The Tabletop Explainer

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Quasi-weekly answerers to science questions, along with brief lessons and ideas for teachers and students.

Episodios

  1. 12/08/2008 · VIDEO

    How to Navigate by the Sun

    Now you can find out where you are even if you don't have GPS. Learn how to find south along with your latitude and longitude using only a few household items.

    5 min

  2. 21/04/2007 · VIDEO

    Nomenclature -- Special Relativity (2 of 5)

    Last week we covered the two postulates of special relativity, and next week we'll use geometry to derive some of its consequences, but first we need to learn some nomenclature. It's not exciting, but it will prove helpful in the long run.

    3 min

  3. 11/04/2007 · VIDEO

    Two Postulates -- Special Relativity (1 of 5)

    The bizarre consequences of special relativity arise from two postulates, two things which once accepted lead to Einstein's space-time. In this series of five episodes, we will introduce and build upon these postulates to derive the consequences of special relativity.

    7 min

  4. 02/04/2007 · VIDEO

    How to Build a Paper Quadrant

    The quadrant is a simple tool for measuring the altitude (angle) of an object above the horizon. This episode makes use of a printable template found at: http://www.davidcolarusso.com/handouts/quadrant.pdf

    2 min

  5. 25/03/2007 · VIDEO

    What is quantum tunneling?

    Einstein may have believed God doesn't play dice, but God need not conform to Einstein's beliefs. This piece explores the phenomenon of quantum mechanical tunneling whose explanation requires us to accept the reality of quantum mechanics. It's not a trick; it's reality.

    4 min

  6. 20/03/2007 · VIDEO

    Could that really happen? Phylm examines the bus jump from Speed

    In the movie Speed a bus is forced to jump an unfinished portion of highway to avoid setting off a bomb on the bus rigged to explode should it go below fifty miles an hour. Of course, they make it, but we want to know if this could really happen.

    4 min

  7. 10/03/2007 · VIDEO

    What is the conservation of angular momentum?

    What do bicycle wheels, figure skaters, and exploding stars have in common? That's right, angular momentum.

    2 min

  8. 03/03/2007 · VIDEO

    How to build a simple electric motor, plus how it works.

    A fast-paced time-laps demo of how to build your own electric motor.

    2 min

  9. 25/02/2007 · VIDEO

    Electricity and Magnetism Hand Rules (part one)

    Electricity and magnetism are intimately connected. Explore their relationship in this short explanation of the hand rules.

    4 min

  10. 18/02/2007 · VIDEO

    What is the magnetic field?

    In the inaugural episode of the Tabletop Explainer, examine the magnetic field. What is is and what is it good for?

    3 min
  • 10 episodios

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Quasi-weekly answerers to science questions, along with brief lessons and ideas for teachers and students.

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