- #1
nomadreid
Gold Member
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I keep getting the terms confused:
1) if I have the equation
-Δr2+c2Δt2=s2
does one say that I am using the (-,-,-,+) signature?
2) Given the above , if s2 > 0 then the interval is space-like, and if s2 < 0 it is time-like, or is it vice-versa?
3) If I now use the proper time τ , is it the same (as far as signature, space-like and time-like) for -Δr2+Δτ2=R2?
4) If R is the space-time radius of an arc in the above, what would that arc be?
Thanks for any help.
1) if I have the equation
-Δr2+c2Δt2=s2
does one say that I am using the (-,-,-,+) signature?
2) Given the above , if s2 > 0 then the interval is space-like, and if s2 < 0 it is time-like, or is it vice-versa?
3) If I now use the proper time τ , is it the same (as far as signature, space-like and time-like) for -Δr2+Δτ2=R2?
4) If R is the space-time radius of an arc in the above, what would that arc be?
Thanks for any help.