Clay, I'm not wishing to patronise at all - DH and I have both demonstrated
this to students (with fewer pendulums -pendula? I'm not sure either
Brenda), when he as an engineering lecturer and I when teaching physics both
many, many years ago. Then we could both account for what was in the video
in terms of frequency, period, velocity, length of wire and effect of
gravity, plus the dampening effects of air resistance and friction - don't
ask me now though as it's all long been hidden away in the part of my brain
never to be used again.
Lyn's suspicion of maths is to do with the formulae involved in calculating
these, but I can't see a lacemaker even wanting to consider it to be
anything to do with maths - it's a fascinating and mesmerising. Having said
that much of lacemaking is mathematical in many senses - pairs of bobbins,
worked on a grid, counting repeats, thickness of threads, estimating length
of thread required, etc. But how often do we bother to stop and analyse it
like that? In my case rarely - I just enjoy what I'm doing.
I totally agree with Brenda in its connection to lace by repeating at
different intervals along a length of lace and eventually coming together
again. And again, fascinating and mesmerising.
Thanks for posting that Clay, I've recorded it so I can watch it and be
fascinated again and again.
Jean in Poole, Dorset, UK
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