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Observations: The shooting of the jello produced very dramatic shots. We did not have much trouble setting up or figuring out correct delay times because everything was the same except the substance that we were shooting. During the course of the jello trials, we kept on decreasing the delay time because we wanted to capture the point of entry of the bullet. Clean up was not as messy as the egg project. We also obsereved that our Jello Pictures support Hypothesis.
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These first two pictures disprove hypothesis (1) that the bullet goes through the jello without an explosion type of effect for the first batch of jello. It is clear that the jello explodes when impacted with a bullet. However it is not clear from these first two pictures whether the jello explodes upon the bullet's entry, hypothesis (2), or the bullet's exit, hypothesis (3). (Hypothesis (1) was not correct for jello of this composition, however this does not mean the hypothesis if false for all jello. It very well could be that this hypothesis (1) is correct for jello that is more dense,colder or more congealed.) |
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Upon first glance the picture above would seem to support hypothesis (2) that the bullet explodes the jello when it enters the jello, because there is an obvious crown like explosion at the top. However if ones pays careful attention to detail at the bottom of the jello then it is clear that the bullet (the white spot right below the bottom of the jello) has already passed through the bottom of the jello. This facts makes us unable to conclude that hypothesis 2 is correct. |
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The above picture does not show an explosion at the top of the jello. Instead the explosion is exclusively at the bottom of the jello. This picture tends to support hypothesis (3) that the jello explodes upon the bullet's exit because it suggest that the explosion begins at the bottom and continues exploding until it reaches the top. However, in this picture only the back side of the jello is hit by the bullet so the viewer can not analyze the picture as easily as if the front side had been hit. The top and middle of the jello could be exploded on the backside of the jello but the viewer couldn't observe this because the unexploded front side of the jello is blocking the view. In addition we did not obtain enough pictures of the bullet exiting the jello to conclude that hypothesis (3) is correct. |
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These last three pictures were taken after we ran out of our first batch of jello. Rohit went down to the cafeteria to get some more jello. This new batch of jello was of a different composition. The jello was colder, harder, denser and more congealed. We used this new jello to shoot these pictures. With this new jello the explosion was not as violent. In fact in the last two picture it appears that the bullet sheared off portions of jello instead of exploding the whole jello mass. However, the jello isn't sheared in one place and the jello appears to undergo a tiny explosion so hypothesis (1) can't be proven for jello of this composition by just these pictures. Hypothesis (2) and (3) can not be proven either since the bullet has passed through the whole jello mass and the whole jello mass has been affected not just the top or bottom.
