by 
Pendulum Wave: Seems like magic, but it’s Physics and Mathematics.
Sometimes just witnessing a physics demonstration can inspire people
to look more deeply into conceptual nature of the demonstration and strengthen their critical thinking skills.
The Pendulum Wave is a device that provides such an opportunity.
It consists of a series of pendulum with increasing periods that when simultaneously released,
produce the effect of a changing transverse wave that cycles back to the beginning conditions…
Ο ΚΩΔΙΚΑΣ ΑΣΦΑΛΕΙΑΣ ΤΗΣ ΣΕΛΙΔΑΣ ΔΕΝ ΕΠΙΤΡΕΠΕΙ ΤΗΝ ΠΡΟΣΘΗΚΗ “iframe” ΟΠΟΤΕ
…ΔΕΙΤΕ ΤΗΝ ΟΠΤΙΚΟΠΟΙΗΣΗ ΤΟΥ ΦΑΙΝΟΜΕΝΟΥ (ΑΝΑΓΚΑΣΤΙΚΑ) ΕΔΩ >>>>>>>>>>
…ή ΕΝΑΛΛΑΚΤΙΚΑ ΚΑΙ ΕΔΩ >>>>>>>>>>
