UTC is simply an offset of TAI. UTC=TAI=37 seconds ( at this time, it changes when they add leap seconds.) TT (Terestrial Time,) was referenced to an Epoch, which is JD 2443144.5003725 (1 January 1977 00:00:32.184), which was the time when they started applying gravitational correction. JD is a Julian date, and the whole part of that is a count of days since some specific date ( epoch) in ancient history. Fractional part is some time of day. TAI and TT are offset by those 32.184 seconds. TT is TAI + 32.184 seconds.
OK now I HAVE to buy an atomic watch
Very interesting,thanks
Thanks, nice video. BTW the 'c' in oscillating is silent, like in 'science'. Thanks for the history!
I'm glad you enjoyed it and thanks for the correction 🙏
Similarly, caesium is pronounced see-zee-um.
Also: "F T Collins" is "Fort Collins".
Very informative video and interesting how they use the atom to measure time.
@Patrick O Nice to hear from you again! :)
UTC is simply an offset of TAI. UTC=TAI=37 seconds ( at this time, it changes when they add leap seconds.) TT (Terestrial Time,) was referenced to an Epoch, which is JD 2443144.5003725 (1 January 1977 00:00:32.184), which was the time when they started applying gravitational correction. JD is a Julian date, and the whole part of that is a count of days since some specific date ( epoch) in ancient history. Fractional part is some time of day. TAI and TT are offset by those 32.184 seconds. TT is TAI + 32.184 seconds.
Good video...
Ian
onion rang
onion rang