zlacker

>>belzeb+(OP)
Have you seen the way lasers are used to do this? NDT or non destructive testing has use dual laser systems to create ultrasound for several decades. Check it out if you are interested.

I can try to find that papers if you would like.

>>b0tzzz+hF
I think one of the subjects of my exam for entering engineering schools (a thing we do in France) was about that.

Would really like to see papers on the subject, because I don't really understand how you can use lasers in opaque materials. Will also look at my test to see if it's really about that.

>>belzeb+cL
> I think one of the subjects of my exam for entering engineering schools (a thing we do in France) was about that.

Cool. For which school was it? And Which year? (I'd like to get the subject and read it actually)

>>little+xT
It is this year's entrance exam (PSI) for the École Normale Supérieure and the Polytechnique school.

The subjects have not been officially published. But here's a scanned copy:

https://www.cpge-paradise.com/Concours2021/PhysPSI.pdf

It's in French though!

>>belzeb+hU
I don't speak French at all, but it sounds funny to me that the École is both Normal and Supérieure. Like, make up your mind, school!

>>Stavro+ay1
I don’t speak French either but I like the etymological sense that Superior school means Post-Secondary/College better than the English version. It seems like a logical and efficient way to get the meaning across.

>>VVerti+zt3
That's probably what's happening, but I think I will keep the funny version in my head canon.