Nicotine Movies

Nicotine Video No. 1 - Examine crystallization growth fronts under polarized illumination at a magnification of 100x with a playing time of 4.7 seconds. Choose a playback format that matches your connection speed: 28.8k (modem), 56.6k (modem), or T1/Cable/DSL, or download this video clip in MPEG format (1.96 MB).

Nicotine Video No. 2 - Nicotine crystallization is captured by time-lapse cinemicrography under polarized illumination at a magnification of 200x with a playing time of 11.4 seconds. Choose a playback format that matches your connection speed: 28.8k (modem), 56.6k (modem), or T1/Cable/DSL, or download this video clip in MPEG format (4.83 MB).

An oily liquid substance found in tobacco plants, nicotine is the principal alkaloid of tobacco, constituting about 5% of the plant by weight. In its pure form nicotine is colorless, but when exposed to light or air, it acquires a brown color and gives off a strong tobacco odor. One of the few liquid alkaloids, it is found throughout the tobacco plant, but occurs in highest concentrations in the leaves.