: Weapons Of Science - 3

: Senku, Taiju, and Yuzuriha travel to Hakone to find a hot spring, which serves as a vital source of sulfur.

: Corresponds to the early chapters of the Prologue Saga in the original manga by Riichiro Inagaki and Boichi. Poprojo - Adult Swim Content Rating Archive - Dr. Stone 3 : Weapons of Science

: Available on Crunchyroll and Amazon Prime Video . : Senku, Taiju, and Yuzuriha travel to Hakone

: To buy time, Senku makes it appear as though they fled in a hurry, attempting to mislead the perceptive Tsukasa while they gather materials. Scientific Concepts Explored Stone : Available on Crunchyroll and Amazon Prime Video

Watch a recap of the tactical shifts and scientific breakthroughs in this episode: Dr. Stone: Season 1 Part 1 (Full Recap) YouTube• Nov 21, 2020 Episode Summary

: Senku identifies three essential ingredients for gunpowder: sulfur, charcoal (from burnt wood), and potassium nitrate (sourced from nitric acid found in the cave).

After Tsukasa reveals his murderous intent to "cull" the older generation, Senku determines that the only way to protect his friends and his goal of rebuilding civilization is through "weapons of science". Specifically, he targets the creation of as a deterrent. Key plot points include: