q**i
发帖数: 174 | 1 we have been tought that certain things move/change in
a pre-determined unit, and there is nothing in between.
For example, an lamp emits light particles; force is
in essence of exchange of particles also.
Questions:
a) why does there exit those "minimum" quantities?
why, for example, cann't a lamp sent out 0.541231231
of a photon? what law determines certain "objects"
take those discrete values? why do the law exist at all?
what would happen in a world where the law doesn't exist?
basically, I | l**n
发帖数: 67 | 2
we have been tought a lot, but the most important lesson
we learn is that we needn't believe what we are tought.
exchange of particles is our cheapest way to describe
the unknown so far. This description may well be the
approximation of a more grand picture. We will never
know how nature works.
nobody knows why they exist, that's what we see.
photon can have continual spectrum. What is discrete is
the energy level of the atom and possibly related with
the absolute unit of angular momentum and c
【在 q**i 的大作中提到】
: we have been tought that certain things move/change in
: a pre-determined unit, and there is nothing in between.
: For example, an lamp emits light particles; force is
: in essence of exchange of particles also.
: Questions:
: a) why does there exit those "minimum" quantities?
: why, for example, cann't a lamp sent out 0.541231231
: of a photon? what law determines certain "objects"
: take those discrete values? why do the law exist at all?
: what would happen in a world where the law doesn't exist?
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