I built my first Utah gel box this week. I had the pieces cut by tap plastic, and I used acrylic glue to melt them together.
STuff:
- alligator clips
- 4 9v batteries connected together, both from radio shack.
- Agar for the gel came from SF Marketplace, an asian food store in Sacramento. Agar is used to thicken soup.
- buffer was a glass of water with a pinch of salt
Making the gel was easy. I used about a cup of water, and a teaspoon of agar. I microwaved it until the agar disappeared and the water was clear (~3 min).
I ran food coloring in my 4 lanes. From top to bottom: Yellow, Red, Blue Green. It’s interesting to see that:
- Yellow runs off the gel very quickly.
- Red also moves along.
- Blue is made of red and blue.
- Green is made of blue and yellow





what i love about asian foods is that they are always tasty and spice,.*
Comment by Maisie Marshall — July 11, 2010 @ 12:51 pm