I would like to add a video on XRF from Applied Science, as the device is not very well known (at least in .cz, I have learned about it only recently). https:/

I would like to add a video on XRF from Applied Science, as the device is not very well known (at least in .cz, I have learned about it only recently). https://www.youtube.com/watch?v=KdfHVcU8U7U https://www.youtube.com/watch?v=KdfHVcU8U7U