oliver-phet
commented
5 years ago Additional info from user:
I haven’t tried with fewer sensors, but 8 students all worked on this with the Chromebooks, and all of them had the problem. It starts as soon as I drag a 2nd charge into the screen, and the noise moves if I move the charges around.
KatieWoe
Test device: Google Chromebook
Operating System: Google
Browser: Chrome
Problem description: Noise shows up, hindering view of charges
Steps to reproduce: turn on grid. Place 16 sensors in a square. Place one positive and one negative charge near the middle of the sensor square.
Severity: Significant
Screenshots:
Troubleshooting information (do not edit): Name: Charges And Fields
URL: https://phet.colorado.edu/sims/html/charges-and-fields/latest/charges-and-fields_en.html
Version: 1.0.11 2018-11-06 20:14:22 UTC
Features missing: touch
User Agent: Mozilla/5.0 (X11; CrOS armv7l 11021.81.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.110 Safari/537.36
Language: en
Window: 1366x610
Pixel Ratio: 1/1
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: 15 uniform: 1024
Texture: size: 8192 imageUnits: 16 (vertex: 16, combined: 96)
Max viewport: 8192x8192
OES_texture_float: false
Dependencies JSON: {"assert":{"sha":"7d27130a","branch":"HEAD"},"axon":{"sha":"1fd91832","branch":"HEAD"},"babel":{"sha":"4e1577ba","branch":"master"},"brand":{"sha":"b087e453","branch":"HEAD"},"charges-and-fields":{"sha":"7488f1de","branch":"HEAD"},"chipper":{"sha":"72215407","branch":"HEAD"},"dot":{"sha":"3f60cfcc","branch":"HEAD"},"joist":{"sha":"fc2e421b","branch":"HEAD"},"kite":{"sha":"3b656b9a","branch":"HEAD"},"phet-core":{"sha":"c48bf320","branch":"HEAD"},"phetcommon":{"sha":"0171c9a9","branch":"HEAD"},"scenery":{"sha":"3924ab09","branch":"HEAD"},"scenery-phet":{"sha":"d50f2282","branch":"HEAD"},"sherpa":{"sha":"5ddfccd4","branch":"HEAD"},"sun":{"sha":"4b852127","branch":"HEAD"},"tandem":{"sha":"43ebdfb3","branch":"HEAD"}}