Snag Films has some great educational content available for free viewing. One great example of this is their National Geographic channel containing 75 full-length documentaries. You can view these videos online or use the iPad, Android tablet, and Kindle Fire apps to watch Snag Films.
Where and when the next mega disaster will strike -volcanic eruption, earthquake, tsunami or hurricane-is the focus of VIOLENT EARTH. Join tsunami scientist Jose Borrero of the University of Southern California on his trip to visit Banda Aceh with a National Geographic film team, barely one week after the December 26, 2004, tsunami-a tsunami so strong it actually moved the island of Sumatra a hundred feet.