01987cgm a2200301 i 4500 2550352523 TxAuBib 20240906120000.0 r 160324s2016||||||||||||||||||||||||eng|u 1129543 Kanopy (OCoLC)945760728 VDU eng VDU TxAuBib rda Niagara Falls: Raging Rapids [Kanopy]. [San Francisco, California, USA : Kanopy Streaming, 2016. 1 online resource (1 video file, approximately 56 minutes) : digital, .flv file, sound. tdi rdacontent c rdamedia cr rdacarrier In Process Record. Title from title frames. Originally produced by Janson Media in 2004. Now, in an inspiring film, we probe the secrets of Niagara Falls. From helicopter and speedboat, at high-tech labs and at rope's end, we join earth scientists as they struggle to piece together the epic life story of North America's most celebrated natural wonder. We experience the Falls that daredevils and stunters could never tame -- the Niagara that is a vertical battleground between water and rock. Most think of it as a vision eternal, but in fact, Niagara's life has been a geological blink of the eye. Only a hundred and twenty five centuries ago it was unleashed, born of the last glacial surge that swept the continent. Since then, it has traveled more than seven miles upriver, cutting the Earth's crust like a knife. Its relentless procession has granted scientists a breathtaking window into the past. Soon enough, they've discovered, the Falls and its raging rapids will see to their own destruction. But not without leaving their lasting impression on the world, and on Niagara's admirers. Mode of access: World Wide Web. K-12. Kanopy (Firm). https://USERNAME.kanopy.com/node/129544 https://www.kanopy.com/node/129544/external-image