By Cameron Bell

Photons are the discrete particles which light are made out of Photons are the discrete particles which light are made out of They travel at the constant speed of X 10 8 m/s They travel at the constant speed of X 10 8 m/s They have no mass They have no mass They can collide with each other They can collide with each other

Photons have no mass Photons have no mass But they are always moving But they are always moving In a vacuum they move at the speed of light In a vacuum they move at the speed of light

In 1905 Albert Einstein published a paper in which he proposed that light was made of particles called photons In 1905 Albert Einstein published a paper in which he proposed that light was made of particles called photons In 1909 and 1916 he reinforced his statement on photons In 1909 and 1916 he reinforced his statement on photons In 1921 he was awarded the Nobel prize mostly for the theory of relativity but also partially for the discovery of photons In 1921 he was awarded the Nobel prize mostly for the theory of relativity but also partially for the discovery of photons

In water photons travel around 25% slower than when they are in a vacuum In water photons travel around 25% slower than when they are in a vacuum Cherenkov radiation produces a glow and is caused by particles travelling faster that the light around them Cherenkov radiation produces a glow and is caused by particles travelling faster that the light around them Photons are do not point in the direction that they are travelling but point perpendicular to it Photons are do not point in the direction that they are travelling but point perpendicular to it The photon torpedo in star trek is a missile that has a small quantity of matter and antimatter separated in a magnetic container and touch upon impact The photon torpedo in star trek is a missile that has a small quantity of matter and antimatter separated in a magnetic container and touch upon impact

The wave particle duality is the phenomenon where in one instance something can behave as a particle and in another instance (without any progression between the two) can behave like a wave The wave particle duality is the phenomenon where in one instance something can behave as a particle and in another instance (without any progression between the two) can behave like a wave Some example of particles that behave like this are electrons and photons Some example of particles that behave like this are electrons and photons

Thomas young was the first to perform the double slit experiment Thomas young was the first to perform the double slit experiment The experiment shows that if you shoot electrons or photons at something with only one slit in it then it will behave like a particle The experiment shows that if you shoot electrons or photons at something with only one slit in it then it will behave like a particle But if you shoot it at something with more than one slit then it will behave like a wave But if you shoot it at something with more than one slit then it will behave like a wave

When a particle is fired at two slits then it will create two lines behind the slits When a particle is fired at two slits then it will create two lines behind the slits But if a wave is directed to the two slits then it will create an interference pattern But if a wave is directed to the two slits then it will create an interference pattern

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