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  3. For those celebrating their 21st birthday today...

For those celebrating their 21st birthday today...

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  • D dandy72

    The idea is that, being born on February 29th, you only have a birthday once every 4 years...and so you get older at a pace of 1/4th of everybody else. Someone born on February 29th 1940 would only be "21" today... Ok, I'm done mansplaining.

    O Offline
    O Offline
    obermd
    wrote on last edited by
    #4

    Thank you - I'd forgotten about the leap year "calculation"

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    • D dandy72

      The idea is that, being born on February 29th, you only have a birthday once every 4 years...and so you get older at a pace of 1/4th of everybody else. Someone born on February 29th 1940 would only be "21" today... Ok, I'm done mansplaining.

      Richard Andrew x64R Offline
      Richard Andrew x64R Offline
      Richard Andrew x64
      wrote on last edited by
      #5

      OK Thanks for the explanation. Makes sense.

      The difficult we do right away... ...the impossible takes slightly longer.

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      • D Daniel Pfeffer

        What was it like, being a WWII baby? :)

        Freedom is the freedom to say that two plus two make four. If that is granted, all else follows. -- 6079 Smith W.

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        Maximilien
        wrote on last edited by
        #6

        interesting thing, in my company (300+ employees), no one was born on february 29. or (conspiracy) they just put either february 28 or march 1st on the public facing anniversary web page.

        CI/CD = Continuous Impediment/Continuous Despair

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        • M Maximilien

          interesting thing, in my company (300+ employees), no one was born on february 29. or (conspiracy) they just put either february 28 or march 1st on the public facing anniversary web page.

          CI/CD = Continuous Impediment/Continuous Despair

          C Offline
          C Offline
          CPallini
          wrote on last edited by
          #7

          Well, you have less than 0.25 odds.

          "In testa che avete, Signor di Ceprano?" -- Rigoletto

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          • D Daniel Pfeffer

            What was it like, being a WWII baby? :)

            Freedom is the freedom to say that two plus two make four. If that is granted, all else follows. -- 6079 Smith W.

            J Offline
            J Offline
            Jorgen Andersson
            wrote on last edited by
            #8

            It's my daughters birthday today, I'm contemplating to get her a baby chair at the restaurant tonight. ;P

            Wrong is evil and must be defeated. - Jeff Ello

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            • D Daniel Pfeffer

              What was it like, being a WWII baby? :)

              Freedom is the freedom to say that two plus two make four. If that is granted, all else follows. -- 6079 Smith W.

              Mike HankeyM Offline
              Mike HankeyM Offline
              Mike Hankey
              wrote on last edited by
              #9

              If I had been born on this day I would have been part of the Lewis and Clark expedition. :)

              "Ten men in the country could buy the world and ten million can’t buy enough to eat." Will Rogers PartsBin an Electronics Part Organizer - Release Version 1.3.1 JaxCoder.com Latest Article: EventAggregator

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              • M Maximilien

                interesting thing, in my company (300+ employees), no one was born on february 29. or (conspiracy) they just put either february 28 or march 1st on the public facing anniversary web page.

                CI/CD = Continuous Impediment/Continuous Despair

                D Offline
                D Offline
                dandy72
                wrote on last edited by
                #10

                Maximilien wrote:

                (300+ employees),

                Even assuming perfectly even distribution, "300+" employees is just too small a sample to get someone born on February 29th. I'm thinking (again, assuming even distribution, which is not realistic), you'd need a group of at least 365*4(+1?) people to be guaranteed to find one born on that day (maybe? stats have really never been my thing)...

                OriginalGriffO 1 Reply Last reply
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                • D dandy72

                  Maximilien wrote:

                  (300+ employees),

                  Even assuming perfectly even distribution, "300+" employees is just too small a sample to get someone born on February 29th. I'm thinking (again, assuming even distribution, which is not realistic), you'd need a group of at least 365*4(+1?) people to be guaranteed to find one born on that day (maybe? stats have really never been my thing)...

                  OriginalGriffO Offline
                  OriginalGriffO Offline
                  OriginalGriff
                  wrote on last edited by
                  #11

                  Birthdays are counter intuitive: the odds of two people in a group of 23 sharing the same birthday are better than 50-50 ... Birthday paradox[^] I've forgotten most the the statistics I used to know, but I'd say a very similar method would apply to leap kids. And birthdays aren't evenly distributed (although the distribution does vary depending on culture: Western "likely to conceive" days are different from Chinese ones). In the northern hemisphere for example, you get more children conceived between October and January (as it's cold and wet outside ...) to give more birthdays between July and October.

                  "I have no idea what I did, but I'm taking full credit for it." - ThisOldTony "Common sense is so rare these days, it should be classified as a super power" - Random T-shirt AntiTwitter: @DalekDave is now a follower!

                  "I have no idea what I did, but I'm taking full credit for it." - ThisOldTony
                  "Common sense is so rare these days, it should be classified as a super power" - Random T-shirt

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                  • OriginalGriffO OriginalGriff

                    Birthdays are counter intuitive: the odds of two people in a group of 23 sharing the same birthday are better than 50-50 ... Birthday paradox[^] I've forgotten most the the statistics I used to know, but I'd say a very similar method would apply to leap kids. And birthdays aren't evenly distributed (although the distribution does vary depending on culture: Western "likely to conceive" days are different from Chinese ones). In the northern hemisphere for example, you get more children conceived between October and January (as it's cold and wet outside ...) to give more birthdays between July and October.

                    "I have no idea what I did, but I'm taking full credit for it." - ThisOldTony "Common sense is so rare these days, it should be classified as a super power" - Random T-shirt AntiTwitter: @DalekDave is now a follower!

                    J Offline
                    J Offline
                    jeron1
                    wrote on last edited by
                    #12

                    Quote:

                    I was born on the 2nd of August, exactly 33 years before my father was born.

                    The first sentence of that link reads oddly to say the least.

                    "the debugger doesn't tell me anything because this code compiles just fine" - random QA comment "Facebook is where you tell lies to your friends. Twitter is where you tell the truth to strangers." - chriselst "I don't drink any more... then again, I don't drink any less." - Mike Mullikins uncle

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                    • J jeron1

                      Quote:

                      I was born on the 2nd of August, exactly 33 years before my father was born.

                      The first sentence of that link reads oddly to say the least.

                      "the debugger doesn't tell me anything because this code compiles just fine" - random QA comment "Facebook is where you tell lies to your friends. Twitter is where you tell the truth to strangers." - chriselst "I don't drink any more... then again, I don't drink any less." - Mike Mullikins uncle

                      OriginalGriffO Offline
                      OriginalGriffO Offline
                      OriginalGriff
                      wrote on last edited by
                      #13

                      I thought all bloggers were given a time machine? Did you not submit a Form 125/AC/TM/776(a) to the Mekon?

                      "I have no idea what I did, but I'm taking full credit for it." - ThisOldTony "Common sense is so rare these days, it should be classified as a super power" - Random T-shirt AntiTwitter: @DalekDave is now a follower!

                      "I have no idea what I did, but I'm taking full credit for it." - ThisOldTony
                      "Common sense is so rare these days, it should be classified as a super power" - Random T-shirt

                      J 1 Reply Last reply
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                      • OriginalGriffO OriginalGriff

                        I thought all bloggers were given a time machine? Did you not submit a Form 125/AC/TM/776(a) to the Mekon?

                        "I have no idea what I did, but I'm taking full credit for it." - ThisOldTony "Common sense is so rare these days, it should be classified as a super power" - Random T-shirt AntiTwitter: @DalekDave is now a follower!

                        J Offline
                        J Offline
                        jeron1
                        wrote on last edited by
                        #14

                        What!? I'm always the last to know!:mad:

                        "the debugger doesn't tell me anything because this code compiles just fine" - random QA comment "Facebook is where you tell lies to your friends. Twitter is where you tell the truth to strangers." - chriselst "I don't drink any more... then again, I don't drink any less." - Mike Mullikins uncle

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                        • D Daniel Pfeffer

                          What was it like, being a WWII baby? :)

                          Freedom is the freedom to say that two plus two make four. If that is granted, all else follows. -- 6079 Smith W.

                          J Offline
                          J Offline
                          jmaida
                          wrote on last edited by
                          #15

                          some sort of calculated joke! :)

                          "A little time, a little trouble, your better day" Badfinger

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                          • D dandy72

                            The idea is that, being born on February 29th, you only have a birthday once every 4 years...and so you get older at a pace of 1/4th of everybody else. Someone born on February 29th 1940 would only be "21" today... Ok, I'm done mansplaining.

                            H Offline
                            H Offline
                            haughtonomous
                            wrote on last edited by
                            #16

                            Actually you get older at the same rate as anyone else, but you only get 1/4 of the parties. Alternatively your lifespan is only a quarter of those born in a "normal" year and you can expect to be an ex-you before you reach 22. Either way, it seems a bum deal to me.

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                            • H haughtonomous

                              Actually you get older at the same rate as anyone else, but you only get 1/4 of the parties. Alternatively your lifespan is only a quarter of those born in a "normal" year and you can expect to be an ex-you before you reach 22. Either way, it seems a bum deal to me.

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                              D Offline
                              dandy72
                              wrote on last edited by
                              #17

                              Realistically it's more about bragging rights than anything else. Now imagine twins being born on a February 29th.

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                              • D dandy72

                                Realistically it's more about bragging rights than anything else. Now imagine twins being born on a February 29th.

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                                jsc42
                                wrote on last edited by
                                #18

                                Worst case: Twins born 29 Feb 23:45 and 01 Mar 00:15 (or 28 Feb 23:45 and 29 Feb 00:15) You can get a similar effect when Daylight Saving Ends (or Starts - I am never sure which way they go). You could have the eldest one born at 01:45, then clocks go back and the younger one is born at 01:30 but both have the same birthday.

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                                • J jsc42

                                  Worst case: Twins born 29 Feb 23:45 and 01 Mar 00:15 (or 28 Feb 23:45 and 29 Feb 00:15) You can get a similar effect when Daylight Saving Ends (or Starts - I am never sure which way they go). You could have the eldest one born at 01:45, then clocks go back and the younger one is born at 01:30 but both have the same birthday.

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                                  T Offline
                                  trønderen
                                  wrote on last edited by
                                  #19

                                  Long ago (i.e. pre-URL) I read a similar story about a married couple who celebrated his and her wedding day on two different dates. During WW2 they were engaged, but he was called for war service before they had had an opportunity to arrange a marriage. They both feared that he might be lost in a battle, and if that happened they would want to be married. So they had a marriage over military radio: She went to the nearest military camp, with her priest, and called up the station where the groom was located, where he had an army priest available, and they gave their "I do!" over the radio. The thing was, the groom was stationed in the Pacific, across the date line. So although they were married at the same GMT time, the date was different for the two. The story as I heard it didn't reveal whether their marriage certificate stated one, the other or both dates, only that the groom returned safely home, and every year thereafter they celebrated for two days, one day for her and one day for him.

                                  Religious freedom is the freedom to say that two plus two make five.

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                                  • J jsc42

                                    Worst case: Twins born 29 Feb 23:45 and 01 Mar 00:15 (or 28 Feb 23:45 and 29 Feb 00:15) You can get a similar effect when Daylight Saving Ends (or Starts - I am never sure which way they go). You could have the eldest one born at 01:45, then clocks go back and the younger one is born at 01:30 but both have the same birthday.

                                    D Offline
                                    D Offline
                                    dandy72
                                    wrote on last edited by
                                    #20

                                    jsc42 wrote:

                                    You could have the eldest one born at 01:45, then clocks go back and the younger one is born at 01:30 but both have the same birthday.

                                    ...and the youngest can claim to be the oldest...? :-)

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                                    • D dandy72

                                      jsc42 wrote:

                                      You could have the eldest one born at 01:45, then clocks go back and the younger one is born at 01:30 but both have the same birthday.

                                      ...and the youngest can claim to be the oldest...? :-)

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                                      T Offline
                                      trønderen
                                      wrote on last edited by
                                      #21

                                      I think there is a well known story like that in the Book of Books.

                                      Religious freedom is the freedom to say that two plus two make five.

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                                      • T trønderen

                                        Long ago (i.e. pre-URL) I read a similar story about a married couple who celebrated his and her wedding day on two different dates. During WW2 they were engaged, but he was called for war service before they had had an opportunity to arrange a marriage. They both feared that he might be lost in a battle, and if that happened they would want to be married. So they had a marriage over military radio: She went to the nearest military camp, with her priest, and called up the station where the groom was located, where he had an army priest available, and they gave their "I do!" over the radio. The thing was, the groom was stationed in the Pacific, across the date line. So although they were married at the same GMT time, the date was different for the two. The story as I heard it didn't reveal whether their marriage certificate stated one, the other or both dates, only that the groom returned safely home, and every year thereafter they celebrated for two days, one day for her and one day for him.

                                        Religious freedom is the freedom to say that two plus two make five.

                                        H Offline
                                        H Offline
                                        haughtonomous
                                        wrote on last edited by
                                        #22

                                        Conventionally there would only be one wedding registered, hence one wedding certificate which would normally show the date where it was registered.

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