Order early for pre-holiday delivery. Flinn will be closed December 24th, 2025,
through January 4th, 2026, reopening Monday, January 5th, 2026.
Orders received after 10:30 AM Central Time on Tuesday, December 23rd, 2025,
will ship after we return.
DC10652
Price: FREE
Demonstrate a graded refraction column using sugar and a clear container. Refraction gradients are important to the “Information Superhighway.” Graded fiber-optic wires help to prevent light pulses, carrying enormous amounts of information, from fading and diminishing as they travel hundreds of miles.
1-800-452-1261
