• 7 Videos, Slides, Films

• 4 Discoveries in science
• 4 Physics
• 4 Quantum theory
• 3 Civil rights
• 3 Constitutional history
• 3 Constitutional law
• 3 Liberty
• 3 Political activists
• 3 Political participation
• 3 United States Constitution
• 2 Dynamics
• 2 Mechanics
• 2 Study and teaching
• 1 Astronomy
• 1 Chemical bonds
• 1 Chemical elements
• 1 Chemistry, Physical and theoretical
• 1 Galaxies
• 1 Heat
• 1 Heat-engines
• 1 Inorganic compounds
• 1 Organic compounds
• 1 Reconstruction (U.S. history, 1865-1877)
• 1 Stars

• 7 Films Media Group
• 7 Films for the Humanities & Sciences (Firm)

• 7 English

• 3 United States
• 1 Outer space

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