Dr. Stone Wiki
Dr. Stone Wiki

Weapon of Science ( () (がく) () () Kagaku no Buki) is the eleventh chapter of Dr. Stone manga.


Less than a moment after his execution in the previous chapter, Senku's lifeless body plumets to the ground.

Tsukasa reflects on the situation, lamenting that in the old world, Senku could have been his first real friend should they have met. He imagines himself partaking in the stories Senku told, befriending Taiju and Yuzuriha, and also bringing along a small girl (whom was not elaborated on until many chapters later).

A sweet fantasy, but a fantasy still; in the real world, Taiju and Yuzuriha are desperately lamenting the death of Senku to Tsukasa's hands. It is now that Tsukasa contemplates the possibility that Taiju might erupt with rage and attack him so relentlessly he'd have to kill him as well, hoping this won't be the case.

Taiju takes action, but comforts Yuzuriha telling that he hasn't lost his mind yet, as he lifts a massive boulder from the ground, making Tsukasa take a defensive stance. Suddenly, he sends the boulder flying high into the air, and Tsukasa is very confused initially by this move.

Tsukasa watches the rock's trajectory, but doesn't lose sight of Taiju, suspecting this attack may be a mere distraction. In watching Taiju however, Tsukasa overlooks how Yuzuriha has sprinted off and tossed a clay pot at him, which he manages to smash with a kick at the last moment, enveloping him in a cloud of what he soon realizes to be black powder, which detonates an instant later, when the stone Taiju tossed hit the ground causing sparks.

Characters in Order of Appearance[]

  • Senku Ishigami
  • Tsukasa Shishio
  • Taiju Oki
  • Yuzuriha Ogawa
  • Unnamed Girl (Fantasy)

Chapter Notes[]

  • An unnamed girl is seen in Tsukasa's fantasy, she is later revealed to be his younger sister.
  • The reason why Tsukasa didn't take notice of Yuzuriha attacking him with black powder, is pointed out to be that he didn't expect a woman to take a fighting role in a stone age survival situation, under the idea that it would be a man's job to protect her. Yuzuriha can fight back because Science gives power to everyone, the weak and the strong.
  • Taiju and Yuzuriha escape with Senku.

Site Navigation[]

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Chapters and Volumes
Volume 1 1234567Extras
Volume 2 89101112131416Extras
Volume 3 17181519202122232425Extras
Volume 4 262728293031323334Extras
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Volume 24 206207208209210211212213214Extras
Volume 25 215216217218219220221222223Extras
Volume 26 224225226227228229230231232Extras
Volume 27 Terraforming4D Science: 14D Science: 24D Science: 3
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Story Arcs
Prologue Saga
Stone Formula Arc
Chapters 1234
Episodes 12
Vs. Tsukasa Arc
Chapters 56789101112
Episodes 345
Ishigami Village Saga
Kingdom of Science Arc
Chapters 131415161718192021222324252627282930313233
Episodes 5678910111213
Village Games Arc
Chapters 34353637383940
Episodes 131415
Village Origins Arc
Chapters 4142434445
Episodes 1617
Stone Wars Saga
Vs. Hyoga Arc
Chapters 4647484950
Episodes 1819
Communications Arc
Chapters 5152535455565758596061626364656667686970717273747576777879808182
Episodes 20212223242526272829303132333435
Source of the Petrification Saga
Age of Exploration Arc
Chapters 8384858687888990919293949596979899 100
Episodes 35Ryusui3637383940
Treasure Island Arc
Chapters 101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138
Episodes 4142434445464748495051525354
The Truth of the Petrification Saga
New America City Arc
Chapters 139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169
Episodes 555657
South America Arc
Chapters 170171172173174175176177178179180181182183184185186187188189190191192193
New Stone World Arc
Chapters 194195196197198199200
Globetrotting Arc
Chapters 201202203204205206207208209210211212
Stone to Space Saga
Moon Mission Arc
Chapters 213214215216217218219220221222223224225226227228229230231232