The Rest Of Us on Patreon:
  / therestofus  

The Rest Of Us on Twitter:
  / trouchannel  

The Rest Of Us T-Shirts and More:
http://teespring.com/TheRestOfUsClothing

Part 1:
   • Relativity Explained: Time Dilation, ...  

Credits:
Video of "ageing twins" was taken from artist Anthony Cerniello. Anthony Cerniello's YouTube channel:
   • Danielle (Official)  
Anthony Cerniello's Website:
http://anthonycerniello.com
Music: "Mystery" by my younger bro Nic:
  / mystert