Russell's Paradox - a simple explanation of a profound problem
Jeffrey Kaplan2 years ago • Duration: 28:28
8,799,915 views
How the Elite rigged Society (and why it’s falling apart) | David Brooks
Alliance for Responsible Citizenship4 months ago • Duration: 14:17
4,782,254 views
Carl Sagan's 1994 "Lost" Lecture: The Age of Exploration
Carl Sagan Institute6 years ago • Duration: 1:36:01
2,055,896 views
Carl Sagan testifying before Congress in 1985 on climate change
carlsagandotcom3 years ago • Duration: 16:54
3,796,227 views
Stupidity: A powerful force in human history
Brief But Spectacular1 year ago • Duration: 12:36
630,939 views
Carl Sagan Christmas Lecture 1 - The Earth as a Planet
carlsagandotcom3 years ago • Duration: 59:49
234,489 views
Harvard Professor reveals the Science of Happiness in 15 minutes | Arthur Brooks [ARC 2025]
Alliance for Responsible Citizenship4 months ago • Duration: 14:53
1,022,783 views
Beyond the Science: Environmental Problems…Cultural Solutions | Paul K. Doss | TEDxEvansville
TEDx Talks7 years ago • Duration: 13:25
90,578 views
How do we know climate change is caused by humans?
Sabine Hossenfelder1 year ago • Duration: 6:23
608,460 views
The 1993 Bunyan Lecture: Carl Sagan - “Is There Intelligent Life on Earth?”
Stanford Physics8 years ago • Duration: 2:07:07
824,518 views
How Would We Communicate with Alien Life? - with Carl Sagan
The Royal Institution7 years ago • Duration: 8:17
284,885 views
Niall Ferguson: What Technophiles Should Learn from Medieval Universities
University of Austin (UATX)3 days ago • Duration: 1:27:36
New 15,411 views
New Evidence We Are Entering An Ice Age Termination Event - EXPLAINED
Dr Ben Miles1 year ago • Duration: 18:07
3,859,171 views
Why Humanity Must Overcome Religion | Carl Sagan
A Dose of Reason8 months ago • Duration: 14:12
953,371 views
Carl Sagan Christmas Lectures 3 - The History of Mars
carlsagandotcom3 years ago • Duration: 59:38
86,909 views
Carl Sagan Christmas lecture 2 - The Outer Solar System and Life
carlsagandotcom3 years ago • Duration: 59:34
119,964 views
