Book

This book proves that Einstein didn't understand his own equations. He said: In the prior equations there is a function whose value we will determine via "a third system K? relative to which system k moves at -v. By a twofold application of our equations we obtain ..." He then said "K and K? are at rest with respect to one another". If so, then, K' had to be rotated 180 degrees on X; so his x' = x should be -x' = x. However -v was the velocity of k as plotted by K. K' had no role in what followed: "The length of the moving rod does not change" if v and -v are interchanged so ?(v) = ?(-v)= 1. Suppose K' moves at v as plotted by k, which is moving at v on X of K. If vertical rods shrink as v increases, k rods will be shorter than K rods and longer than K' rods even though K and K' move at v = -v in the opposite sense and direction as plotted by k. Einstein's equations thus never did reach Poincare's "Lorentz Transformation Eqautions" in which ?(v) = 1.