" GROUND WATER " 1935 EDUCATIONAL FILM GEOLOGICAL STUDY OF WATER TABLE & WATERSHED XD75594a

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"Ground Water" is an instructional film from 1935 that traces the movement of water through the watershed. It was made by ERPI classroom films (later to be known as Encyclopedia Britannica Films) which was founded in the 1920’s. (ERPI; along with other film companies such as Eastman Teaching Films, Pathe Exchange and Coronet Instructional films produced works for educational use. Encyclopedia Britannica would go on to become one of the leading film producers for schools and libraries from the 1940’s to the 1990’s.)
The film opens with rain bubbling and collecting on the surface of the ground (:31). This water will penetrate the soil eventually forming ground water (:32). Ground water trickles back up and out of a tiny spring (:41). An underground channel (:47) leads to a geyser (:49). A diagram follows to show the path of the groundwater (:58) as it feeds a well. The upper surface of the saturated ground is known as the water table (1:33). The water table rises (1:41). Layers of shale rest atop the groundwater (2:26). This collection of water is known as a reservoir (2:31) which can be tapped as water flows from a well (2:40). Ground water naturally seeps from porous rocks (2:54). A hot spring erupts (3:04). Minerals left behind from hot water springs build terraces (3:18). A sample of small plant life growing within the terraces is plucked (3:29). Deposits are quarried (3:42). The rock pictured is travertine rock to be used for ornamental wall finishes. A bubbling geyser follows (4:02). A diagram displays activity under the geyser (4:13). Daisy Geyser in Yellowstone National Park (5:15) is pictured. Old Faithful blows hourly (5:34) during winter and summer months. The Norris basin sits nearby (5:51). The film turns to an underground chamber in Carlsbad, New Mexico (7:09). A sketch shows the process of the formation of stalagmites (6:59). Actual formations follow from Carlsbad (7:09). Wispy deposits known as moss are pictured (7:33). A stream flows through Mammoth Cave in Kentucky (7:47). An animation shows what happens when a cave’s roof collapses (8:13). The durable roof left behind forms a natural bridge (8:30). The Petrified Forest National Park in northeastern Arizona (8:43) is visited. Here, skeletons of ancient animals are preserved (9:12). A dinosaur skull appears (9:21). The interior of a geode follows (9:32). Rich Iron ores exist in the Lake Superior regions (9:39). This was an ERPI Classroom Film (10:17).
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This film is part of the Periscope Film LLC archive, one of the largest historic military, transportation, and aviation stock footage collections in the USA. Entirely film backed, this material is available for licensing in 24p HD, 2k and 4k. For more information visit www.PeriscopeFi...

[@quentinrawlins4876]

Just got to say that this channel is doing a true public service. Don't stop please 😅😊

[@joepaullawncare7222]

You can help by donating money to periscope

[@woodhonky3890]

It's good to be reminded how intelligent people were back then.

[@ngrader]

Somebody had to invent teh Internets... And Brawndo.

[@brucewinningham4959]

The people of Yesteryear had to be Intelligent just to Survive. Sadly, they don't get the Credit they Deserve.

[@johnrudy9404]

A well rounded education contains information and structure in order to facilitate better application of ideas and concepts. The students of today are being shortchanged..

[@brucewinningham4959]

I absolutely Agree on the Short Changing!

[@bas1010]

Wonderful film. Sounds like James Brill narrating.

[@bobbysenterprises3220]

Video goes good with a mixture of Scotch, water and frozen water

[@timothydevries383]

Back when we could present information logically without bias.

[@bentaylor8342]

To bad they don't show these kind of tutorials in schools instead of wokisum!

[@scratchdog2216]

9:26 Some geodes have water in them, which I find utterly fascinating. Polish one side and a bubble will show. One of life's endless wonders.

[@brucewinningham4959]

Interesting! I did NOT know this. THANKS.

[@spikymikie]

I prefer sky water. I tried a water table once. Plates just sort of fell to the ground. Now water Beds are good. They use in between water. And thats OK.

[@bobbysenterprises3220]

Just make sure you know where your towel is

[@manhoot]

Water water everywhere but not a drop to drink

[@bas1010]

Water water everywhere and yet the boards did shrink

[@brucewinningham4959]

@manhoot -- You must currently live in the Eastern part of the USA. Water is NOT as Plentiful in the Western part and it is expected to get WORSE in future years.

[@tjmmcd1]

Now children, memorize and parrot-back what you were told; which is all 100% true because the man said so.

[@spikymikie]

This needs Riffing from Rifftrax, just saying......

[@J_Calvin_Hobbes]

👍

[@melchristian8876]

👍🌞

[@deandupont5503]

"... The ground water *probably* came in contact with hot rocks." As opposed to....? 🤔