https://tube.loping.net/videos/watch/7a95fe43-eea3-4520-9f42-5e9f88bd722f I thought it would be cool to have a colored soap bubble that responded to changes in pH. I concentrated some phenol red (pH indicator), and mixed it with commercial bubble solution. Unfortunately, it was not dense enough to actually show its color. While investigating this, I noticed that normal soap bubbles lose their color as they become thinner (due to evaporation) and eventually burst. I tried to get footage of this color loss, but the bubble will not stay in the same place! I started to develop a method to partially fill the bubble with helium to make it neutrally buoyant. Sun, 12 Jul 2026 14:08:29 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://tube.loping.net https://tube.loping.net/lazy-static/avatars/8a56e488-2120-4649-a417-badf5893657b.png https://tube.loping.net/videos/watch/7a95fe43-eea3-4520-9f42-5e9f88bd722f All rights reserved, unless otherwise specified in the terms specified at https://tube.loping.net/about and potential licenses granted by each content's rightholder.