What are length contraction and time dilation?

These are parts of Einstein’s special relativity theory. It claims that as an object moves faster, its length shortens and time slows down relative to an observer. Sungenis argued that these ideas were mathematical inventions used to explain away experimental results that supported a stationary Earth. He illustrated the logic with a paper analogy: if something moving from point A to point B “shrinks,” it will take longer to arrive. To reconcile this, time must be said to “dilate.” He concluded that relativity depends on these theoretical adjustments, which exist only to maintain the assumption of a moving Earth.