Eiichiro Oda is a genius and he’s incorporated a number of elements into his talent as a screenwriter that are quite interesting and intriguing. However, in some cases it happens that the physics of ONE PIECE match the real thing, this is a concrete example of how the ryou works.
The ryou is the ambition of the land of Wa, a technique that Luffy he learned thanks to the old man in the Wano Kuni hyo. Literally translatable as “Flow“, it’s a kind of Armor Ambition where energy flows through the body. Partially different from Haki, the protagonist had to fully understand the importance of the technique and know how to use it properly.
However, the physics behind which the ryou appears to be working captures the reality of a weapon that actually exists: the HESH balls. As you can see from the clip at the end of the message, which explains the exact workings of the weapon, once this bullet is thrown at an object, it destroys it from the inside with a combination of pressure and stress waves. The effect can be devastating and is now mainly used for building demolitions as the latest weapons have been upgraded to withstand attacks of this type as well.
And you, on the other hand, knew this similarity between the HESH bullets and the Ryou? Let us know with a comment below.