Greg,
Let's break your post down and see if it makes any sense:
If you contain some mercury in a sealed round "bubble" (hope you can understand this)
A hollow sphere filled with mercury?
must have a whole bunch of magnets rotating around this mercury
Surrounded by rotating magnets (or are the magnets rotating around the sphere)?
The magnets have powerful magnet fields or their angular momentum is powerful due to their mass, radius and rate of spin?
given your Earth's gravity
That is a given - all massive bodies have an associated gravitational field
This is
not a given - what the heck is free energy?
Etcetera? Maybe some details need to be filled in here. Etectera is slightly vague.
A flying saucer
can manipulate speed, time and dimensions
So can I. So can you. We can all manipulate speed (gas pedal - brake pedal), time (go fast, stand by a ball of lead or mercury or any other mass...may not be much but it is a manipulation), dimensions (go left, go right, go forward, go backwards, go up, go down...in addition to manipulating time).
What do you mean by "dimensions". In science and math a dimension is a degree of freedom (DOF) expressed as one axis on a graph of one or more axes and by a variable in a math equation.
Time is a dimension, speed (or better, velocity) is normally a four dimensional expression that includes the time dimension - unit change in location (x,y,z) per unit change of time (t). Because velocity is a vector quantity you also derive the direction of the change in location, and then you graph it.
Can you understand any better darby???
Absolutely not other than to parse the fragments of the sentence. Does it make any scientific sense? No.
As I said, why don't you lose the made up jargon and just say in plain, simple English what it is you want to say. Really, it would go much faster if I understood what it is you are attempting to say.