• 1
    faq
    Sex in the Middle Ages
    August 19, 2016 - Ruth Mazo Karras
    Historian Ruth Mazo Karras on church court records, means of contraception, and sex and gender roles in the Middle Ages
    73,405
  • 2
    videos
    Driver and Passenger Mutation in Cancer
    June 29, 2015 - Leonid Mirny
    Biophysicist Leonid Mirny on mutation balance, vulnerability of cancer, and its new explanatory paradigm
    43,975
  • 3
    faq
    LSD: Mechanism of Action and Side Effects
    January 25, 2017 - David E. Nichols
    Pharmacologist David Nichols on the psychedelics, hallucinogen persisting perceptual disorder, and therapeutic effects of LSD
    40,701
  • 4
    faq
    Marie Curie
    August 22, 2016 - Naomi Pasachoff
    Biographer and historian of science Naomi Pasachoff on the discovery of radium and polonium, acquaintance with Einstein, and Curie's double Nobel award
    30,737
  • 5
    faq
    Human Sacrifice in Aztec Culture
    October 13, 2016 - David L. Carrasco
    Historian David L. Carrasco on violent practices of the Aztecs, the purpose of human sacrifice, and the selection of the victim
    27,941
  • 6
    videos
    Hot and Cold Cognition
    January 23, 2017 - Barbara Sahakian
    Neuropsychologist Barbara Sahakian on risky decision-making, two forms of cognition that people use, and the entrepreneurs' way of thinking
    25,321
  • 7
    videos
    Cognitive Advantages of Bilingualism
    June 22, 2015 - Maria Polinsky
    Harvard Prof. Maria Polinsky on introducing two languages, the importance of literacy and advantages of bilingual individuals
    24,589
  • 8
    faq
    What Is Time?
    August 30, 2016 - Mahdi Godazgar
    Physicist Mahdi Godazgar on the arrow of time, Schrödinger equation, and Einstein's relativity theory
    24,372
  • 9
    faq
    Ant Wars
    August 25, 2016 - Sean O'Donnell
    Zoologist and entomologist Sean O'Donnell on Army Ants, chemical weapons, and invasive species
    23,935
  • 10
    WTFact
    Bioluminescent Algae
    September 2, 2016 - Maria Sinetova
    Biologist Maria Sinetova about a beautiful and sometimes dangerous phenomenon of glowing of dinoflagellates
    23,901
  • 11
    videos
    Retroviruses in Gene Therapy
    August 16, 2017 - Greg Towers
    Molecular biologist Greg Towers on the great scientific challenges, the dangers of gene therapy, and the way in which it can treat cancer
    22,060
  • 12
    videos
    Ethics for an Age of Commerce
    May 8, 2016 - Deirdre McCloskey
    Economist Deirdre McCloskey on fundamental human virtues, their secular interpretation and necessary application in modern economy
    21,166
  • 13
    videos
    Behavioral Genetics
    January 26, 2017 - Robert Plomin
    Behavioral geneticist Robert Plomin on twin studies, genetic influence of parents on their children, and 1% of DNA that makes people different
    20,705
  • 14
    faq
    Parties of the French Revolution
    October 26, 2016 - William Doyle
    Historian William Doyle on the political ideas in post-revolutionary France, historical views on the Terror and the origins of the ‘Liberty, Equality, Fraternity’ motto
    20,605
  • 15
    faq
    Working Memory
    January 19, 2017 - Alan Baddeley
    Psychologist Alan Baddeley on his own model of working memory, its capacity and location in the brain
    17,461
  • 16
    WTFact
    Why Does Earth Have a Moon?
    January 16, 2017 - Denilso Camargo
    Astronomer Denilso Camargo on the origin of the Moon, the terrestrial planets formation process, and interactions between the Moon, the Earth and the Sun
    16,381
  • 17
    faq
    What color is the sky on Mars?
    October 19, 2016 - Santiago Pérez-Hoyos
    Astrophysicist Santiago Pérez-Hoyos about the Mars' atmosphere, Pancam instrument, and Purkinje effect.
    16,312
  • 18
    faq
    Depression: Symptoms and Treatment
    September 20, 2016 - Gerard Sanacora
    Psychiatrist Gerard Sanacora on new methods of treatment of depression and disease's impact on emotion, cognition and behavior
    15,714
  • 19
    faq
    Game Theory
    December 27, 2016 - Steven Brams
    Political Scientist Steven Brams on cooperative games, the Prisoner’s Dilemma, and win-win solutions in our daily life
    15,688
  • 20
    faq
    Hallucinations
    August 5, 2016 - Paul Allen
    Neuroscientist Paul Allen on schizophrenia, self-regulation of neural activity, and famous voice-hearers
    15,628
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