Superfluids are intriguing states of matter in which particles behave like a giant collective wave, allowing them to flow without any friction. When this fluid flows past a fixed obstacle at a velocity below a specific threshold, it moves around it without slowing down or exerting any drag. Abo...

Source: [Phys.org](https://phys.org/news/2026-06-tiny-superfluid.html)

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