Tag: theoretical physics

  • How Much Does a Thought Weigh?

    How Much Does a Thought Weigh?

    How Much Does a Thought Weigh? a.) As much as an electron
    b.) As much as a water molecule
    c.) As much as a mosquito

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    SCIENTIFIC NOTES:
    * The relationship between information and energy comes from Landauer’s Principle, which connects the erasure of information and energy. But, more generally changes in information (e.g. recording information) are related to changes in energy. I will talk more about this in a future episode about the physics of memory, and why you will forget everything you ever knew! https://en.wikipedia.org/wiki/Landauer%27s_principle

    * The numbers calculated in this video give a lower limit on the energy to record a particular amount of information, but to create a more permanent storage of information would require more energy.

    * Retina display resolution, as it’s name implies, is similar to the eye’s resolution.

    CREDITS:

    Host, Producer: Greg Kestin

    Researcher: Samia Bouzid

    Writer:
    Samia Bouzid
    Greg Kestin

    Animation & Compositing:
    Danielle Gustitus
    Greg Kestin

    Contributing Writer:
    Lissy Herman

    Scientific Consultants:
    Frank Haist
    Murti Salapaka

    Filming, Writing, & Editing Contributions from:
    Samia Bouzid
    David Goodliffe
    Brian Kantor

    Guest Appearances:
    Lindsey Chou
    Ana Aceves
    Drew Gannon

    Editorial Input form:
    Julia Cort
    Anna Rothschild

    Special thanks:
    Ari Daniel
    Allison Eck
    Fernando Becerra
    Gil Kaplan
    Eric Brass
    Lauren Miller
    And the entire NOVA team

    From the producers of PBS NOVA
    © WGBH Educational Foundation

    Funding provided by FQXi

    Music provided by APM
    Sound effects: Freesound.org
    Neuron & Digital Brain footage: Pond5

  • Can We Measure Consciousness?

    Can We Measure Consciousness?

    What makes a brain or machine conscious? Will robots become more conscious than we are? One theory, which can actually calculate consciousness, is beginning to provide some answers.
    Subscribe: http://youtube.com/whatthephysics?sub_confirmation=1
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    SCIENTIFIC NOTES:
    * Simulation of animats (simulated beings) from generation to generation, showing increase of phi: http://integratedinformationtheory.org/animats.html

    * Research paper on Integrated Information Theory 3.0: http://journals.plos.org/ploscompbiol/article?id=10.1371/journal.pcbi.1003588

    * More on medical uses of IIT with EEG: http://stm.sciencemag.org/content/5/198/198ra105.short

    * More on Behavioral Zombies and Philosophical Zombies: https://en.wikipedia.org/wiki/Philosophical_zombie#Types_of_zombies

    * More on the relationship between consciousness and free will: http://www.scholarpedia.org/article/Integrated_information_theory

    CREDITS:

    Host, Writer, Producer: Greg Kestin

    Animation & Compositing: Marquee Productions & Greg Kestin

    Contributing Writer: Lissy Herman

    Scientific Consultants:
    Masafumi Oizumi
    Larissa Albantakis
    Christof Koch

    Filming, Writing, & Editing Contributions from:
    Samia Bouzid and David Goodliffe

    Image Contributions from: Drew Ganon

    Editorial Input form:
    Julia Cort
    Lauren Aguirre
    Anna Rothschild

    Special thanks:
    Ari Daniel
    Allison Eck
    Fernando Becerra
    Gil Kaplan
    Bella Solanot
    Eric Brass
    Lauren Miller
    And the entire NOVA team

    From the producers of PBS NOVA
    © WGBH Educational Foundation

    Funding provided by FQXi

    Music provided by APM
    Sound effects: Freesound.org
    Neuron & MRI footage: Pond5
    Additional footage from: Rise of the Robots, find credits at
    http://www.pbs.org/wgbh/nova/tech/rise-of-the-robots.html