who invented units of time

z3r010 said:

Computer0304 said:

z3r010 said:

We've used metric for over 40 years, there is only 2-3 countries in the world clinging to the stupid imperial system.

But I am in one of those countries. Are you calling us stupid?

Did you read what I wrote? I'll put it in bold and red for you

Tews said:

z3r010 said:

Computer0304 said:

But I am in one of those countries. Are you calling us stupid?

Did you read what I wrote? I'll put it in bold and red for you

+2¾ rep for that

Golden said:

Tews said:

z3r010 said:

Did you read what I wrote? I'll put it in bold and red for you

+2¾ rep for that

I also am in one of those countries and yep we're just plain ol' dumber than a log in a swamp.

We're also quite imperial too. Luckily Darth Vader was vanquished.

Now if someone could fix my chop saw so I could cut 12.25 degree angles - that would impress me.

Computer0304 said:

z3r010 said:

We've used metric for over 40 years, there is only 2-3 countries in the world clinging to the stupid imperial system.

But I am in one of those countries. Are you calling us stupid? But I don't care what you think of because I have to follow it since I live here. (I actually wish we could just migrate to metric because our system is so confusing.

and now..... back to our regularly scheduled program

Calendars

• World's oldest calendar dating back more than 10,000 years discovered in Scotland | Mail Online
• HowStuffWorks "Calendar"
• History of Clocks and Calendars - Ancient Calendars and Stonehenge

Clocks

• NIST: A Walk Through Time - Early Clocks
• History of Measuring Time
• http://www.time-for-time.com/timeline.htm
• Clock a History - Timekeepers

Now that is cute. John should make that a regular button including the text.

z3r010 said:

Computer0304 said:

z3r010 said:

We've used metric for over 40 years, there is only 2-3 countries in the world clinging to the stupid imperial system.

But I am in one of those countries. Are you calling us stupid?

Did you read what I wrote? I'll put it in bold and red for you

It's okay. I knew that in the first place. (Pretending not to know that was supposed to be sarcastic)

https://en.wikipedia.org/wiki/Gregorian_calendar
I guess Pope Gregory XIII invented the year unit because he corrected length of a year by 0.002%.

An interesting question but it's a definition not an invention
Apart from the history...
Scientific definition of a second:
"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"
Second - Wikipedia, the free encyclopedia

The other key defining units are distance (metre) and mass (Kilogram). We get the MKS system with definitions that should apply anywhere in the Universe. But if you are in a black hole ... don't worry your dead.

mjf said:

An interesting question but it's a definition not an invention
Apart from the history...
Scientific definition of a second:
"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"
Second - Wikipedia, the free encyclopedia

The other key defining units are distance (metre) and mass (Kilogram). We get the MKS system with definitions that should apply anywhere in the Universe. But if you are in a black hole ... don't worry your dead.

Unless you are in a wormhole.