Galileo Thermometer

Canjin yanayin zafin yanayi zai haifar da canjin yanayi na zafin ruwa, kwallaye masu launuka zasu motsa sama da ƙasa daidai da bambancin ƙarfi. Mafi ƙarancin ɗayan kwallaye masu iyo yana nuna yanayin zafin yanzu. Yana kama kamili, asalin kayan da ba gurɓatacce ba kuma gurɓatacce. An shirya shi sosai don jigilar nesa.