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NASA Connect - AO - Archeoastronomy (2005)
First segment of NASA Connect Ancient Observatories explaining the foundations of astronomy and the how the Earth moves relative to the sun. This segment explains how the Earth's tilt creates...

Genre: Educational
Keywords: NASA Connect; Archaeoastronomy; Geometry; Angles; Obtuse; Acute; Right; Sun; Earth; Four Seasons; Summer; Fall; Winter; Spring; Summer Solstice; Fall Equinox; Winter Solstice; Spring Equinox; Gnomon; Sundials; Ancient Observatories; AO;
Duration: 00:07:50
Popularity (downloads): 1688
 
Spring Comes to a Pond (1952)
Uses indigenous sounds as a background for closeups of life around a New England pond during the spring.

Genre: Ephemeral
Keywords: Natural history;Birds;Seasons;
Duration: 00:11:47
Popularity (downloads): 337
 
Case of Spring Fever, A (1940)
Gilbert Willoughby is punished for voicing Luddite ideas (complaining about pesky springs) by 'Coily,' an obnoxious, animated spring who subjects him to the hassles of a springless world.

Genre: Ephemeral
Keywords: Physics: Springs;Animation;Technology: Critiques;
Duration: 00:08:15
Popularity (downloads): 1045
 
Lake Powell, segment 09 of 11 (1997)
The side canyons have sparkling streams and cool springs, camping is an adventure unto itself

Genre: Documentary
Keywords: Construction;Dam
Duration: 00:04:05
Popularity (downloads): 443
 
How Water Won the West, segment 04 of 8 (1986)
The water cycle begins with winter snows in the mountains, continuing with spring thaws

Genre: Documentary
Keywords:
Duration: 00:02:03
Popularity (downloads): 448
 
San Francisco Longshore Strike (Part II) (1934)
Longshoremen close down the Port of San Francisco in the spring of 1934.

Genre: Ephemeral
Keywords: San Francisco: Labor;Labor: Strikes;
Duration: 00:05:05
Popularity (downloads): 67
 
San Francisco Longshore Strike (Part I) (1934)
Longshoremen close down the Port of San Francisco in the spring of 1934.

Genre: Ephemeral
Keywords: San Francisco: Labor;Labor: Strikes;
Duration: 00:01:54
Popularity (downloads): 139
 
Challenge at Glen Canyon, segment 08 of 11 (1996)
Lake Powell was rising, a completed spillway was inspected

Genre: Documentary
Keywords:
Duration: 00:02:25
Popularity (downloads): 587
 
Challenge at Glen Canyon, complete video (1996)
Heavy spring snow caused heavy runoff which, in turn, caused flooding along the Colorado River System. Consequently, unwanted cavitation occurred in the spillways at Glen Canyon Dam. This video describes...

Genre: Documentary
Keywords:
Duration: 00:26:57
Popularity (downloads): 2476
 
Wetlands Regained, segment 01 of 8 (1991)
Wetlands Regained

Genre: Documentary
Keywords:
Duration: 00:01:17
Popularity (downloads): 1103
 

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