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A little about the concepts within these videosFake Blood: In order to simulate blood, we created a mixture composed of water, flour, corn syrup, and food coloring. To change the consistency of the liquids, flour was added to the solution. This is achievable because the characteristics of the solid flour change the characteristics of the liquids. Since the solids did not completely dissolve in the liquids, the particles were suspended, creating a colloidal solution. One feature to a colloidal solution is the fact that light is unable to pass through, which is also a characteristic of real blood. For the most part, red food coloring was used to produce the correct shade of the blood, but we also added alight amounts of blue to make a darker color.
Flammable Bubbles: To design the effect of exaggerated explosives, we used flammable bubbles. Although the mound of bubbles appears ordinary, there is a hidden element that creates a dynamic effect. The transparent gas inside the bubbles is able to light on fire. When a heat source is added to natural gas, it combusts and produces a large, but short-lived flame. By injecting natural gas into a mixture composed of water and dish soap, bubbles filled with natural gas are produced. This creation is able to be placed on the door handle and the lighter then provided the needed energy for the bubbles’ internal gas to ignite. Egg Explosion: To amplify the actions of shooting the guard, we manufactured the noise of an egg exploding to correspond with the firing of a fake gun. We were able to detonate an egg by using hydrogen and the energy of a heat source. To fill an egg with hydrogen, a chemical reaction between zinc and hydrochloric acid produces the gas as a by-product. Once the egg is brimming with hydrogen gas, the heat source is added and allows the hydrogen inside the egg to react with the oxygen in the air. This creates water and pressure, which is the factor that explodes the eggshell. Dry Ice: Dry ice is the common name for carbon dioxide in a solid form. It possesses the ability to sublimate, which is the changing of phases from a solid directly into a gas. Pressure contributes greatly to the science behind this concept. For carbon dioxide to be in a liquid state, the pressure needs to be greatly increased. Under the typical conditions of the earth’s atmosphere, there is not enough pressure to force carbon dioxide into a liquid state so the dry ice transforms directly into a gas. One way to prove this concept is by observing dry ice when it is secured in an enclosed container. Initially the normal pressure allows the dry ice to transfer into a gas form. As this process occurs, pressure builds up because gas molecules move faster than solid particles. Therefore, the increased pressure allows the remaining dry ice to turn into a liquid state, no longer sublimating directly into a gas. |