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.
We use the hefty weight of mercury 
to catch the air as it falls,
،سنستعمل وزن الزئبق الثقيل لامتصاص الهواء أثناء سقوطه
Nós precisamos usar o considerável peso do 
mercúrio para sugar o ar assim que ele cai,