About the practical benefit of the electromagnetic discovery in Cheops Pyramid

Question

There's this Newsweek article titled "Ancient Egypt: Incredible Electromagnetic Discovery in Great Pyramid of Giza's Hidden Chambers" (here) that says that

Now, an international team of physicists has found that, under the right conditions, the Great Pyramid can concentrate electromagnetic energy in its internal chambers and under its base.

The results, which are published in the Journal of Applied Physics, could help scientists to create new nanoparticles — particles between 1 and 100 nanometers in size — that could be used, for example, to develop highly efficient solar cells or tiny sensors.

Above article links to this article in the Journal of Applied Physics.

Question:

Would the scientist somehow use this pyramid to create the nanoparticles, or did the discovery tell them something about electromagnetism that was not already known?

Answer 1

The scientific interest is to use pyramids in nano technology. They just scaled up their calculation to the size of the pyramid at Gizeh to get media attention. The scientific interest of the Gizeh is zero, but it is great clickbait.

Answer 2

I'm not an expert on nanoparticles, but from reading the article, the paper seems to be describing a geometrical effect of the shape of the pyramid - that it is particularly good at resonating and focusing the energy of the waves at those wavelengths.

So, presumably they are talking about creating nanoparticles with similar geometry, that would have similar properties of focusing EM energy. I highly doubt the pyramid itself would be used to create the particles - it wouldn't provide access to energy levels approaching anywhere near what could be achieved in a particle accelerator, for example.