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phetsims / beers-law-lab

"Beer's Law Lab" is an educational simulation in HTML5, by PhET Interactive Simulations.
http://phet.colorado.edu/en/simulation/beers-law-lab
GNU General Public License v3.0
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Solute particles jump around when tub is draining #238

Closed KatieWoe closed 5 years ago

KatieWoe commented 5 years ago

Test device: Dell Operating System: Win 10 Browser: Chrome Problem description: Minor bug found in https://github.com/phetsims/QA/issues/309. When there are a smaller number of particles sitting at the bottom of a saturated solution, draining the solution causes some of the particles to move along the bottom wildly until draining stops. Seen in older versions, so not connected to the above release. Steps to reproduce:

  1. Select a solute and add it until you have a saturated solution with particles on the bottom
  2. If there are too many particles, use the dropper to dilute it until you have a smaller number
  3. Drain some of the solution and watch the particle behavior

Screenshots: dancingsalt

Troubleshooting information (do not edit):

Name: ‪Concentration‬ URL: https://phet.colorado.edu/sims/html/concentration/latest/concentration_en.html Version: 1.3.13 2019-04-22 08:50:58 UTC Features missing: touch Flags: pixelRatioScaling User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/73.0.3683.103 Safari/537.36 Language: en-US Window: 1536x722 Pixel Ratio: 2.5/1 WebGL: WebGL 1.0 (OpenGL ES 2.0 Chromium) GLSL: WebGL GLSL ES 1.0 (OpenGL ES GLSL ES 1.0 Chromium) Vendor: WebKit (WebKit WebGL) Vertex: attribs: 16 varying: 30 uniform: 4096 Texture: size: 16384 imageUnits: 16 (vertex: 16, combined: 32) Max viewport: 16384x16384 OES_texture_float: true Dependencies JSON: {"assert":{"sha":"7d27130a","branch":"HEAD"},"axon":{"sha":"9bf8f88c","branch":"HEAD"},"babel":{"sha":"735d57d7","branch":"master"},"beers-law-lab":{"sha":"10281f45","branch":"HEAD"},"brand":{"sha":"b040cac5","branch":"HEAD"},"chipper":{"sha":"0ebc6913","branch":"HEAD"},"concentration":{"sha":"b4e5af61","branch":"HEAD"},"dot":{"sha":"04efe0bc","branch":"HEAD"},"joist":{"sha":"a9ad0567","branch":"HEAD"},"kite":{"sha":"dce9765e","branch":"HEAD"},"nitroglycerin":{"sha":"ad3cb990","branch":"HEAD"},"phet-core":{"sha":"c48bf320","branch":"HEAD"},"phetcommon":{"sha":"3a85ef86","branch":"HEAD"},"phetmarks":{"sha":"3fdfece0","branch":"HEAD"},"scenery":{"sha":"864e3a56","branch":"HEAD"},"scenery-phet":{"sha":"2b60b8e4","branch":"HEAD"},"sherpa":{"sha":"e90b735f","branch":"HEAD"},"sun":{"sha":"6f66368f","branch":"HEAD"},"tandem":{"sha":"29f64233","branch":"HEAD"}}
pixelzoom commented 5 years ago

Transferring this issue from concentration to beers-law-lab repo, since the former is a subset of the latter.

pixelzoom commented 5 years ago

This is a duplicate of https://github.com/phetsims/beers-law-lab/issues/175. We thought that issue had mysteriously corrected itself, but apparently not. I'm going to move the info in https://github.com/phetsims/beers-law-lab/issues/238#issue-436825355 to #175, and close this as a duplicate.