Lt. Colonel Thomas Bearden was the expert on all of this. He passed away in February of this year. His site has been taken down.

https://www.psychotronics.org/product-category/uspa-conference-videos/uspa-classic-videos/page/2/

https://www.amazon.com/s?k=thomas+bearden&i=stripbooks&crid=IXXHDKOX8F10&sprefix=thomas+bearden%2Cstripbooks%2C73&ref=nb_sb_noss_1

The other expert (aside from my knowledge over 30 years) is Dutchsinse. Bearden's family just sent him a unique compilation of information, not found anywhere else.

https://www.youtube.com/watch?v=z0Ggmi_6JFU

[They] believe that if they shield the sun, that we won't receive the necessary frequencies/vibrations from the sun. Poppycock.

This is a complex topic, and not summed up easily just by saying, "Tesla." This is the information being scorned and hidden (Bearden's), due to how truthful and accurate it is. Find his documentation while you can.