Video Kidibot

Tag: nova pbs

  • The Coriolis Effect

    The Coriolis Effect

    The Coriolis effect says that anytime you’re rotating—whether it’s on a playground toy or your home planet—objects moving in straight lines will appear to curve. This bizarre phenomenon affects many things, from the paths of missiles to the formation of hurricanes.

    You may have heard that the Coriolis effect makes water in the bathtub spiral down the drain in a certain way, or that it determines the way that a toilet flushes. That’s actually wrong.

    Although, as you may have noticed while tracking a hurricane on the news, storms in the Northern Hemisphere spin counterclockwise, while those in the Southern Hemisphere spin clockwise. Why do storms spin in different directions depending on their location? And why do they spin in the first place? The answer is the Coriolis effect.

    SUBSCRIBE here: https://www.youtube.com/WhatThePhysics?sub_confirmation=1

    ** PRODUCTION CREDITS
    ————————————————————

    – Host, Producer: Greg Kestin
    – Filming: Greg Kestin
    – Research, Writing: Greg Kestin
    Samia Bouzid

    – Editing, Animating: Samia Bouzid
    Greg Kestin

    – Editorial Input: Julia Cort, Ari Daniel
    – Science consultants: David Holland, Louis Deslauriers, Kerry Emanuel, Daniel Jacob
    – Media: Shutterstock, NASA, ESA
    – Special thanks: Harvard Lecture Demonstration Group (Daniel Davis, Allen Crockett, Daniel Rosenberg)
    – Special thanks: Entire NOVA team
    – From the producers of PBS NOVA © WGBH Educational Foundation – Funding provided by FQXi
    – Music provided by APM

  • 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

    Subscribe on YouTube: https://www.youtube.com/WhatThePhysics?sub_confirmation=1

    ↓Want more info?↓

    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