AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |
Back to Blog
Lifesavers spark in the dark3/3/2023 ![]() You can make these experiments a little fancier, if you like. You can stick it back down and repeat the experiment or waste a lot of tape, as you wish. Just grab that pull-tab and pull it some tape off the roll. We have found that this works on all opaque candy made with sugar: transparent candy doesn't work, nor does saccharin- or aspartame-based candy. Once the candy gets soggy, it will not produce any light, so work quickly. Your friend will see blue light coming from your mouth like that shown above in Figure 1 (or you can see it yourself using the mirror). Place the candy between your teeth, keeping your mouth open, and bite down. (Some people find the glow greenish - our ability to detect color when our eyes are dark-adapted is not very good.) Now for the candy. If your eyes are sufficiently adjusted, you will see a bluish white glow from the sugar cubes when you strike them. Take two sugar cubes and strike one against the other as if you were trying to strike a match. During that period, your eyes will adapt to the darkness and you will begin to be able to see a little of your surroundings (unless you are in a real "darkroom"). Go into the closet and wait 5-10 minutes. It would be helpful to partially open the candy and make a pull-tab on the end of the tape roll. Take with you sugar cubes, wintergreen (and other) candies, adhesive tape (any kind will do) and a mirror or friend. If you don't, the question is answered in the next few sentences.įind yourself a room with no windows (a closet or bathroom will do). If you see a link, the question is answered if you follow the link. Note: this little essay has some questions in it. Kodak Ektachrome (EL) color film (ISO 400) was placed under a sheet of Plexiglas the candy was placed on top of the Plexiglas, covered with another piece of Plexiglas and smashed with a hammer. Photograph of the emission of WintOGreen Lifesavers, taken by Towson State University undergraduate students. Sweeting, Department of Chemistry, Towson University, Baltimore, MD 21252įigure 1. WINTERGREEN CANDY AND OTHER TRIBOLUMINESCENT MATERIALS Linda M.
0 Comments
Read More
Leave a Reply. |