Some facts are so ingrained in our consciousness that we can’t avoid taking them for granted. We accept the existence of deserts, but unfortunately we rarely wonder why they exist where they do and what causes their creation. Once again, Henry Reich brings the subject to life with a brief but beautifully simple animation that attempts to answer these questions. Because the video is fast-paced, you might need to pause it once or twice to make sure you didn’t miss anything, but it is an extremely satisfying feeling to learning something completely new after spending just 2 minutes. Of course in order to be concise, the video glosses over several important details including an explanation for why cold air doesn’t hold moisture as well as warm air (here is an explanation and two instruction activities to go with it), but this leaves room for further exploration.