Cuddle Fish – A Soft Floating Robot for Safe Physical Interaction
14 points
7 days ago
| 6 comments
| kaikunze.de
| HN
Barathkanna
2 hours ago
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Okay looks cool, but what can this robot actually do? I get the concept and the mechanics, but it’s not obvious what the practical capabilities are. Is it meant as a research platform for soft robotics, a demo of compliant movement, or does it have any specific real-world tasks in mind like inspection, underwater sensing, or manipulation? I’m curious what the intended application is beyond the technical novelty.
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kevinwang
2 hours ago
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It says:

We see potential uses in companionship and affective interaction. The robot’s ability to elicit spontaneous touching and positive emotional responses suggests it could serve in therapeutic settings or as a social presence for people who spend time alone. The quiet operation and gentle movement make it suitable for environments where noise and sudden motions would be disruptive.

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gus_massa
5 days ago
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How does it handle lack or inertia? To float it must be very lightweight, so every time the kids hit it it will go and colide with the walls.

PS: If you have a small kid, helium balloon are a super nice present. Wrap them in paper for an additional surprise. Remember to give it to the children in a closed room.

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Gracana
3 hours ago
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Full article with more pictures and a video at the end: https://dl.acm.org/doi/10.1145/3745900.3746080

It does look cute. I could imagine something like this being at children's museum or something.

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amenghra
3 hours ago
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W̶e̶ ̶s̶e̶e̶ ̶p̶o̶t̶e̶n̶t̶i̶a̶l̶ ̶u̶s̶e̶s̶ ̶i̶n̶ ̶c̶o̶m̶p̶a̶n̶i̶o̶n̶s̶h̶i̶p̶ ̶a̶n̶d̶ ̶a̶f̶f̶e̶c̶t̶i̶v̶e̶ ̶i̶n̶t̶e̶r̶a̶c̶t̶i̶o̶n̶ We see potential uses in ads is where this is probably going...
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regularfry
3 hours ago
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Reminds me of the Festo AirPenguin: https://youtu.be/jPGgl5VH5go?si=01RbG22bteL001QI
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pixelpoet
4 hours ago
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Helium filled eh? I don't think this is a good idea.
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robryk
3 hours ago
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Why? You just need to choose electronics that doesn't use micro mechanical designs that would be damaged by helium. (Or are you pointing at some other reason?)
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regularfry
3 hours ago
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One possible reason (not the GP so I don't know if this is theirs) is that there's a finite amount of helium available, so using it for this sort of use case depletes it for others.

Personally I think a hydrogen version would be hilarious but others might disagree...

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danielbln
2 hours ago
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I was about to argue that surely the consumption of helium in balloons must be tiny compared to industrial use, but apparently it makes up 5-10% of all helium consumption? That is a magnitude more than I thought, and certainly nothing to ignore for a finite and irreplaceable resource that we need for stuff like MRI machines.
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