The 7th dimension in physics is the 6th dimension (infinite possibilities) x the start of the event. In other words, infinite possibilities all start at the exact same time. But I don't think this is...
When a reference is used to four-dimensional co-ordinates, it is likely that what is referred to is the three spatial dimensions plus a time-line.
Taken from Wikipedia, the free...
The English word 'physics' has a couple of different senses or meanings: 1: the physical properties, phenomena, and laws of something; 2: the science of matter and energy and their interactions
While no scientific theory is ever (or should be) closed to controversy, the answer currently accepted by most Physicists (thanks to Einstein) is that the fourth dimension is time, or that time is...
A continuum of a measureable quantity that cannot be resolved from a linear arrangement of any other dimensions.
Usual dimensions might be space and time, measured with three orthogonal spatial axes...