Editing Tsiolkovsky rocket equation (section)

== Experiment of the boat==
[[Image:Exp%C3%A9rience_de_Tsiolkovsky.gif|upright=2|thumb|Experiment of the boat by Tsiolkovsky.]]

In order to understand the principle of rocket propulsion, Konstantin Tsiolkovsky proposed the famous experiment of "the boat".{{cn|date=February 2025}} A person is in a boat away from the shore without oars. They want to reach this shore. They notice that the boat is loaded with a certain quantity of stones and have the idea of quickly and repeatedly throwing the stones in succession in the opposite direction. Effectively, the quantity of movement of the stones thrown in one direction corresponds to an equal quantity of movement for the boat in the other direction (ignoring friction / drag).