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AR Fluid Simulation Demo

news.ycombinator.com Unknown 2025-10-11 19:38:53

Fluid Simulation (Demo) 2025 I wanted to see what happens when a fluid simulation collides with real objects. To test this idea I created this demo. To capture the shapes of objects, I mounted a webcam above the screen. A polarization filter blocks the image displayed on the screen, preventing a feedback loop, while still allowing the camera to see anything placed in front of it. The video feed is then aligned with the computer-generated simulation, so the fluid can react to those cutout obj

Topics: demo fluid objects screen simulation
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Ultrathin business card runs a fluid simulation

news.ycombinator.com Unknown 2025-12-01 08:41:04

This repo contains all files related to the flip-card project, which is a business card that runs a fluid-implicit-particle(FLIP) simulation. The PCB design files are in the "kicad-pcb" folder. The flip-card project is inspired by mitxela's fluid simulation pendant project https://mitxela.com/projects/fluid-pendant The fluid simulation logic is contained in a standalone crate, which is in the "fluid_sim_crate" folder. This is based off the work by Matthias Müller (https://github.com/matthias-r

Topics: flip fluid folder project simulation
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The chemical secrets that help keep honey fresh for so long

news.ycombinator.com Unknown 2026-01-29 20:04:41

But honey is an unusual case, and here is why. It's made by honeybees from flower nectar, and starts out as a warmish, watery, sugary fluid, the kind of thing that seems like it would be the purest bacteria bait. The bees concentrate the nectar on the way to the hive, removing some of the water, use enzymes to raise the acid content in the fluid discouraging some forms of microorganisms from growing, and break down the sugars into simpler ones, then decant the stuff into honeycomb chambers.

Topics: acid bait break fluid nectar
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Show HN: Fast Thermodynamic Calculations in Python

news.ycombinator.com Unknown 2026-02-07 08:48:12

Gaspype provides two main classes: fluid and elements . A fluid object can have multiple compositions. A multidimensional fluid object can be created for example by multiplication with a numpy array: In some cases not the molecular but the atomic composition is of interest. The elements class can be used for atom based balances and works similar: el = gp . elements ({ 'N' : 1 , 'Cl' : 2 }) el . get_mass () np . float64 ( 0.08490700000000001 ) A elements object can be as well instantiated fr

Topics: 00 elements fluid gp object
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