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What's the true explanation, free from lies?
Complicated.It would probably take a book.Do you now understand why it's not going to be on the web?
It is on the web already.
a video that covered everything
"lies we tell to children"
Quote from: Bored chemist on 05/01/2023 11:58:37Quote from: hamdani yusuf on 02/01/2023 21:46:16What's the true explanation, free from lies?Complicated.It would probably take a book.Do you now understand why it's not going to be on the web?It is on the web already.Laser Fundamentals I-III | MIT Understanding Lasers and Fiberoptics//www.youtube.com/watch?v=saVE7pMhaxk//www.youtube.com/watch?v=urbZ8CTceu0//www.youtube.com/watch?v=_qixt0NLc9I
Quote from: hamdani yusuf on 02/01/2023 21:46:16What's the true explanation, free from lies?Complicated.It would probably take a book.Do you now understand why it's not going to be on the web?
It's not a reasonable request.
Do you think that MIT's videos in my reply#14 also lies?
Quote from: hamdani yusuf on 18/12/2023 13:15:45Do you think that MIT's videos in my reply#14 also lies?Do they say laser light is monochromatic?Is it?
property number one now some people refer to it as high monochromaticity
the true explanation, free from lies?
on the web already.
So that video repeats the "lies we tell to children" idea that all lasers are monochromatic.So it is clearly not an example of "Quote from: hamdani yusuf on 02/01/2023 21:46:16the true explanation, free from lies?So why did you say such an explanation was Quote from: hamdani yusuf on 05/01/2023 12:03:00 on the web already.And link to the video?
Quote from: hamdani yusuf on 02/01/2023 12:12:09Most introductions of laser say that laser is a source of monochromatic light. This video shows polychromatic laser instead.How many times have I explained the idea of "lies we tell to children"?
Most introductions of laser say that laser is a source of monochromatic light. This video shows polychromatic laser instead.
The whole body of knowledge about lasers is immense and complex.Nearly all of them are practically monochromatic.But not all of them.Most of them are built in Fabry Perot resonators.But not all of them.And there are a stack of other complexities and exceptions.If the "school level" explanations we gave in YT videos tried to include all the caveats and so on, the video would take days and nobody would watch it.If you want a more detailed view, you need to plough through three hours of the MIT videos.And even they don't cover everything.
They can just say that most lasers are monochromatic, without saying that it's a defining characteristics of laser.
You can always add these side notes and complications.But it's likely to confuse newcomers.
If you want a more detailed view, you need to plough through three hours of the MIT videos.And even they don't cover everything.So why did you say they did?
Fortunately, if you realise that you didn't really study the subject, but you just watched a few YT videos, you will be aware that you have many known unknowns.
Now we have that sorted out, can you answer this?Quote from: Bored chemist on 21/12/2023 10:09:14If you want a more detailed view, you need to plough through three hours of the MIT videos.And even they don't cover everything.So why did you say they did?
Did I say that?
It is on the web already.Laser Fundamentals I-III | MIT Understanding Lasers and Fiberoptics
It seems like you are misunderstanding my intention of posting their videos. I tried to show that even reputable sources can provide misleading information.
In response to me saying that the version without lies wouldn't be on the web.
You can simply google it.
I just googled for laser spectrum, and here are some good results.