We need to listen to the story that the Chanukah lichtelech
(flames) tell us – The Rebbe Yosef Yitzchak Schneersohn A little
light dispels a lot of darkness – The Sages Light is the core of
physics. Light – energy – defines the very parameters of
existence. In modern physics it is now commonly accepted that
light, or in more general terms, electromagnetic radiation
(microwaves, radio waves, light rays, x rays, gamma rays) has a
dual nature: it behaves both like a wave and a particle. The
same has been proven regarding the behavior of subatomic matter:
it appears as both a particle and a wave. And this is no small
matter: A particle and a wave are opposites. A particle is an
entity confined to a very small volume, while a wave is spread
out over a large region of space. How light can be both a wave
(a field of energy) and a particle (a discrete entity) remains
one of the biggest mysteries in science, yet it has been proven
time and again despite its inherent paradox. A fascinating fact:
Long before science dis