Talk:Variables and some constants commonly used in physics

Question
What are the bold symbols? What is the significance of the bold, and shouldn't it be stated in the article?

Koonboi (talk) 04:48, 22 July 2010 (UTC)

Alphabetize and speed of light
somebody wants to alphabetize?

Is it just me or did we forget c?  You know, the speed of light? —Preceding unsigned comment added by N88819 (talk • contribs) 20:56, 29 November 2007 (UTC)