From time to time there is just the need to calm down and chill out a bit. If I'm in the need of some cooling-off-minutes I often just fire up another tab on the browser and head to the video below. It's an ultra slow-motion footage of a Saturn V rocket launch underlaid with a very fitting soundtrack.
For me it is just impressive how much power is generated during this liftoff and what quantities of fuel are burned each second (15 tons each second). To get a size impression just have a look at this image where Dr. von Braun is standing in front of the five F-1 engines from the rocket.
If you'd like to have a technical commentary on a Saturn V launch then head over to this video (Update 2014-01-27 new link to Vimeo), otherwise lean back and relax with this one: