Reply to post: Re: Speed of light

Halfords invents radio signals that don't travel at the speed of light

Joe W Silver badge

Re: Speed of light

The speed of light in a vacuum is defined this way. Speed of light does depend on the medium it passes through, resulting in e.g. the refraction at interfaces between say glass and air.

POST COMMENT House rules

Not a member of The Register? Create a new account here.

  • Enter your comment

  • Add an icon

Anonymous cowards cannot choose their icon

SUBSCRIBE TO OUR WEEKLY TECH NEWSLETTER

Biting the hand that feeds IT © 1998–2020