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Dr. Stone Wiki

The Power of Science ( () (がく) (ちから) Kagaku no Chikara) is the seventy-seventh chapter of the Dr. Stone manga.


The battle for the Cave of Miracles rages on outside while Gen, Senku, and Chrome try making a new weapon of science. Chrome runs out, Gen attempting to stop him but Senku says to leave him be. While Chrome is out scavenging, Senku begins trying to make urea nitrate, a "crappy weapon" but better than nothing.

Meanwhile, Tsukasa and Hyoga beat down swathes of fighters, bolstering the morale of their side. Tsukasa destroys the shock cannon before they can use it again. Most of the fighters have been beaten down, even when they try attacking in groups.

Making the urea nitrate relies on chance, and Senku has terrible luck so it fails, but then Chrome brings a small amoutn of Sulfurina left over from the gun on their tank, giving them new weapon options. Adding soap and doing a few more steps, Senku creates nitroglycerine, an explosive. He needs a way to send it across the battlefield so it doesn't injure anyone, and Gen offers a paper airplane. Dripping some of the nitroglycerine on the tip of the plane, Senku throws it. It lands on the far end of the clearing, exploding.

Characters in Order of Appearance[]


  • Senku tries to make urea nitrate.
    • It fails.
  • Tsukasa destroys the shock cannon.
  • Almost all of the Kingdom of Science fighters are downed.
  • Kohaku confronts Hyoga for a rematch and is defeated.
  • Nitroglycerine is made.

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Volume 1 1234567Extras
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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
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Chapters 194195196197198199200
Globetrotting Arc
Chapters 201202203204205206207208209210211212
Stone to Space Saga
Moon Mission Arc
Chapters 213214215216217218219220221222223224225226227228229230231232