https://peertube.dngr.us/videos/watch/9a6a50c8-a736-4896-96f7-168e1fe51d3b This video demonstrates how to extract the chemical fluorescein from highlighter markers using no other chemical besides common rubbing alcohol. As is demonstrated in the video, fluorescein is spectacular to watch dissolve into water, especially under black light. Below is a list of other excellent videos that feature fluorescein. Dr. Nozman's demonstrations (subtitled in English): http://youtu.be/iQlE1dKJmy4 http://youtu.be/BRBc3C6R-DA HouseHoldHacker: http://youtu.be/s8dctujbP2s NurdRage (An excellent tutorial to make Fluorescein in the lab): http://www.youtube.com/watch?v=ihssISvNL3o In addition to the above videos here are several links describing the process by which Fluorescein is used to detect trace amounts of blood: http://www.crime-scene-investigator.net/fluoresceinmethod.html http://www.latent-prints.com/fluorescein2.htm Be sure to share this video with your friends and leave me a comment or two! I'm always open to new video suggestions as well. -Ben [NightHawkInLight] #NightHawkInLight -~--~--~- Check out my latest video: "How To View Invisible Air Currents With Lasers" https://www.youtube.com/watch?v=K94Cc21KEIA -~--~--~- Sat, 13 Jun 2026 13:24:35 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://peertube.dngr.us https://peertube.dngr.us/lazy-static/avatars/41a6fee9-7f57-42d0-a5fc-5db4f1af2e31.png https://peertube.dngr.us/videos/watch/9a6a50c8-a736-4896-96f7-168e1fe51d3b All rights reserved, unless otherwise specified in the terms specified at https://peertube.dngr.us/about and potential licenses granted by each content's rightholder.