The great German-American physicist, Albert Einstein, is generally given credit for realising that the passage of time is not a fixed property of our universe. But I believe that there may be evidence of a prior Welsh discovery that time passing can be perceived differently by different observers.
Consider these data taken from the Census Forms completed by the residents of 64 Vale Road, Rhyl.
|Name||Age at Census|
|Jennie Davies||7 months||10|
Perhaps the most basic statement of the principle of special relativity should be — the older you are, bach, the more slowly you age.