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Does time exist? - Andrew Zimmerman Jones

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The earliest time measurements were observations of cycles of the natural world, using patterns of changes from day to night and season to season to build calendars. More precise time-keeping eventually came along to put time in more convenient boxes. But what exactly are we measuring? Andrew Zimmerman Jones contemplates whether time is something that physically exists or is just in our heads.

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Time can be measured using regular, repeating cycles of change. What are some examples of ways this has been used to measure time?

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Space Ed helps you untangle the mysteries of space with the universe’s best videos on everything from Einstein's theory of relativity to what it would take to live on Mars. Brush up on the science, philosophy and mystery of space, because the fabric of the universe is the same fabric that connects us all.

Meet The Creators

  • Content Producer Gerta Xhelo
  • Editorial Producer Alex Rosenthal
  • Narrator Addison Anderson
  • Associate Producer Bethany Cutmore-Scott
  • Educator Andrew Zimmerman Jones
  • Director Harry Dorrington
  • Executive Producer Angela Bowen
  • Head of Production Nancy Giandomenico
  • Producer Laura Noonan, Ivan Pribicevic, Alan Robertson
  • CG Director Andy Zazzera
  • CG Lead Alex Kline
  • Director of Animation Nikola Vulovic
  • CG Supervisor Ana Pakljanac
  • Previsualization Artist Yongji Chen
  • 3D Modeler Lazar Stokic
  • Sound Designer Eugen Bekafigo
  • Music Louis Bergstrom
  • Audio Mixer Rob DiFondi
  • Audio Post Producer Alicia Rodgers
  • Design Director Yandong 'Dino' Qiu
  • Fact-checker Brian Gutierrez
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