In this experiment a bottle with a few ml of 95% ethanol is set on fire. Here the flame propagation is shown by the use of digital stroboscopic imaging where several hounded images are added together to show how the flame moves though out the bottle. Here four images are shown added together -each taken 1/8 th of a second apart. This is a classic demonstration often done in chemistry classes.
The patterns in smoke are studied by illuminating the smoke with a scanning laser. The laser shows the motion in a 2D plain that is easier to study than the 3D motion. The coils represent cross section of fluid vortexes created by the convection currents from the hot smoke rising in the cool air. The source of the smoke is a stick of burning incense.
An X-Ray of a tulip flower.
The tadpole of the bullfrog (Rana catesbeiana). These tadpoles take two seasons to mature and are common throughout North America. A special flow visualization fluid was added to the water to show the motion of the animal in polarized light.
Cannabis Tricomb in UV light
A .22 caliber bullet is fired from a rifle. Here the bullet is seen in a polarizing interferometer. The different colors of light represent different air pressures. The clear bow wave in front of the bullets shows that the bullet is moving faster than the speed of sound. The exact velocity of this supersonic bullet can be calculated from measurements of the bow wake angle. This image freezes the motion by using a high speed flash with a duration of 1/2,000,000th of a second.
This image records the flights of insects above a light for several minutes on a hot summer night. To make this image the camera shutter was opened as all the insects flew around the light.

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The neurons in a crayfish tail are some of the largest in the animal kingdom. Shown here in a Differential Interference Contrast (DIC) microscopy image at 10x.

Image stacked and stitched.

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