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Re: Nerd-arama
Posted: Fri Jan 29, 2010 7:02 pm
by Sam
thats crazy, negative mass, I have never heard of the concept before and the effects that would have are even crazier. For instance if we take F=ma and make m = -m then if you applied a force onto the exotic particle it would actually move back on the direction you pushed it :?
and yeah some people have messed around with this idea enough to find that its effects in general relativity are even odder, which could lead to (as stated before me) the creation of wormholes!
But I keep trying to answer this question in my head:
What would happen if you exposed a normal atom of positive mass to an exotic particle?
would they just sit there and not do anything if thier gravitation are both equal and opposite?
logic says yes but I dunno, something isn't fitting perfectly in my head...hmmmm....
oh and when I said:
Tretarn wrote:2) particles that are oddly composed
I was actually on about exotic atoms, which arn't as fun
http://en.wikipedia.org/wiki/Exotic_atoms
Re: Nerd-arama
Posted: Fri Jan 29, 2010 7:18 pm
by Matthew
If you mixed normal matter with exotic matter, the universe will probably blow up or something. XD
I know that anti-matter and normal matter, annihilate each other when collided. Maybe exotic matter, since it's negative, cancels out normal matter, leaving no energy unlike anti-matter.
Re: Nerd-arama
Posted: Fri Jan 29, 2010 10:54 pm
by Ironman21
thats a theory that won't be tessed for many a generation
Re: Nerd-arama
Posted: Sun Jan 31, 2010 9:51 pm
by Scott
It seems you have very rapidly surpassed me. I'm not great with physics but it's really interesting reading your posts. Does anyone know the specific details of aleph-null or chaos theory? I've been perplexed with these things for quite some time now... Also this is really how I talk, I'm not just using a thesaurus. Sure it's not very informal but it gets my point across.
Re: Nerd-arama
Posted: Mon Feb 01, 2010 10:13 am
by Ironman21
I'm not a genius either, but I do know that exotic particles are something that puzzle scientists like no other particles. My physics teacher was asked a question about them one day, and she had noooo idea what the heck the guy was talking about.
Re: Nerd-arama
Posted: Mon Feb 01, 2010 12:47 pm
by Scott
This might not be true about your teacher but it seems that many high school teachers simply read from the text book. I've had lots of substitute teachers who have no idea what DDT is...
Re: Nerd-arama
Posted: Mon Feb 01, 2010 1:29 pm
by Ironman21
You know, some teachers know what they teach and others read what others have wrote
Re: Nerd-arama
Posted: Mon Feb 01, 2010 1:30 pm
by Scott
:? deep :?
Re: Nerd-arama
Posted: Mon Feb 01, 2010 1:33 pm
by Ironman21
I just have that kind of insight 8-)
Re: Nerd-arama
Posted: Mon Feb 01, 2010 1:39 pm
by Scott
So does anyone know anything about aleph-null or chaos theory?
Re: Nerd-arama
Posted: Mon Feb 01, 2010 1:45 pm
by Matthew
Scott wrote:It seems you have very rapidly surpassed me. I'm not great with physics but it's really interesting reading your posts. Does anyone know the specific details of aleph-null or chaos theory? I've been perplexed with these things for quite some time now... Also this is really how I talk, I'm not just using a thesaurus. Sure it's not very informal but it gets my point across.
"Does anyone know the specific details of aleph-null or chaos theory? "
I tried looking up aleph zero on wikipedia. From that all it seemed to be is a way to describe a sequence which doesn't stop, that has an infinite limit.
I heard of this chaos theory before. It means that a slight change in starting conditions is enlarged in some type of system and can cause random changes. Think about random number generators. They are designed so that a slight change in the seed (clock) will make a major difference to the number, giving better random results.
I'm going to test this by creating a python program. I will use the random module and gather random numbers from different seeds. I will increment the seed by a fixed amount. I will find the standard deviation of the difference between each random number which will be between 0 and 1. If the deviation is close to 0, then the change in the seed by a fixed amount will give a consistent change in the random number, else it will act in accordance with this chaos theory.
Re: Nerd-arama
Posted: Mon Feb 01, 2010 1:52 pm
by Scott
To be honest the first time I saw aleph-null was on Futurama in the episode Raging Bender. The theatre's name was aleph-null-plex. Anyway thanks for the info.
Re: Nerd-arama
Posted: Mon Feb 01, 2010 2:18 pm
by Matthew
It's all about Futurama. Here is the results of my test:
Mean difference: 0.337649123369
Standard Deviation: 0.200850715263
I reckon that shows the random number generator has very good chaos.
Code: Select all
import random
last = False
differences = []
running_total = 0
for x in xrange(0,1000):
random.seed(x)
temp = random.random()
if last:
difference = last - temp
if difference < 0:
difference = -difference
running_total += difference
differences.append(difference)
print difference
last = temp
mean = running_total/len(differences)
running_total = 0
for difference in differences:
temp = mean - difference
if temp < 0:
temp = -temp
running_total += temp
standard_deviation = running_total/len(differences)
print "Mean difference: ",
print mean
print "Standard Deviation: ",
print standard_deviation
Re: Nerd-arama
Posted: Mon Feb 01, 2010 2:24 pm
by Scott
Is that Python? And yes it is all about Futurama
Re: Nerd-arama
Posted: Mon Feb 01, 2010 2:30 pm
by Matthew
Yes it is python. Didn't I say?
I predicted the mean to be 5 but it isn't for some reason. I would expect the standard deviation to be 2.5 then. I'm no expert on random numbers. I'm sure there is an explanation for the numbersI got. Either way they show the differences vary.
Edit: The average range of possible differences is 7.5 so instead I should have predicted the mean to be 3.75 and the standard deviation to be 1.875 which is closer to the actual.