Everything in the Universe consists of both light and dark. They complement each other.
Yin is dark. It describes these qualities:
Yang is light. It comprises of these characteristics:
In particle physics and nuclear physics, particle interactions
illustrate (energy <--> mass)
duality:
Positive kaon (K+) decay in bubble chamber (source:
CERN)
Interesting pages:
P Watkins' Seeing
Particles exercises
Duality
pictures
History of
yin-yang school of thought
where the symbol
comes from.
Accelerators
and Dinosaurs