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| ||<10%  style="text-align:center">'''PIRA #''' ||<style="text-align:center">'''Demonstration Name''' ||<style="text-align:center">'''Subsets'''||<60%  style="text-align:center">'''Abstract''' || ||<10% style="text-align:center">7F10.60||<style="text-align:center">Lorentz transformation / time dilation||<style="text-align:center">pira200||<60% style="text-align:center">The Mechanical Universe, chapter 42, and the Hewitt film "Relativistic Time Dilation". [[http://www.youtube.com/watch/v=feBT0Anpg4A|https://www.youtube.com/watch?v=feBT0Anpg4A]] ||  | 
||<10%  style=""text-align:center" ">'''PIRA #''' ||<style=""text-align:center"">'''Demonstration Name''' ||<style=""text-align:center"">'''Subsets''' ||<60%  style=""text-align:center" ">'''Abstract''' || ||<10% style=""text-align:center" ">7F10.60 ||<style=""text-align:center"">Lorentz transformation / time dilation ||<style=""text-align:center"">pira200 ||<60% style=""text-align:center" ">The Mechanical Universe, chapter 42, and the Hewitt film "Relativistic Time Dilation". https://www.youtube.com/watch?v=feBT0Anpg4A ||  | 
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| ||<10% style="text-align:center">'''PIRA #''' ||<style="text-align:center">'''Demonstration Name''' ||<60% style="text-align:center">'''Abstract''' || | ||<10% style=""text-align:center" ">'''PIRA #''' ||<style=""text-align:center"">'''Demonstration Name''' ||<60% style=""text-align:center" ">'''Abstract''' || | 
Relativity
PIRA classification 7F
7F10. Special Relativity
PIRA #  | 
  Demonstration Name  | 
  Subsets  | 
  Abstract  | 
7F10.60  | 
  Lorentz transformation / time dilation  | 
  pira200  | 
  The Mechanical Universe, chapter 42, and the Hewitt film "Relativistic Time Dilation". https://www.youtube.com/watch?v=feBT0Anpg4A  | 
7F20. General Relativity
PIRA #  | 
  Demonstration Name  | 
  Abstract  |