**Title**

The Twin Paradox: Why it is Required by Relativity

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**Summary**

This paper reveals that when wavelength-based observations are evaluated using a length-based perspective, that evaluation must explain changes in length and time, which Einstein does using Length Contraction and Time Dilation. It further explains that when wavelength-based observations are evaluated using a wavelength-based perspective, there are no changes in length and time, and the resulting mathematical equations yield quantitatively better results.

**Abstract**

The Twin Paradox is one of the most well known and debated paradoxes associated with Relativity the-ory. Opponents challenge Relativity theory on the grounds that the Twin Paradox reveals an underlying flaw in the theory. Such opponents feel that the existence of a paradox, in and of itself, is sufficient to disqualify the theory. Supporters explain the paradox by introducing the concept of acceleration into the theory, thus limiting the interpretation to the twin that was undergoing the force of acceleration. However, both interpretations fail to explain why Relativity requires the paradox, which is actually the result of using a length based model to in-terpret wavelength based observations. Here we show the proper use and interpretation of wavelength based observations using wavelength based equations, and how the mistaken use of length based equations results in time dilation, length contraction, and the Twin Paradox.

**Status**

- Created: May 2011
- Last Revised: May 19, 2011
- Publication Status: Pending – Conference Proceedings, NPA Conference, University of Maryland 2011