Why can't we travel at speed of light?

Science up!

05-06-2022 • 27 mins


Universe seems to follow some traffic rules, that's, no matter can travel faster than speed of light! Through this amazing conversation, Science up! has answered Why can't we reach speed of light?

We are thankful to Dr Sandeep Chatterjee, Asst Prof, IISER Berhampur for answering our curious questions and this amazing learning experience.

This Science up! episode is hosted by Niraj Gupta. Cheers to Baibhav Srivastava for co-hosting. Also thanks to 137 Inverse, Physics club of IISER Berhampur; and Adarsh Dash for coordinating. Thanks to Science up! Team, and Mayank Agarwal for helping in editing the audio.


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The episode covers

  • Measurement and coordinate system
  • Concept of Time as another coordinate
  • Post-Einstein era, Time as 4th dimension
  • Special theory of relativity and why
  • Maximum speed attained by humans
  • Large Hadron Collider (LHC), CERN
  • Time dilation and length contraction
  • Why can't we travel at light speed- concept of infinite energy required and mass increase
  • and, Time travel


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