Monday, November 20, 2017

Twin Paradox

Contact Messed Up What Interstellar Got Right

Time starts to act weird when you move fast.  When you reach a speed close to the speed of light, you will experience time slower than everyone else.  Basically you travel into the future.  It's a neat idea that some movies try to portray like Interstellar.  Contact tried to do it too and they even mentioned relativity in the film, however, they got it wrong.  When the lady did her space magic she was supposed to feel less time than everyone else.  Instead she felt more time.  What was less than a second to them was eighteen hours for her.  It should have been reversed.  If the movie wanted to be correct then it should have made her travel into the future when she came back.  She should've been the same age while everyone else turned to old people or corpses.  Interstellar got it right tho.


Thursday, November 16, 2017

SCENE

I WILL EXPLAIN THE PHYSICS OF THIS SCENE AND IT WILL BE GLORIOUS 


 

Sunday, October 29, 2017

Should I Feel Bad?

What it Takes to Slaughter

War sucks.  Nobody likes it.  The people who do like it don't realize that being shot at sucks.  The fighting is not over till it's over.  If you want to end a war you must trap the enemy and make surrender their only option.  You must make sure their is no argument that you are the winner.  When WWII was coming to a close, the Japanese were the last ones still fighting.  They were annoying to deal with and we were in their territory.  If we wanted to end the war, we would've had to pull off a mainland invasion.  It would've been a bloodbath.  Some nerds made a new kind of bomb however.  They dropped a couple on Japan and that was it.  The end of the war.  Japan surrendered and now they just make TVs and decent cars.  The problem was however, these bombs were used primarily on civilians at the time.  Also, these bombs were nuclear and poisoned any survivors with radiation.  It wasn't nice.  If the war had continued, many more people would have died.  It sucks that civilians got caught up in something so terrible, however, they didn't care about civilians getting caught up in Pearl Harbor either.  Revenge is a lazy excuse, but it ended the war so it was worth it.  As far as Gojira goes, if they didn't kill Gojira then it would've continued killing.  The weapon that was used to kill Gojira was super dangerous.  However, even if the scientist did keep it hidden, someone else would've made something just as crazy later.  That's assuming that nobody hadn't already made something even more dangerous.  In conclusion, it was worth it.

Monday, October 23, 2017

NASA

Reliable Evidence of Global Warming Down Below

https://climate.nasa.gov/evidence/

Reasons why this is reliable:

  • IT IS LITERALLY NASA

  • THEY SENT PEOPLE TO THE MOON

  • THEY ARE KNOWN TO BE PRETTY SMART

  • THEY SENT PEOPLE TO THE MOON

  • KNOWING THIS STUFF IS THEIR JOB

  • THEY SENT PEOPLE TO THE MOON

  • WHEN NASA SAYS SOMETHING, ITS A BIG DEAL

  • ITS A DOT GOV SITE... NASA.GOV THAT IS

  • DID I MENTION THE MOON THING, IT WAS A BIG DEAL

  • THEIR JOB IS TO KNOW WHAT THEY'RE TALKING ABOUT 

  • WALKED ON THE MOON JUST TO PROVE CAPITALISM


Sunday, October 15, 2017

Spiderman is Still Cool


"The Physics of Superheroes"

     Spiderman can do whatever a spider can.  It's pretty self explanatory.  This includes swinging from a web.  The author asks whether or not Spiderman could actually swing from a web like a spider can.  As soon as I read this I already knew the answer.  YES HE CAN!

     The strongest thread known to humans is in fact spider silk.  If you had an entire rope made from the stuff then there is no way that it would break.  Spiderman has a higher chance of losing his grip compared to a spider silk cord snapping.  That stuff is MUMBO STRONG.

     Since Spiderman is swinging in a semi circle, he is experiencing acceleration.  He is always changing direction which means he is always changing velocity.  Bang boom that's the basics of centripetal force.
     
     Now that the explaining is done, lets get to the meaty bits. 

The Math

T = mg + (mv^2)/r
g = gravity
r = radius of his swing or the length of his webs
v = velocity of Spiderman
m = mass of Spiderman
    
     If you assume that Spiderman is 76kg and the webbing is 200ft (61m), we would arrive at around 300 pounds of tension.  It's still not enough.  Spider silk is 5 times stronger than a steel cable.  If Spiderman is using real spider silk then he has nothing to worry about.  I honestly feel bad for the people he ties up in that stuff, they probably never get out.

     The author also mentions some stuff about the scientific possibilities of spider silk.  No lie, 60 minutes already did a segment on spider silk and it was really cool.  I highly recommend it.

      Final conclusion is that Spiderman is still cool and now he is somewhat realistic.  Let's forget about Spiderman 3 though...  Seriously, it was bad.

 

Tuesday, September 26, 2017

Armageddon

Space Jam Grand Slam


       Lets be real here dudes.  If a meteor just showed up without crazy amounts of warning, we'd be super dead.  I don't mean just dead.  I mean ultra dead.  Out bones would be the next thing to be picked up by whatever takes over after the monkeys and then smashed into other bones.  The key to dealing with a meteor has nothing to do with power.  We need time.  

The Problems

      The rock will kill us when it hits.  That is assured.  Most people would just go with "Nuke the rock till it's gone."  However if we nuke the rock, it'll only break into smaller rocks.  Mass is never destroyed or made, only changed.  If the rock is broken up then we now have a buckshot effect instead of a slug round.  We would get showered in smaller rocks.  If the rocks are small enough then they should burn up in the atmosphere.  However we can't say with certainty that all of the rocks will be small enough for this to happen.  After thinking on it, I've come to the conclusion that blowing it up isn't all that good of an idea.

The Solution

      We are left with two good options.  Run away or we change the coarse.  We can change the coarse of the meteor if we have enough time.  With time on our side then I believe that if we pelt the rock with matter over time, it should change coarse.  I suggest either we smash one big piece of junk into it once, or we smash small pieces over time.  We can probably just take a bunch of trash from dumps and landfills and launch it into the rock at a perpendicular angle over a long period of time.  Hopefully the repeat force should be enough to nudge it over so it misses.  However this plan requires time over anything else.  If we run out of time the we die.  Well running out of time is a metaphor for dying so I guess that a given.  At the rate we're going I think World War III will get me before any space rock does.

Sunday, September 3, 2017

Mission Impossible III

Mission Impossible III

I didn't like it

           I didn't like it.  The movie had a couple of neat scenes, but it was all around a little dumb.  The acting was somewhat mediocre over all and Tom Cruise is weird to look at and listen to.  The stunts were cool but that was only four or five times throughout the entire movie.  The other hour and a half was filled with an all around "meh" experience.



Part 1: Shanghai Swing King

     Tom Cruise has to get into a building and he decided to pull a Tarzan and swing over.  I want to know if would actually survive his landing instead of making a stain.  This one is probably the easiest to figure out since it gives you the numbers. The initial building is 226 meters tall and the final building is 162 meters tall.  The distance between the two towers is 47.55 meters.  Tom didn't just fall off of the first building when he began his journey, he jumped.  That means that he had an initial X velocity.  The maximum human running speed is about 12 m/s.  Lets keep in mind that Tom Cruise, as physically fit as he is, won't be able to beat my boy Usain.  To keep the math easy lets just say he was running at 10 m/s. He didn't really leap up, he just leaped forward.  We'll just assume that his Initial Y was zero and move on.  The total time of the stunt was around 23 seconds, however, there was a slow motion shot for about 5 seconds.  Lets just say it took 20 seconds for the sake of keeping it simple.  The acceleration due to gravity is -9.8 m/s^2.  Air resistance is annoying so forget it.  Lets list them out.

Building Initial or Bi = 226 m
Building final or Bf = 162 m
Distance between buildings or D = 47.55 m
Initial X or Xi = 10 m/s
Initial Y or Yi = 0 m/s
Time or t = 20 s
Acceleration due to gravity or Ga = -9.8 m/s^2 

   I'm not sure if he could survive this but whatever it's a movie.

Part 2: Bridge Boy Jump

     Tom Cruise is trying to get to a helicopter to stop the bad guy after fighting a drone.  The drone blew a hole in the bridge.  Tom has to jump the hole.  How much force was required for Tom Cruise to make that jump.  The hole is about one and a half cars long.  The average car length is 4.5 meters in length.  That means that the distance is somewhere around 6.75 meters.  Tom Cruse has a mass of 67 Kilograms.  The acceleration due to gravity is -9.8 m/s^2.  We'll say that his angle of launch was a solid 45 degree angle.  Lets list them out.

Mass of Tom or m = 67 kg
Distance or d = 6.75 m
Angle of launch or a = 45(in degrees)
Acceleration due to gravity or Ga = -9.8 m/s^2

Its a maybe... or not, I'm bad at this.

Part 3: Tower Drop Top

     Tom Cruise made it into the tower in Shanghai, however, now he has to get out.  He does this through a window that's "around" the top floor.  Then he continues to "descend" to the ground.  It wasn't a straight drop in the movie, however, what if it was.  I'm not going to lie, I wished the movie ended there with him hitting the curb so I could go home.  I want to know the speed of impact for Tom if his shoot didn't open.  He would've fallen about 162 meters with an acceleration of -9.8 m/s^2.  What would his final velocity be?  It's only two numbers so lets skip the list.

     I'd give the movie a 3/10, if it wasn't for the fact that attendance counted, I would've gone home.  I'm hype for Interstellar tho.