This is a one liner about the meat and potatos of what is happening:

In this experiment when the pressure is released the temperature inside of the bottle decreased so a cloud form inside it and the alcohol act as aerosols

Scientists Howard and Lamarck were pioneers in weather forecasting and here is some history about their work from wikipedia:

After centuries of speculative theories about the formation and behavior of clouds, the first truly scientific studies were undertaken by Luke Howard in England and Jean-Baptiste Lamarck in France. Howard was a methodical observer with a strong grounding in the Latin language and used his background to classify the various tropospheric cloud types during 1802. He believed that the changing cloud forms in the sky could unlock the key to weather forecasting. Lamarck had worked independently on cloud classification the same year and had come up with a different naming scheme that failed to make an impression even in his home country of France because it used unusual French names for cloud types. His system of nomenclature included twelve categories of clouds, with such names as (translated from French) hazy clouds, dappled clouds and broom-like clouds. By contrast, Howard used universally accepted Latin, which caught on quickly after it was published in 1803.^[6] As a sign of the popularity of the naming scheme, the German dramatist and poet Johann Wolfgang von Goethe composed four poems about clouds, dedicating them to Howard. An elaboration of Howard’s system was eventually formally adopted by the International Meteorological Conference in 1891.^[6]

We hope you like the video and thanks to the experimenter for walking us through.

thanks to sciencedump.com for the great info