Can somebody please explain

[PoopaSwoof]

Slinky physics?

This kinda blew my mind.
I know that there is something profound about this but I cant wrap my tiny little mind around it.:eek

 

[Johnfromokc]

Here ya go PS

http://www.youtube.com/watch?v=2419QiLteE0

 

[retro]

Here's another mind boggling physics trick...

[video=youtube;k9ueZTrRyEY]http://www.youtube.com/watch?v=k9ueZTrRyEY[/video]

 

[darkcgi]

The Navier-Stokes Equations for the velocity in a compact vector notation (top) and

the equation for a density moving through the velocity field (bottom).

Mathematically, the state of a fluid at a given instant of time is modeled as a velocity vector

field: a function that assigns a velocity vector to every point in space. Imagine the air that

occupies a room, its velocity will vary due to the presence of heat sources, air drafts, etc. For

example, the velocity of the air near a radiator will predominantly be pointing in the upward

direction due to heat rising. The distribution of velocities within a room is also quite complex as

is evident when watching the smoke rising from a cigarette or the motion of dust particles in

the air.The Navier-Stokes Equations are a precise description of the evolution of a velocity field

over time. Given the current state of the velocity and a current set of forces, the equations tell

us precisely how the velocity will change over an infinitesimal time step. Figure 1 (top) depicts

these equations in a compact vector-like notation. Very roughly the equation states that the

change in velocity is due to the three terms on the right hand side of the equal sign.

 

[freakofnature]

The Navier-Stokes Equations for the velocity in a compact vector notation (top) and

the equation for a density moving through the velocity field (bottom).

Mathematically, the state of a fluid at a given instant of time is modeled as a velocity vector

field: a function that assigns a velocity vector to every point in space. Imagine the air that

occupies a room, its velocity will vary due to the presence of heat sources, air drafts, etc. For

example, the velocity of the air near a radiator will predominantly be pointing in the upward

direction due to heat rising. The distribution of velocities within a room is also quite complex as

is evident when watching the smoke rising from a cigarette or the motion of dust particles in

the air.The Navier-Stokes Equations are a precise description of the evolution of a velocity field

over time. Given the current state of the velocity and a current set of forces, the equations tell

us precisely how the velocity will change over an infinitesimal time step. Figure 1 (top) depicts

these equations in a compact vector-like notation. Very roughly the equation states that the

change in velocity is due to the three terms on the right hand side of the equal sign.

 

[MsPoppy]

Can someone translate that is less beefy people words:eek

 

[rback33]

That was fun reading