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The Evans Equations of Unified Field Theory - Alpha Institute for ...

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At first this seems strange since the vector <strong>of</strong> the momentum is in the<br />

circle’s two dimensions. However, <strong>for</strong> the torque to be able to be translated into<br />

other quantities in the plane <strong>of</strong> the turning, its vector must be outside those<br />

dimensions.<br />

Imagine a top spinning on a table. <strong>The</strong>re is angular momentum from the<br />

mass spinning around in a certain direction. <strong>The</strong> value <strong>of</strong> the momentum would<br />

be calculated using a cross product.<br />

In relativity, Greek indices indicate the 4 dimensions – 0, 1, 2, 3 as they<br />

are <strong>of</strong>ten labeled with t, x, y, and z understood. A Roman letter indicates the<br />

three spatial indices or dimensions. <strong>The</strong>se are the conventions.<br />

27<br />

Figure 1-5 Torque as an example <strong>of</strong> a cross product<br />

τ = r x F<br />

Tau is a vector, the cross<br />

product <strong>of</strong> r and F, also a<br />

vector.<br />

r, the<br />

radius<br />

F = <strong>for</strong>ce<br />

<strong>The</strong> cross product <strong>of</strong> r and F is the torque. It is in a vector space and<br />

can be moved to another location to see the results. Tensors are similar.<br />

When a tensor is moved from one reference frame to another, the distances<br />

(and other values) calculated will remain invariant.

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