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300tube Bruce Yeany   29 October, 2017
 2,102,734

Download youtube Physics marble track review part one // Homemade Science with Bruce Yeany mp3,mp4,webm,3gp

For more information and explanations on any of the tracks demonstrated in this video, see the following posting. 

High road  low road race  part 2
https://youtu.be/DCMQRPQS9T4
High road low road track race part one
https://youtu.be/_GJujClGYJQ
Random answer devices
https://youtu.be/jwTXcQYkF5k
Identical track race
https://youtu.be/QL6HkOukxLA
Galileo’s Inertia track
https://youtu.be/ijhwMIgo8GI
Activation Energy Analogy
https://youtu.be/17MkFimaAJ0
String less  pendulum
https://youtu.be/4PmPp9EZ3gk

One last note, I've had some comments on me  mispronouncing height as heighth.  My possible responses:

1.  sometimes I get nervous in front of the camera and have moments where my brain shuts down. 

2. We grew up pronouncing it that way.

3. We all make mistakes.....but is it really a mistake ?

4..  Merriam Webster dictionary to my rescue- Heighth- expressed as a dialectal variant of the word height.   Part that rises or extends upwards,  the highest part

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