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Hard Knocks Crafting Club (スパルタ工作クラブ Suparuta Kōsaku Kurabu) is the fifty-third chapter of Dr. Stone manga.

Summary

Senku uses Chrome and Kaseki's water wheel to make a water-powered generator, Gen Asagiri praises Senku for his accomplishments; Senku tells Gen to to thank the two who made the wheel. Senku comes up with an idea to store the electricity by using lead plates in a sulfuric acid solution stored in a glass container.

Ginro and Kinro are relieved that they do not have to power the generator by hand, but the water wheel will. Kohaku grins that the fighters can focus on training instead of powering the generator. Senku also uses the water generator to automate the iron furnace, and upgrade it to level 3. Kohaku's father is delighted by this, because now more people can focus on collecting food for the winter.

Senku then tells Gen that he will be making a light bulb next by using mercury to trap air, Gen then expresses that nothing can surprise him anymore.

The scene then later skips two months later, and winter arrived and they light up a large Christmas tree with their new invention; the light bulb. Chrome then proposes the idea of going mining, because now they can go deeper into the caves because of their new invention. Chrome, Senku and Gen, start their excavation in to the depths of the caves.

Character in Order of Appearance


Trivia

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Chapters and Volumes
Volume 1 1234567Extras
Volume 2 89101112131416Extras
Volume 3 17181519202122232425Extras
Volume 4 262728293031323334Extras
Volume 5 353637383940414243Extras
Volume 6 444546474849505152Extras
Volume 7 535455565758596061
Volume 8 626364656667686970
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Volume 12 9899100101102103104105106
Volume 13 107108109110111112113114115
Volume 14 116117118119120121122123124
Volume 15 125126127128129130131132133
Volume 16 134135136137138139140141142
Chapters not yet in tankōbon format 143144145146147148149150151152153154155156157158159160161162163164165166
[v  e]
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 2021222324
Source of the Petrification Saga
Age of Exploration Arc
Chapters 8384858687888990919293949596979899 100
Episodes
Treasure Island Arc
Chapters 101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138
Episodes
The Truth of the Petrification Saga
New America City Arc
Chapters 139140141142143144145146147148149150151152153154155156157158159160161162163164
Episodes

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