Is morae a syllable differentiated by its length? Eastern poetry has that. I am still struggling to learn it. Can't be learnt on line.

You can start at Wikipedia (link).
Quote:
A mora ... a unit of sound used in phonology that determines syllable weight (which in turn determines stress or timing) in some languages. As with many technical linguistics terms, the exact definition of mora varies. Perhaps the most succinct working definition was provided by the American linguist James D. McCawley in 1968: a mora is “Something of which a long syllable consists of two and a short syllable consists of one.” The term comes from the Latin word for “linger, delay”, which was also used to translate the Greek word chronos (time) in its metrical sense.
What is a strength?

I think Faldo meant the word strengths.

Ceci n'est pas un seing.