Wednesday, March 21, 2012

Monday, March 12, 2012

First Term Paper

Laws of Physics in the Simpsons Movie Universe



Introduction


The Simpsons Movie is a 2D animated film revolving around the Simpsons family. As in the TV series, the Simpsons Movie leads the audience through different arcs of the story. The beginning introduces the problem of the polluted lake in Springfield. A premonition from Abe Simpson at the church warns about a twisted tail, thousand eyes, trapped forever, and EPA (Environmental Protection Agency). After a while, Lisa Simpson convinces people of Springfield to prevent any farther contamination of the lake. In a rush to get free donuts, Homer, with his impulsive behavior, dumps “Pig Crap” silo into the lake causing a chain reaction which a squirrel becomes mutated with a lot of eyes. EPA then decides to take action in preventing the contamination from spreading by closing Springfield off with a giant hard glass dome. The Simpsons managed to escape the dome after being chased by Springfield angry mobs. Homer will have to decide what is important to him whether it is himself, his family, or the people of Springfield. The conflict of the Simpsons story is usually caused by reckless behaviors from the people of Springfield but especially from Homer. These conditions allow the animators to show how physics work in the Simpsons world with dramatic problems, possible solutions, and comical situations.

Facing the Problems



In the beginning of the movie, the Green Day band fails to convince the people of Springfield to prevent the lake from farther pollution. The lake burns the band's barge like acid and the barge begins to tip over and sink into the lake. Before the band falls, they were able to stay standing on the barge even though their center of gravity has past their base of support. This shows how low the air pressure is when the polluted lake melts the barge. The band member closest to the top, which has a bit lower air pressure, is able to keep his standing position on the barge for 62 frames and about 2-3 seconds before he feels that he loses his balance. The other two members keeps their balance until the member closest to the top falls then everything else, even the drum set that has wheels, follows the leader. This is most likely impossible in reality especially for the equipment to have wheels and not slide down into the lake first before a unbalanced standing person, but it demonstrates how much pressure the lake radiates.

Compare the Green Day band falling off the barge to Homer’s attempt in riding a motorcycle in a circle loop in a sphere. Half way through the movie, Homer and his family have escaped to the outside of the dome and they try to win a pick-up truck in a carnival. Homer chooses to participate in a motorcycle dome challenge. Homer rides the motorcycle about 2.5 feet per frame which is about 60 feet or 42 mph a second. Homer slows down as he reaches to the top, he falls off almost immediately because he allows centrifugal force enough time to become neutral. This demonstrates that the world outside the dome and away from the polluted lake have mixed air pressure of high and low. Otherwise Homer would have stayed on top longer. On Homer’s third and final attempt, he succeeds in going all the way around by continuing to move 60 feet a second without slowing down.

Finding the Solutions



Near the end of the movie, Homer attempts to save Springfield by taking the bomb and riding the motorcycle all around the inner dome to reach the center top of the dome that has a circle opening that is about 32 inches in diameter. This opening is the only air coming from the outside world. This explains how Homer is able to ride the motorcycle without falling for about 2 minutes. Homer rides the motorcycle about 6 feet per frame. Traveling 6 feet a frame, which means the motorcycle is going approximately 144 feet or 96 mph each second. In reality it would be impossible. The dome that covers Springfield is more than 20 times the size of the motorcycle dome that Homer succeeds in going around 60 feet a second, does not mean going 3 times faster will help in going around the interior dome that is 20 times larger. The possibility of this happening is already introduced in the beginning from the falling of the Green Day band. In addition to the lake’s contaminated pressure and the lack of air coming into the dome, the air pressure inside the dome is high while the outside air pressure is low. In this case, Homer can stay intact on the dome’s inner surface due to the low air pressure outside making a larger centrifugal force outwards.



A solution that helps the Simpsons to escape from the dome is through a sink hole, that has the vacuum cleaner force, which was introduced in the beginning quarter of the movie. At first the sink hole seems to just be a task that Homer had to fix on his to-do list and he covers it with a sandbox and Maggie, but it displays itself as an escape route near the climax of the story. After the dome covers Springfield, Marge is looking outside because she misses the natural air. To Marge's surprise, she sees Maggie outside of the dome. Marge goes inside the house to tell Homer and when they are outside, Maggie is back inside the dome on the sandbox. After Homer shows his humor of idiocy, being tricked by his reflection and thinking he is outside of the dome, Marge and Homer goes out of screen. Maggie is then pulled into the sandbox and then she pops outside of the dome. The only part that is confusing about this is how Maggie gets back inside the dome if the sink hole supposed to vacuum things out. In this case, since Maggie is small she can jump back inside the sink hole with enough centrifugal force to push herself back inside the dome.

Fun Physics

The animators of the Simpsons uses physics to create comedy in their universe. One of these is when Cargill, head of the of the EPA, arrives near the dome to search for the Simpsons who just escaped out of the dome. Cargill's subordinate believe they lost sight of the Simpsons and then Cargill tosses his binoculars towards his subordinate who ducks away. The binoculars is moving 1 foot a frame until it ricochets from the dome and moves back towards Cargill with 2 feet per frame. This probably happens because the binoculars recoils from the dome which reflects equal amount of force that the binoculars have from Cargill's toss. Since the dome have an ongoing force pushing outwards due to the low air pressure compare to the high air pressure inside the dome, this causes the binoculars to move 2 times faster. This is a very short scene but it demonstrates the ongoing forces of air pressure that drives the story forward.

An example of an absurd physics is when Bart tosses the bomb, that meant to destroy Springfield, out of the opening hole at the center top of the dome when Homer escorts Bart in the motorcycle around the dome. The motorcycle is moving 144 feet a second and the bomb still flings straight up. The bomb happens to only move slightly enough for it to bounce around the rim of the hole. In order for the bomb to have move slightly instead of moving along the centrifugal force in direction of the motorcycle speed, Bart must have tossed the bomb backwards with enough force to nearly neutralize the centrifugal force. When the bomb bounces around the rim in rapid speed like a fumbling football, the air pressure is pushing it away from the hole. In this case, the vacuum cleaner force saves Springfield from being obliterated by the bomb. Otherwise the bomb should have fallen back inside the dome.

Conclusion

The law of physics in the Simpsons expresses the conflicts in the story which gives some logical reasons for the transition to flow through the chains of events that occur. Solutions to the conflicts are demonstrated through the laws of physics to assist the Simpsons to surpass their obstacles in the story, also saving Springfield at the end. The animators make use of physics to create comedy and action throughout the movie. For a TV series that attempts to entertain people for a film feature length have to play around more with physics, mainly to make things in its world more believable. For any story, whether it is animated or not, if the world that the story revolves in does not create the fundamental rules for its world, the audience would feel out of place and it would be difficult for them to understand the story and its world. After working in the physics and rules of the world is established, the animators can then make some absurdity in physics to make the situation more comical.

Monday, March 5, 2012

Outline of first term paper

Physics in The Simpsons Movie

I'm just going to list down what I can explain about, it might be a lot but I can narrow it down.

Introduction
The Simpsons has mostly been just a TV series until the appearance of the movie version. In order for The Simpsons to be entertaining for a film featured length, it has to focus in developing the physics in the world.

Body
Arcs:
  • Bart shooting bebe rifle at Homer carrying loads of bricks - bebe bullet arc and falling
  • Bart skateboarding and flings off from his skateboard - as a dare from playing the dare game with Homer.
  • Mobs, elementary kids using archery aim and miss the Simpsons when Plopper, the pig, shoved the plank - flying arc, most aim was very precise that the apex and some aim were too high (not enough range) so they miss (some simply just miss).
  • Homer rides on the motorcycle to win the prize by riding it in a loop at least once. fail 1 for falling off the bike Fails 2 times for not going fast enough and succeed when he speeds up
  • Homer sledding with huskies jumping over a cliff. - arc
  • Homer tries to ramp the truck with demolisher rack-em ball but did not swing enough force
  • Homer and Bart riding the motorcycle around the dome - perhaps due to limited air pressure from the sewer cover size hole in the center top of the dome.
  • Homer and Bart jumping the Springfield gorge. - arc
Ricochets:
  • Springfield homeland security tries to shoot the dome put the bullet ricochet back at them.
  • Ralph blowing bubbles to attack the dome but they reflect back.
  • EPA leader, Cargill, tossed binocular and it ricochet back that him. - binocular flies slow but reflect by the dome with greater speed back
Falling object:
  • Green Day band falling off of their barge into lake springfield - center of gravity and base
  • Homer releasing the loaded bricks - falling brick
  • Maggie tossed a rubber ball up to the air and it falls back to her - odd rule of falling object
  • Maggie being sucked and spitted out of the sinkhole - ball flings out of Maggie's hand
  • Bart rescue Homer and himself from falling off Springfield Gorge with his slingshot to fling back up the gorge.

Inertia:

  • Homer pulled by a truck to get back home
  • Stopping truck of the captured Simpsons.

Possible others:

  • Bart fling off from TV antenna and fumbling on the roof
  • Homer collapse through the roof - Homer's weight vs wood density
  • The bomb fumbling around the hole of the dome
Conclusion
An animation series that attempts to entertain people for a film feature length should play around more with physics, mainly to make things in its world more believable and to make some absurdity for comedy.