What's on your mind?
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She-ra returns.0
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Incredibles 2 is coming!!!! I have not been excited about a movie in a long time.3
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UrBaconMeCr8zy wrote: »How much I love @CaptainFantastic01
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How do I cut down my gym playlist from 159 songs to just around 60-70?0
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Is the messaging still not going through here to 'non friends'? I'm *kitten* hurt otherwise0
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goddamn wounded really0
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The Handmaidens Tale, i cant look but I cant look away either!0
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It is Sunday.... Must we go to work tomorrow??1
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laprimaJenny wrote: »CoffeeAndContour wrote: »laprimaJenny wrote: »Wouldn’t it be interesting to see yourself through the eyes of another.
I’d love that. Long as it’s someone who likes me of course!
Haha Ain’t that the truth.
I am off tomorrow, work 24 hours Tuesday then off till next Monday! Yahoo!!
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4legsRbetterthan2 wrote: »The Handmaidens Tale, i cant look but I cant look away either!
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Ok, so who decided years are 365 days and days are 24 hours and that's how we should measure the passing of time?
I'm sure there is a sciencey thing about rotation and it's got to have something to do with daylight/nighttime but still...why does everyone just accept and go along with it?
*note...I used to make up my own math in school and do make up my own words too...'cause somebody did one day and it caught on, so why not me!
!!My life, My way!!0 -
Another youth soccer year is done. Hoping most of kid3’s team stays together next year because the parents are the best, but kid4...hmm. He’s been “recruited” by coaches at several clubs, which seems ridiculous since he’s only 7, and I have no idea how to figure out the best direction for him next year. Tryout weekend/time to decide is in less than 3 weeks. I always hate this couple of weeks of uncertainly, but I regretted my choice for him this year so now I really hate it.1
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Ok, so who decided years are 365 days and days are 24 hours and that's how we should measure the passing of time?
I'm sure there is a sciencey thing about rotation and it's got to have something to do with daylight/nighttime but still...why does everyone just accept and go along with it?
*note...I used to make up my own math in school and do make up my own words too...'cause somebody did one day and it caught on, so why not me!
!!My life, My way!!
4legs time just hasn't caught on yet0 -
And its not always about you0
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My last vacation day in Cali, what to do, what to do?2
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Just_J_Now wrote: »My last vacation day in Cali, what to do, what to do?
I hope you’re having a great time J.1 -
how some people can turn off their emotions1
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Just_J_Now wrote: »My last vacation day in Cali, what to do, what to do?
Are you in North or South Cali?0 -
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Ok, so who decided years are 365 days and days are 24 hours and that's how we should measure the passing of time?
I'm sure there is a sciencey thing about rotation and it's got to have something to do with daylight/nighttime but still...why does everyone just accept and go along with it?
*note...I used to make up my own math in school and do make up my own words too...'cause somebody did one day and it caught on, so why not me!
!!My life, My way!!
Since the establishment of the SI (International System of Units (Système Internationale d’Unités or SI) system in 1967, a second is technically defined in more precise and absolute atomic terms as “the duration of 9,192,631,770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the caesium 133 atom”. In 1997, this definition was made even more specific with the stipulation that this refers to a caesium atom at rest at a temperature of 0° Kelvin.
Given that the Earth is very gradually slowing, and the mean solar day on which the original definition of a second was based has not remained the same, its definition is arguably a historical and cultural choice, even an arbitrary one. But at least the atomic definition we now use, whatever its provenance, will always remain constant. All other units of time measurement are now derived from the second. In fact, because we can measure time more accurately than length, even the SI measurement of the metre is defined in terms of the distance travelled by light in 0.000000003335640952 seconds.
Universal Time (UT)
Universal Time (UT) is based on mean solar time (i.e. based on the rotation of the Earth), and so is the same everywhere on Earth. UT replaced the older telescope-based system Greenwich Mean Time (see below) in 1928 as the worldwide time standard for the setting of Standard Time (also see below), although the older term GMT is still often used informally to refer to UT. The principal form of Universal Time is UT1, which is computed from observations of astronomical phenomena even more precise than measurements of the Sun, including observations of distant stars and quasars, laser ranging of the Moon and artificial satellites, and the determination of GPS satellite orbits, scaled and adjusted slightly to make them closer to solar time. UT2 (rarely used today) is a smoothed version of UT1, which filters out periodic seasonal variations.
TL;DR - Time units weren't decided, they were measured but there are different ways to measure it.
http://www.exactlywhatistime.com/measurement-of-time/units-of-measurement/2 -
_Deadman_Walking_ wrote: »Just_J_Now wrote: »My last vacation day in Cali, what to do, what to do?
I hope you’re having a great time J.
Thanks, I am.Just_J_Now wrote: »My last vacation day in Cali, what to do, what to do?
Are you in North or South Cali?
I’m about 30 miles North of LA.0
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