This timelapse is called Time-lapse Video of growing Magic Christmas Tree / Zeitraffer-Aufnahme von wachsendem Zauber-Baum, and was created by an awesome Primelapse user on YouTube on YouTube. It is 00:01:04 long. The last time we checked (on March 31st, 2015), it had around 120,000 plays on YouTube
Time-lapse video of a commercial “magic christmas tree” growing in 1125x speed.
The tree is made out of coloured paper and the container at the bottom is filled with water containing a dissolved salt. The paper is soaked with the solution and while the water evaporates the crystals grow.
Video made by single photo shots (Nikon D40) every 45s.