Part one of term paper
is what we see. It can be thought of either as a particle, (the photon), or as a wave. The photon we can easily think of as a small dot travelling through space at the speed of . Each photon has a particular colour or energy. But how do we think of as a wave? For this we need to know that is also an "Electro-magnetic field" -- a combinatio ...

Part two of term paper
... spin of 1. has the properties of both particle and waves. If we look for photons we will find them, but if we look for wave -like properties we can see them too. However, we cannot see both particle and wave properties at the same time. It is often useful to confine in an optical-cavity. This allows us both to make more intense , as well as select of a particular colour (or energy). ¨ travels at a speed of 2.99792458x10^{8} ms^{-1} ¨ When passing though matter, is slowed down by brief ...