171,872,123 Videos Watched

Age Filter: Click to Set

Embed Video
Embed Video:
URL of source video:
Simply give the URL and we will get the embed code automatically, if we support embedding from the site.


There are 4 videos in this category and 0 videos in 0 subcategories.

Category Videos
Not Right For WatchKnowLearn
Ages: 13 - 18
Nicolaus Copernicus
From howstuffworks.com, produced by How Stuff Works
Nicolaus Copernicus, an astronomer who believed the the sun was the center of the solar system is the subject of this two-minute video This contradicted church teachings at the time, which said that the Earth was the center of the solar system.  Nico... [more]
Found by freealan in Astronomers
September 25, 2011 at 12:18 PM
  • Favorites

Not Right For WatchKnowLearn
Ages: 14 - 18
Carl Sagan: Astronomer of the People
From YouTube, produced by Biographics
July 14, 2019 at 11:13 AM
  • Favorites

Not Right For WatchKnowLearn
Ages: 11 - 18
Carl Sagan Explains the Pioneers of Science
From wimp.com
This video has an excellent explanation of science developed and its constant struggle with myths. The video stresses the first known scientist and this makes an excellent video to introduce student to the history of science. (09:18)
Found by freealan in Astronomers
December 10, 2011 at 01:17 AM
  • Favorites

Not Right For WatchKnowLearn
Ages: 10 - 18
Copernicus and the Church, Part 2
From classroomclips.org, produced by A Moment in Time
The year was 1540. Nicolaus Copernicus' controversial theory that the planets revolved around the sun instead of the Earth was about to become public.  (03:58)
Found by ggurley in Astronomers
June 28, 2012 at 12:13 PM
  • Favorites
History [show]

Loading history...

Please make your comments on categories positive, and not just negative.

People work hard on educational categories, and we want to encourage them to make more!

  • Profanity (curse words), sexually suggestive remarks, and other such obviously inappropriate comments will be deleted immediately, and are grounds for immediate expulsion. Remember, children use this website.
  • Personal criticism on project forums and in video content is not allowed and will be deleted immediately. Any violations of this rule could result in expulsion from the project so please, no insults or other negative personal remarks.
  • Very harshly-worded criticism of content will also be deleted promptly. Please use your vote to express your harshest feelings. Repeated violations of this rule can result in expulsion. If you must criticize another person's hard work, then be nice about it.
If you want to comment, please sign in