Alternative physics (Yikes !)

[Fortuna]

Check out this guy's Alternative physics. .

 

I especially liked The Earth Is Motionless Center of The Universe

[Callipygous]

is he joking? i havent read a single one yet that isnt absolutely rediculus. i cant tell if hes really full of himself and actually that dumb or if its supposed to be a joke.

[Fortuna]

Calli,

 

I hope that it is a joke, but reading over it, I think he is serious.

 

Ok, this one is just plain silly !

 

Centrifugal Force Can't Create "Gravity" In Rotating-Cylinder Spaceship

 

In several science programs and movies about the future space travel, there is presented an idea that, the gravity on the spaceship could be created by rotation of the drum-like spaceship. HA! For the centrifugal force to create "gravity", the body has to weigh something. In the gravityless space bodies have no weight. Therefore the rotation of the spaceship would be irrelevant to the weightless objects. You can see clearly how the idea is wrong on mathematical level. The equation for centrifugal force is F=mv2/r.

 

If m=0 then F=0 * v2/r,

 

 

F= 0 / r,

 

F= 0. So, unless there is gravity to start with, there is no way of "creating" it by rotation and "centrifugal force". If the space station rotated, it would rotate without you.

 

 

If m=0 then F=0 * v2/r,

 

m= 0 ??? FALSE ! (This guy blows me away.)

 

Well, apparently somebody doesn't understand the difference between weight and mass ! Weight and mass are proportional by the gravitational accleration of whatever planet you are on, provided that m(object) << M(planet), usually a safe assumption for the average human and the average planet (the ones we know of anyway).

 

 

OK, I agree that it might be impractical to simulate gravity with centripetal force, but let's see. Let's try a simple calculation.

 

Lets assume a ship like the one on 2001, with a radius of 100 meters from the center of rotation to outer rim, where we want to have a simulated gravity. So, how fast would it have to rotate to simulate earth gravity (9.8 m/s^2) for a 150 lb (68 Kg) person.

 

 

F = ma = mv^2 / r (definition of force set equal to centripetal force)

 

So we have ;

 

a = v^2/r (the m's cancel out - nice, but we knew that) => v = (ar)^1/2

 

puting in our values ;

 

v = (9.8 m/s^2 * 100m)^1/2 -> (980(m2/s2)) ^1/2 = 31 m/s

 

So, our ship would need to rotate such that a point on the outer rim has a velocity of 31 m/s.

 

In radians/sec, that would be 31 m/s * 2pi rad / 2pi*100 m = .31 rad/s

 

As long as a person stood firmly on the floor, they should experience a force very close to the gravity on earth provided the thing spins at .31 rad/sec.

 

PS - Double check my math.

 

 

The one about the earth satellite is even dumber.

[Callipygous]

i dont bother with any of that math stuff, i just like to use pure logic.

 

anyone who has ever ridden on one of those spinny things in the playground knows that this guy is full of... stuff.

 

anyone who has taken physics understands that the reason is because the thing pushes you one way, but then the wall is there, so your constantly trying to move to the wall and its constantly turning your momentum in another direction, where there is yet again, a wall.

 

if you think through the situation in your head you realize that as long as the person had contact with something on the ship to get him moving in a circle he would be pulled to the outside.

[Newtonian]

I especially liked The Earth Is Motionless Center of The Universe

Well i tried but stopped after the first few lines.

BTW are you saying you believe the universe revolves around the earth.?

[Newtonian]

i dont bother with any of that math stuff' date=' i just like to use pure logic.

 

anyone who has ever ridden on one of those spinny things in the playground knows that this guy is full of... stuff.

 

anyone who has taken physics understands that the reason is because the thing pushes you one way, but then the wall is there, so your constantly trying to move to the wall and its constantly turning your momentum in another direction, where there is yet again, a wall.

 

if you think through the situation in your head you realize that as long as the person had contact with something on the ship to get him moving in a circle he would be pulled to the outside.[/quote']

I think you should think the situation over in your head....or read the posts in the thread.Its already been explained quite well!

[Callipygous]

I think you should think the situation over in your head....or read the posts in the thread.Its already been explained quite well!

 

 

i did...

 

and i think my way of proving hes an idiot works just fine, thank you.

[Fortuna]

Originally Posted by fortuna

I especially liked The Earth Is Motionless Center of The Universe

 

Well i tried but stopped after the first few lines.

BTW are you saying you believe the universe revolves around the earth.?

 

 

Newtonian,

 

What ! No, I was being sarcastic. I thought the "Yikes" in the title, the eek and confused emoticons, and my little calc about the rotating spaceship, the "some body doesn't understand the diff between mass and weight" expressed my feeling well enough, but I guess I'd better be explicit. HELL NO ! I DON'T really like it at all. I think this guy has done waaayyy too many hallucinogenic drugs, and those drugs are making him think the bible is a science text.

 

Um, do you think the universe revolves around the earth ?

 

Calli,

 

Agreed, your analogy was sufficient. It really doesn't take any formal math or physics to recognize a crackpot of this magnitude.

[Callipygous]

i really think he must be joking, or at least just seeing how many stupid people he can fool. he seems to have a fairly wide understanding of physics, and then in the example above he uses mass instead of weight solely for the purpose of making the math not work. im guessing hes just taking basic principles and doing stupid little things like that, which the average highschooler might not catch, but most educated people will.

 

(wait a minute... im in highschool )

[Callipygous]

i particularly like his one on newtons force and work, where he trys to tell us that our definitions of work and force are wrong because he thinks the words themselves mean something different. : )

 

ROFL. check out his one on the big bang. hes not even trying

[reverse]

Wonder what sort of education he has had?

[pulsar-21]

on his thoughts on the big bang he wonders why the galaxys arent colliding well that would be like taking two marbles, spacing them 400 feet away from each other, and then trying to hit one of them blind folded.

[reverse]

This guy is not really worth spending time on.

[Dave]

I read this:

 

Einstein's theory of relativity is insignificant and childish yet it is by many considered: "the biggest theory in physics" Einstein himself is considered to be substitute of the word "genius".

 

Then I laughed. Then I closed the window.

[quick silver]

dave............ the quote that you have at the top of your post................who ever said that is an idiot. just my opinion.

[Sayonara]

I propose we refer to it as "Fizzicks".

[Asimov Pupil]

uhh i think he didn't take anything out of highschool. his comments are redundant and through the use of pure logic that, yes even us high schoolers posess, are proven wrong. I think he just reads things in national geographic and tries to prove them wrong. quite pityable though

[J.C.MacSwell]

I propose we refer to it as "Fizzicks".

 

LOL, that's the exact way I spell it for my physics links folder.

[Ophiolite]

My favourite was

Anybody who is against Einstein is automatically dismissed as "anti-semantic"

, if you get my meaning.

[NeonBlack]

Because... SUN EMITS LIGHT! Therefore it can't ATTRACT something it EMITS!!! If Sun emits light rays, then it could only deflect the light beam from another star AWAY from Sun, not TOWARD it, as it is currently believed... LOL : )

This site is obviously a joke...

[jcarlson]

THis guy is an idiot. Lets just leave it at that. He obvious doesn't realize that all velocity is relative, and that gravity is caused by mass, not weight.

 

10. Copernicus didn�t provide evidence to support his theory.

 

11. Contrary to Copernicus, it's not mathematically possible to �calculate� if the Earth is revolving around the Sun

 

roflmao.

 

I like how he also mentions "Centrifugal" as opposed to "Centripetal" Force about 18 times on every page...

[CanadaAotS]

Because... SUN EMITS LIGHT! Therefore it can't ATTRACT something it EMITS!!! If Sun emits light rays, then it could only deflect the light beam from another star AWAY from Sun, not TOWARD it, as it is currently believed... LOL : )

 

 

This site is obviously a joke...

 

omg thats ridiculous... emit does not = repulse lol

[CanadaAotS]

Now we know that the Earth is not flattened on the top and bottom. If that was true, objects would weigh differently.

 

even though things DO weighh differently at the top and bottom of Earth... lol

 

A mindless explosion would only create chaos with chunks of dirt flying around

 

Oh I bet there was dirt (???) flying around ROFLMAO

 

I can't stand this anymore... I searching the site for an e-mail address and ream this guy out... I'm in grade 12 physics and its embarrassing... my god, a 13 yr old would probably laugh at this stuff

 

EDIT: BTW, his address is pkolasa@hotmail.com...

Have Fun!

[insane_alien]

oo this has got to go on my debunking pseudo-science page. did you guys know that the flat earth society is still around?