Sunday, September 27, 2015

Superman? Or Hoaxman?

Matt Hess

The Physics of Superheroes

The first chapter of this book was about Superman and the beginning of comics.  Superman was the first superhero to come from another planet and make it on Earth.  His original origin story was that the planet he came from was being destroyed so he was went on a spaceship by his Dad so that he may live.  Since he was from a different planet, he was a different being from humans.  The planet he came from, Krypton, has a stronger gravity which is what allowed him to have a few of his powers.  His muscles would be growing in accordance to the gravity on Krypton instead of Earth.  One of the first things Superman can do is leap over buildings and far distance.  The height he can jump is 660 feet.  His estimated mass would be 100 kilograms.  When calculating how much force his leg muscles have to exert to get up to 660 feet at the max height, they would need to push against the Earth at 25,000 kilograms meters/sec^2.  This is something that humans would never be able to do without enhancements.  This means that Krypton's gravity would be around 15 times as strong as Earth's gravity.  Superman has other powers which were introduced in later comics cannot be attributed to the difference in gravity so the comic writers had to come up with something new.  The reason that he has these powers in later comics is because of the yellow sun.  Using science this does not make much sense.

Sunday, September 20, 2015

How to Avoid Armageddon: A 3 Step Process

In the movie Armageddon we witness an asteroid in a collision course with Earth.  This is bad news for anyone on Earth as it is planet-wide extinction.  In the movie they try to drill into the asteroid and blow it apart with a nuke.  After figuring out the physics of blowing the asteroid, the conclusion is that it would have still hit the Earth.  After doing some digging I soon found out about a real life plan that NASA has to deter an asteroid.  NASA is planning to capture and asteroid of a significant mass and put it into a lunar orbit (an orbit around the moon).  When it is in the lunar orbit it can be manipulated to alter the path of the asteroid which is on a collision course with Earth.  This can work because everything has a gravitational field.  If we have a large enough chunk of rock orbiting the moon, we can manipulate it so it comes close to the doomsday asteroid which will alter its course and hopefully save the Earth.  In order for this to work, the rock we use will have to be a quite large one and might have unseen consequences on the Earth by sitting out there.  The tides will be affected if the object is a large enough one when it orbits between the moon and the Earth.  The object may also affect the moons orbit around the Earth.  If we can figure out what size this rock would need to be and also figure out how to avoid the tides from becoming ruined, then this can also be used as a checkpoint on the way to Mars as well as an asteroid deterrent.

The movie Armageddon has the plan to blow the asteroid into two pieces so that it would miss the Earth.  When doing the physics and giving each value the most favorable one, we were able to figure out that the asteroid would still have hit the Earth, but in two places instead of one.  This might have been more devastating for Earth and still would lead to an awful scenario.

Sunday, September 13, 2015

This guy's going to be erased

Eraser

When Arnold shot the gun, would he survive the shooting and how fast would the person who was shot go after being hit?  Here's the math:

At the speed that Arnold would be flying back, he would have either died instantly after shooting or his arm would have been torn off.  So Arnold would not be the one doing any saving in this film is real physics were applied.
The victim of this shooting would have flown back at a very fast speed so he would have instantly died and flown backwards.

Saturday, September 5, 2015

Mission Possible 3

Mission Impossible 3

Agent Ethan Hunt (Tom Cruise) swinging from one building to another in Shanghai -
Could he make the jump? To find out we would need to know:
Building 1 height: 226 meters (Where he jumps)
Building 2 height: 162 meters (Lab)
X distance: 47.5 meters
Initial velocity x: -25 mph (-11.2 m/s)
Final velocity x: 15 m/s
Initial Velocity y: 0 m/s
Final velocity y: 10 m/s
Acceleration X: 0 m/s^2
Acceleration Y: -9.8 m/s^2
Time~ 18 seconds
To get the initial x velocity, I used the average human speed and took that because he runs backwards off the building.  To find the time I counted and subtracted 2 seconds for the slow motion time.  The heights were given in the movie and the x distance was too.

Drone Attack Scene
Ethan jumps a hole in the bridge.  Could he make the jump?
Hole width: 4 meters
Time: 1 second
Initial velocity: 5 m/s
Final velocity: 5 m/s
To get the holes width I used the car next to it as a guide.  The initial velocity was guessed because he started to run.  He never got to full speed so I took half of the average human velocity for his initial velocity.

Vatican City wall
Ethan repels off of the Vatican City wall.  My question is would he be able to stop that quickly and not hit his face on the ground and would it have needed more time for him to reach the ground or less time.
Y distance: 16.55 meters
Y acceleration: -9.8 m/s^2
Y final velocity: -29.4 m/s
Time: 3 seconds