Making cell phones takes a lot of materials and tools. Senku begins by upgrading their equipment using the waterwheel Chrome and Kaseki invented and built together.
The gears of electrons...
.مسننات الإلكترونات
Das Rad der Elektronen: die Elektronenröhre.
Los engranajes de la electrónica.
Los engranajes de los electrones.
Un engrenage électronique,
un tube à vide.
L'ingranaggio dell'elettronica,
As engrenagens eletrônicas.
Электронные шестерёнки,