Deep Impact (1998)




Concept 1:
The scientists clearly say that the gorilla in the cage is a female. Look closely, and you will notice "her" silver back. There is no such thing as a female silverback; it is a characteristic of only mature, male gorillas.

Concept 2: The invisible Kevin Bacon is able to see in the film, but this is impossible since his cornea and retina (like the rest of his body) would also be invisible. The cornea is responsible for refracting light rays to the back of the eyeball to the retina and optic nerve. If his cornea and retina were invisible, the light rays should have gone straight out the back of his head, thus rendering him blind.

Concept 3: Kevin Bacon's character is obviously bothered by the light when he first wakes up, which is attributed to his invisible eyelids. However, the function of the eyelids when we are awake is to keep the eye moist, not to block out light. Light penetration is controlled by the contraction of the iris, which changes the diameter of our pupils. Thus, the light should have bothered him no more than it would you or I when we first wake up in the morning.

Concept 4: When the gorilla is made visible again by the serum, notice that the serum flows backwards through the gorilla’s veins toward his hands. This is impossible since veins have valves that prevent the backflow of deoxygenated blood back into the tissues, thus the serum should have been forced to go toward the heart with the rest of the gorilla’s venous blood.

Concept 5: The serum eventually flows toward the heart and branches immediately out to the rest of the body. However, the mammalian circulatory system consists of both pulmonary and systemic circuits. After blood is brought to the heart, it is pumped directly to the lungs (pulmonary circuit) to be oxygenated. After leaving the lungs, the blood returns to the heart THEN it is pumped to the rest of the body (systemic circuit).

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Ann Haley MacKenzie
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