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Topic: Physics question
Waisztarroz
I love democracy
posted 05-28-2002 04:09:12 PM
If something had a negative mass, does that mean it would require less and less force to be propelled forward or that it would give off more and more force as it propelled forward?

Interesting question, I suppose, and I'm sure someone here knows.

Yes, that's right, hot live sex!
There's a raptor behind you.
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Tristan
Vidi, vici, veni.
Nae's Stooge
posted 05-28-2002 04:12:49 PM
quote:
Waisztarroz's fortune cookie read:
If something had a negative mass, does that mean it would require less and less force to be propelled forward or that it would give off more and more force as it propelled forward?

Interesting question, I suppose, and I'm sure someone here knows.


Gut reaction is that negative mass = negative gravity.

alltho it might also meen that it would annihalate itself after comeing into contact with normal matter.

Veni, vidi, vici
Tarquinn
Personally responsible for the decline of the American Dollar
posted 05-28-2002 04:13:28 PM
Negative mass?!?

So you had to add mass to such an object if you wanted it to weigh nothing?

~Never underestimate the power of a Dark Clown.
Trillee
I <3 My Deviant
posted 05-28-2002 04:13:44 PM

NOOO PHYSICS!!! >.<

`Doc
Cold in an Alley
posted 05-28-2002 04:18:02 PM
Any object with negative mass would slowly expand due to the repulsion forces created by its negative mass. In doing so, it would absorb negative amounts of energy (thus releasing energy). This would hold true so long as the negative mass matter did not come in contact with any positive mass matter. If negative mass matter contacted positive mass matter, the two would destroy each other, with no net change in mass or energy.
Base eight is just like base ten, really... if you're missing two fingers. - Tom Lehrer
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`Doc
Cold in an Alley
posted 05-28-2002 04:19:03 PM
Addendum: Fennar beat me to it.
Base eight is just like base ten, really... if you're missing two fingers. - Tom Lehrer
There are people in this world who do not love their fellow human beings, and I hate people like that! - Tom Lehrer
I want to be a race car passenger; just a guy who bugs the driver. "Say man, can I turn on the radio? You should slow down. Why do we gotta keep going in circles? Can I put my feet out the window? Man, you really like Tide..." - Mitch Hedberg
Please keep your arms, legs, heads, tails, tentacles, pseudopods, wings, and/or other limb-like structures inside the ride at all times.
Please submit all questions, inquests, and/or inquiries, in triplicate, to the Department of Redundancy Department, Division for the Management of Division Management Divisions.

Kyubi
Pancake
posted 05-28-2002 04:21:07 PM
quote:
Ford Prefect had this to say about Knight Rider:
Any object with negative mass would slowly expand due to the repulsion forces created by its negative mass. In doing so, it would absorb negative amounts of energy (thus releasing energy). This would hold true so long as the negative mass matter did not come in contact with any positive mass matter. If negative mass matter contacted positive mass matter, the two would destroy each other, with no net change in mass or energy.


[ 05-28-2002: Message edited by: Kyubi ]

Waisztarroz
I love democracy
posted 05-28-2002 04:22:07 PM
What I'm asking, though, is would it continue to send out more and more energy as it sped up? What would be the determining factor in how fast an object of negative mass could travel?

[ 05-28-2002: Message edited by: Waisztarroz ]

Yes, that's right, hot live sex!
There's a raptor behind you.
Resident grammar whore.
Warning, flames imminent!
`Doc
Cold in an Alley
posted 05-28-2002 04:26:24 PM
Its acceleration would slowly decrease as it expanded and the negative gravitational forces eased. Its maximum speed would suffer the same limitations as matter with positive mass.

Objects of positive mass would be attracted to objects of negative mass, so isolating your negative mass matter would be very complicated. Note also that positive and negative mass matter accelerating towards each other would result in no net energy change.

Base eight is just like base ten, really... if you're missing two fingers. - Tom Lehrer
There are people in this world who do not love their fellow human beings, and I hate people like that! - Tom Lehrer
I want to be a race car passenger; just a guy who bugs the driver. "Say man, can I turn on the radio? You should slow down. Why do we gotta keep going in circles? Can I put my feet out the window? Man, you really like Tide..." - Mitch Hedberg
Please keep your arms, legs, heads, tails, tentacles, pseudopods, wings, and/or other limb-like structures inside the ride at all times.
Please submit all questions, inquests, and/or inquiries, in triplicate, to the Department of Redundancy Department, Division for the Management of Division Management Divisions.

Falaanla Marr
I AM HOT CHIX
posted 05-28-2002 05:16:01 PM
MY BRAIN IS FRYING.
Bloodsage
Heart Attack
posted 05-28-2002 05:25:28 PM
Energy = mass*c^2, remember?

Given the nature of the universe, negative mass isn't possible.

To reign is worth ambition, though in Hell:
Better to reign in Hell than serve in Heaven.

--Satan, quoted by John Milton

Falaanla Marr
I AM HOT CHIX
posted 05-28-2002 05:32:12 PM
quote:
Bloodsage's unholy Backstreet Boys obsession manifested in:
Energy = mass*c^2, remember?

Given the nature of the universe, negative mass isn't possible.


Yes, negative mass is possible. Well, negative brain mass, that is. See a few of our friendly neighborhood banned posters.

Naota Nandaba
Don't ask me about any goddamned bannings!
posted 05-28-2002 05:34:26 PM
quote:
Verily, Falaanla Marr doth proclaim:
Yes, negative mass is possible. Well, negative brain mass, that is. See a few of our friendly neighborhood banned posters.

Nothing amazing happens here.
Only the ordinary.
Falaanla Marr
I AM HOT CHIX
posted 05-28-2002 05:36:40 PM
quote:
When the babel fish was in place, it was apparent Kegwen 2.0 said:

luv u lets cyber la~

Tristan
Vidi, vici, veni.
Nae's Stooge
posted 05-28-2002 05:38:13 PM
quote:
Bloodsage had this to say about Matthew Broderick:
Energy = mass*c^2, remember?

Given the nature of the universe, negative mass isn't possible.


Not quite, the real equation is E^2 = M^2*c^4

takeing the square root of both sides gives you E = M*c^2

So negtive mass and energy are both possable.

Veni, vidi, vici
Naota Nandaba
Don't ask me about any goddamned bannings!
posted 05-28-2002 05:41:46 PM
quote:
Falaanla Marr thought about the meaning of life:
luv u lets cyber la~

i am sudarz but he mite undrstaind...

*drags Fal off, glancing around for Suddar*

Nothing amazing happens here.
Only the ordinary.
Suddar Williams
SUDAR WILAMS
posted 05-28-2002 05:52:34 PM
I want your sex, Kegwen.
Cadga
Quite Insane
posted 05-28-2002 05:53:20 PM
quote:
How.... Suddar Williams.... uughhhhhh:
I want your sex, Kegwen.

OH YEHA GEORGE MICHEAAL!!

YEY!

Professional Sinner/Heretic
My mindless dribble
Naota Nandaba
Don't ask me about any goddamned bannings!
posted 05-28-2002 05:53:44 PM
^^^^
Nothing amazing happens here.
Only the ordinary.
Bloodsage
Heart Attack
posted 05-28-2002 06:18:15 PM
quote:
Fennar had this to say about (_|_):
Not quite, the real equation is E^2 = M^2*c^4

takeing the square root of both sides gives you E = M*c^2

So negtive mass and energy are both possable.


Since when does one say the "real" definition of one-quarter is one-half squared, making it possible that things are made of negative parts?

Nothing I've ever seen in years of reading physics casually has mentioned negative mass. There was some SF-type speculation about particles that moved no slower than light (tachyons), but the math doesn't support their existence.

Negative mass is an absurdity, unless you know something you're not telling.

To reign is worth ambition, though in Hell:
Better to reign in Hell than serve in Heaven.

--Satan, quoted by John Milton

Razor
posted 05-28-2002 06:52:49 PM
1. Light has meen measured at about 38 mps through superdense gas

2. -mass (theoritical) would force the expansion of the universe and be only found at the edge, otherwise the likeliness of it finding +mass would be a lot higher

3. there is no real negative root for E^2=m^2c^4 via regular methods of those after unified theory, only "positive" is real here.

I'll bring more later after I go through a few books

Astronomy is a passion...
Engineering is a love...
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Pvednes
Lynched
posted 05-29-2002 05:36:10 AM
I think I'll go with what was taught in physics, and Bloodsage.

Negative mass is a consideration of psudoscience, or a mathematical error.

At least, unless something really radical proves this incorrect.

[ 05-29-2002: Message edited by: Pvednes Phoenixfeather ]

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