B Spiral piece of wood moves upstream

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A video shows a spiral piece of wood moving in a stream with a snake-like motion, while another video depicts a similar piece floating in a container that moves upstream when water is poured in. Participants speculate about the possibility of a string being involved, noting the wood's movement resembles being pulled. Observers point out the lack of visibility of the front end of the stick and mention that illusionists often use fishing line, which is undetectable to fish. The discussion concludes by stating that the thread will not delve into debunking pseudoscience or fake videos.
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Hi I have found a video which is composed of 2 videos. In the first one you can see that a spiral branch is put into a stream and starts to move by itself in a snake like motion.

In the second video similar spiral piece of wood is floating in a container and then water is poured into it and it starts to move upwards the stream of water. How's that possible? Thanks

 
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i wouldn't be surprised if a bit of string was involved.
 
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sophiecentaur said:
i wouldn't be surprised if a bit of string was involved.
That was my thought too. I can’t see the string, but it certainly moves as though it were being pulled by string.

The first one, in particular, seems like string. There is a wake, and they carefully avoid showing the front end of the stick before it is submerged.
 
Illusionists use fishing line. Fish can’t see it either.
 
Since we don't debunk pseudoscience or fake videos, thread is done.
 
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