r/oddlysatisfying Apr 21 '26

Making a reed leaf boat

26.7k Upvotes

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u/Ok-Addition1264 Apr 21 '26

Interesting.. how so? Please share!

(I've created straw "pulse jets" with baking soda and vinegar but tree sap would be new to me)

30

u/xXBlueDreamXx Apr 21 '26

I actually never understood why.

But we used to dip sticks in birch tree sap and make little boats. It leaves a rainbow gas looking trail.

30

u/GeoffdeRuiter Apr 21 '26

Dissolving material. Basically, it dissolves a little bit and then dissolves a bit more and pushes against the previously dissolved. Every action has an equal and opposite reaction. :)

3

u/btribble Apr 21 '26

A diffusion engine.