CANS1089.jpg

We initially started taking pictures using unpainted cans to get the timing of the can implosion. However, we had a difficult time differentiating between the successive frames since there was no background color to distinguish between the different colored flash units. The picture above represents the pictures we got when we did not use a white can.

CANS1090.jpg

Our first picture using a white can was not desirable because three of the flashes went off after the can already had crushed, so we decided to decrease the interval time between the flashes; we were hoping to catch a high speed image of the can when it initially started crushing to when it ceased crushing. We wanted to get successive frames of the image and we also wanted a successive contrast in colors, which did not happen in this picture above. Our immediate delay (1^st flash) was .0006ms and our interval time (for 3 flashes) was 30 ms. All of this data can be referenced by matching the filename of the photograph with the data table above.

CANS1095.jpg

We had four flashes: red, green, blue, and orange; in this picture our interval time was significantly decreased to 5.999ms. We examined our second picture on Dr. Winter’s computer, and we had a hard time seeing the second flash: green color. Therefore, we decided to take pictures of the individual flashes on a white can to determine what color each flash was giving off.

Green on Nikon

CANS1096.jpg

We discovered that the green color flash was actually giving off a bluish image on the can. We perhaps thought that changing the resolution would affect our image colors. We took another image keeping everything the same except changing the resolution from normal to fine. The picture color did not change. We learned that changing the resolution on the Nikon did not change the color of the flash in the picture. Dr. Winters suggested that we take out our green flash and just go with three outputs.

We also discovered that the way we held the can affected the way the can crushed. Sometimes we did not hold the can fully submerged in the water. Consequently, the crush of the can was quite different. Side by side comparison of these two pictures (cans 101.jpg and cans2124.jpg) indicates two of the many different ways that the can imploded.

cans2124.jpg

In this picture, we made sure to hold the can so that it was fully submerged in the water. The outcome was successful and we got pictures of the can using three outputs (red, blue, and orange). The picture had all three distinct colors in successive frames of the can crushing. This is one of our better pictures.

Green on Olympus

cans3006.jpg

When started to use Rob’s Olympus Camera starting with our sixth imploding white can picture. We took pictures of individual flashes to see how Rob’s camera would display the filter flash colors. Rob’s camera (Olympus) displayed the green filter as green color in the above photo (cans3006.jpg).

cans4003.jpg

We switched the outputs from three to four ( red, blue, orange, and green). We decreased the interval time to 3.999ms and got a decent picture. We took a number of pictures using four flashes (red, blue, orange, and green) with time intervals varying from 3.5ms-4.5ms. The pictures all look similar to cans4003.jpg. The reason for this is that for the last group of photos that we took, we had switched to Rob’s camera. Rob’s camera did not distinguish between the flash colors in a single frame very well as seen in the above photo; consequently, our photos were not as desirable as cans2124.jpg, which was taken with the Nikon.