Quantum Phenomena
All observable phenomena are inherently quantum events, but due to the coarseness of our senses and measuring instruments, only in some circumstances are quantum effects manifest. These are known as quantum phenomena.
This sequence of photographs shows that photography is a quantum process. In the fist photographs, the number of photons is very small, and they arrive on the film with a probability proportional to the brightness of the image at that point. The number of photons ranges from about 3 000 in the first exposure to about 30 000 000 in the final exposure [CREDIT: Prof. Thomas D. Rossing, Vision: Human and electronic]
