One Piece Volume 4 : Crescent Moon

Feat from chapter 34

Zoro is 178cm / 265px = 0.6716cm/px

rock depth is 48px X 0.6716cm/px = 32.2415 cm

luffy is172cm and 334/940px of the panel =35.5319% , 35.5319% of 70° = 24.8723°, 172cm is 24.8723° at 389.98cm

Buchi is 216cm and 131/940px of the panel = 13.9361%, 13.9361% of 70° = 9.7553°, 216cm is 9.7553° at 1,265.5635cm

Angular size between is 373/940 of the panel % = 39.6808, 39.6808% of 70 = 27.7765°

a triangle with sides of 389.98cm, 1,265.5635cm, and a corresponding angle of 27.7765° = a length of 938.2861cm of the third side

a circle of diameter 938.2861 has an area of 691,449.5266cm^2

The destruction is violent-fragmentation of rock which is 69J/cm^3 X the volume , 691,449.5266cm^2 x 32.2415 cm = 22,293,376.4362cm^3 , = 1,538,242,974.1023j or 1.4705 Tons of TNT Building level

Zoro when he recovers from being knocked into the air and pinned when getting back up, is able to overpower this amount of force with just one leg

Buchiis 216cm / 680 = 0.3176cm/px , eye to eye is 42px X 0.3176cm/px = 13.3411cm

eye to eye is 13.3411cm / 71.5px = 0.1865cm/px

boot height is142px X 0.1865cm/px = 26.4957cm

boot length is 190.2px X 0.1865cm/px = 35.4893cm

1,538,242,974.1023N/470.2cm^2= 3,271,465.278822416N/cm^2 or 32,714,652,788.2241Pascals or 32,714.65 MegaPascals or 32.71 GigaPascals, well over the force needed to turn silver into gas and atomize Rock and lightly over the force needed to atomize Aluminum, 7.0524x the force need to turn the human body to Gas but a great deal less then the force to atomize it or on our Attack Potency chart Wall Level

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Feat from chapter 33

(this next feat might be a little iffy )

Captain Kuro is 207 cm or 165px tall, 165/285px = 0.5789, 57.89% of 70° is 40.5263° , 207cm is 40.5263° at 280.35cm

207cm / 165px = 1.2545cm/px

Kuro's claw gloves are 119/285px = 41.75438596%, 41.75438596% of 70° is 29.228070172°, the human eye can see up to one arc minute which is 0.017° , the minimum length of the bag floating in the air is the length of the claw gloves 119px or 29.228070172° and as the bag was frozen in the air the minimum change in distance downward from gravity is the 0.017° and to get a meaningful metric we can just reverse the formula 29.228070172°+ 0.017° = 29.245070172 , 29.245070172° of 70° is 119.0692142595 ,119.0692142595px - 119px = 0.0692142595, 0.0692142595px X 1.2545cm/px = 0.0868292885cm

Captain Kuro moved with his stealth foot technique 2.8035m in 0.013307sec = 210.6785m/s or Mach 0.6122 which is Subsonic+ , in the SBS of vol 7 Oda says he thinks Kuro's movement would be around 100m in 5 or 4 seconds , well in the SBS of vol 42 during a part of the series where another high speed movement technique is introduced he says they are about the same in speed and kuro higher level version of his technique is even faster well the vol 42 technique is that speed and can be controlled ,which at that point in the series the characters are scaling to the speed of lightning which is significantly faster then Mach 210 let alone 210m/s

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Considerations

There are a couple of good feats done on the cliff walls, but the length of the ramp and the cliff wall seem to constantly change panel to panel, making calculating the feats hard and necessarily inconsistent

Besides not scaling back to Luffy as this was from a one-off hypnotism buff, it isn't very much of a destruction feat as he just tore multiple wooden struts but compared to his side the weight of the wooden beam would be a pretty descent lifting feat if it scaled back to him

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