Theory that relates to the study of time travel. Often seen causing major paradoxes, such as the Dali Paradox, Grandfather Paradox, Pogo Paradox and the Predestination Paradox.
The Dali Paradox is when a temporal fissure slows time to a gradual halt. Also called the "melting clock" effect
The Grandfather Paradox is when a person travels to a point in the past before they were born and kills one of their own ancestors, taking themselves out of the picture before they were able to travel back in time.
The Pogo Paradox is where interference designed to prevent an event actually triggers the same event.
The Predestination Paradox is like as follows: Say a man goes back in time and impregnates his great-great grandmother. The grandmother would thus give birth to one of the man's great grandparents, who would then give birth to one of his grandparents, who would then be able to give birth to one of his parents, and finally to the man himself. As a result, the man's very existence would be pre-determined by his traveling to the past, and therein lies the paradox.
The Grandfather Paradox is when a person travels to a point in the past before they were born and kills one of their own ancestors, taking themselves out of the picture before they were able to travel back in time.
The Pogo Paradox is where interference designed to prevent an event actually triggers the same event.
The Predestination Paradox is like as follows: Say a man goes back in time and impregnates his great-great grandmother. The grandmother would thus give birth to one of the man's great grandparents, who would then give birth to one of his grandparents, who would then be able to give birth to one of his parents, and finally to the man himself. As a result, the man's very existence would be pre-determined by his traveling to the past, and therein lies the paradox.
by Itallian Stallion March 20, 2005
A bullshit term car sellers use when they’re trying to scam someone by selling them their trashed car instead of sending it to the scrapyard.
Buyer: *Searching for cars on OfferUp*
Seller’s ad: MECHANIC’S SPECIAL!!! 2020 Mustang for sale, engine and transmission are completely blown. The front end is missing due to a high speed collision. Owes $500 in tags and I lost the pink slip. Easy fix, great deal! $15,000 price is firm.
Seller’s ad: MECHANIC’S SPECIAL!!! 2020 Mustang for sale, engine and transmission are completely blown. The front end is missing due to a high speed collision. Owes $500 in tags and I lost the pink slip. Easy fix, great deal! $15,000 price is firm.
by SonicFlare January 9, 2022
Lagrangian Mechanics is the reformulation of Newtonian Mechanics that utilizes the Lagrangian defined by
L=T-U
where
T= total kinetic energy of a system of particles
U= sum of the potential energy functions of a system of particles
In other branches of physics, the Lagrangian is defined as the function
L: TQ--> R
Where Q is the configuration space, a subset of R^3N
such that the action, defined as the functional,
A(q)= int(L) dt
when it reaches stationary value at {q(t)}, will male {q(t)} the equations of motion.
Note, int() means the integration notation with the limits of integration being positive an negative infinity, respectively.
It is shown, using the Calculus of Variations, that the equations of motion are in such a way that they satisfy the Lagrange's Equations of motion
D(d(L)/dv)-d(L)/dq=0
Where D is the differential operator with respect to time, d/dx stands for partial differentiation, and v is the generalized velocity.
L=T-U
where
T= total kinetic energy of a system of particles
U= sum of the potential energy functions of a system of particles
In other branches of physics, the Lagrangian is defined as the function
L: TQ--> R
Where Q is the configuration space, a subset of R^3N
such that the action, defined as the functional,
A(q)= int(L) dt
when it reaches stationary value at {q(t)}, will male {q(t)} the equations of motion.
Note, int() means the integration notation with the limits of integration being positive an negative infinity, respectively.
It is shown, using the Calculus of Variations, that the equations of motion are in such a way that they satisfy the Lagrange's Equations of motion
D(d(L)/dv)-d(L)/dq=0
Where D is the differential operator with respect to time, d/dx stands for partial differentiation, and v is the generalized velocity.
Bob: Why is general relativity so tough to learn?!
Doug: Cause' you don't know enough Lagrangian Mechanics!
Doug: Cause' you don't know enough Lagrangian Mechanics!
by pinu7 November 12, 2009
The name given to a person's nose when, during a deep throat of a penis, it bottoms out on the pubic area befor the lips do.
"She could have choked down my entire length, but her mechanical stop left two inches of bare shaft visible."
by Greg T. James June 2, 2005
A branch of physics in which the measurable qualities (position, momentum, energy) of a system are described by "observables." The system, upon measurement by the given observable, after being in a superposition of multiple states, collapses into one of a variety of states allowable by the Schrodinger equation. The exact state the system collapses into, is probablistically determined.
X|s1>=x1|s1>
In this example, |s1> is the system being "measured" by the observable X (X denoting the position observable, allowing us to see where the system is within space.) We obtained |s1> as a single state, from a previously superposed (|s> = |s1>+|s2>+|s3>+...)state through an earlier measurement, which collapsed |s> into |s1>, and allowed us to measure the value x1 for its position. In quantum mechanics, all of this information is encoded in the language of vector spaces, as well as linear algebra, and expanded into whats known as a hilbert space (can be thought of as an infinite dimensional vector space).
I'm probably going to get all thumbs down for this, but that's cool, you guys are all the same audience that jerks it to youtube, and probably added a new definition for "poop" or something stupid like that on this site.
In this example, |s1> is the system being "measured" by the observable X (X denoting the position observable, allowing us to see where the system is within space.) We obtained |s1> as a single state, from a previously superposed (|s> = |s1>+|s2>+|s3>+...)state through an earlier measurement, which collapsed |s> into |s1>, and allowed us to measure the value x1 for its position. In quantum mechanics, all of this information is encoded in the language of vector spaces, as well as linear algebra, and expanded into whats known as a hilbert space (can be thought of as an infinite dimensional vector space).
I'm probably going to get all thumbs down for this, but that's cool, you guys are all the same audience that jerks it to youtube, and probably added a new definition for "poop" or something stupid like that on this site.
by JP2269 October 20, 2006
by kelamist August 10, 2018
A game made by the company named Axolot. It started really early on as a prototype for Minecraft: Xbox 360 Edition, but it ended up becoming what you see today.
by es em kay May 20, 2017