agree |
Savvas SEIMANIDIS
16 mins
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Efharisto, Savvas!
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agree |
Bashiqa
24 mins
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Thanks, Chris!
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agree |
Cyril B.
39 mins
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Merci, Cyril !
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neutral |
B D Finch
: Assumption or hypothesis, rather than "theory".
50 mins
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Thanks, B.! :-)
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37 mins
involves hypothesis testing
http://www.google.co.uk/search?q=On parle alors d'émission s...
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Note added at 41 mins (2012-05-30 09:06:46 GMT)
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Scientific Hypothesis, Theory, Law Definitions
chemistry.about.com/od/chemistry101/a/lawtheory.htm
Learn about the difference between a scientific law, hypothesis, and theory.
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Note added at 41 mins (2012-05-30 09:06:46 GMT)
--------------------------------------------------
Scientific Hypothesis, Theory, Law Definitions
chemistry.about.com/od/chemistry101/a/lawtheory.htm
Learn about the difference between a scientific law, hypothesis, and theory.
Peer comment(s):
neutral |
Tony M
: I don't think 'invovles' really works here in the source text as given.
6 mins
|
Reference comments
13 hrs
Reference:
Spontaneous & Stimulated emission
I'm no expert in physics, so this is not an authoritative entry at all. But I understand claude-andrew's confusion; the two theories don't contradict one another, there is no choice to be made, no test to determine which is valid and which isn't. Unless the text is out of date?
Note from asker:
Exactly, Wolf (and a number of other definitions in the document are out of date). Of course I've searched around for the latest situation, but to no avail. It looks as though the choice is simply between 'hypothesis', 'theory' and assumption' |
Discussion
One could perhaps then interpret the phrase as "and this is the theory we are (now) going to test".
Does the context allow for this?