Amaryllis, Ginro and Kohaku are chosen to join the inner palace. The science team will need a way to communicate with them in secret, and, eventually, a way for them with the science team.
It works the same way as a crystal radio.
.تعمل مثل المذياع البلوري
Das funktioniert quasi
wie ein Detektorradio.
On appelle ça un récepteur à cristal.
È un meccanismo che si chiama radio a galena.
Da mesma forma que o rádio de cristal.
Точно так же,
как и детекторный радиоприёмник.