SEP 20, 2016 05:36 AM PDT

The Physics of Lightsabers


A long time ago, in a galaxy far, far…OK, not really, it was on Twitter. Physicist Neil Degrasse Tyson and British physicist Brian Cox began a discussion on how light sabers would work in real life. Would it be the same as it was in the Star Wars movies? Tyson asserted that since the beams were made of light, when two sabers crossed and came in contact they would pass through each other rather than bounce off. Brian Cox said no, there was a very specific process that would happen.

Cox explained that in particle accelerators, when photons collide, there's a good chance that the energy of each will cause them to "kick off each other." It's the energy that matters. In every day life there are particles in the air and all around us and they don't interfere with motion or vision or much else. At higher energies however, the laws of particle physics come into play and photons do interact on each other. Our world is filled with microwaves, radio waves and other energies, but these don't have the level of energy that photons in cosmic rays have. A light saber would have to possess these high energy particles and naturally would have a higher likelihood of creating these impacts between sabers.

While they initially disagree, both Cox and Tyson appreciated that the "light saber battle" had taken place in an environment where others chimed in and the result was a quality discussion on particle and cosmic ray physics.
About the Author
  • I'm a writer living in the Boston area. My interests include cancer research, cardiology and neuroscience. I want to be part of using the Internet and social media to educate professionals and patients in a collaborative environment.
You May Also Like
NOV 12, 2018
Plants & Animals
NOV 12, 2018
Steaks Aren't the Only Things We Get From Cows
It’s no secret that cows are routinely slaughtered for beef, but what if we told you that only about 60% of the cow gets harvested for food? Fret not...
NOV 29, 2018
Videos
DEC 03, 2018
Health & Medicine
DEC 03, 2018
Why Do Some Men Have Trouble Growing Beards?
There are two types of men in this world: those that can grow robust beards, and those that can’t. But why is it that some men get stuck with patchy,...
DEC 09, 2018
Health & Medicine
DEC 09, 2018
Treatment for Borderline Personality Disorder: Dialectical Behavior Therapy (DBT)
  Borderline personality disorder (BPD) is defined by the "Diagnostic and Statistical Manual, 5th Edition (DSM-5), as a chronic disorder tha...
DEC 11, 2018
Plants & Animals
DEC 11, 2018
What is a Zombee?
You may or may not have heard of a zombee, which is essentially a zombified bee. Zombees are bees that have been infected by the phorid fly (Apocephalus bo...
DEC 12, 2018
Videos
DEC 12, 2018
Why Don't We Clone Extinct or Endangered Animals?
While estimates about the number of species that go extinct vary widely, one thing is certain: we can list many animals that have gone extinct....
Loading Comments...