Shashin
Well-known member
Very interesting read (but you will need to hit the translate button if you don't read Spanish):
https://tec.mx/es/noticias/nacional...uelve-problema-fisico-con-siglos-sin-solucion
https://tec.mx/es/noticias/nacional...uelve-problema-fisico-con-siglos-sin-solucion