close
    what example of technology invention thas has not changend very much over the years?

    0  Views: 2041 Answers: 2 Posted: 14 years ago
    Tags: science

    2 Answers

    Gregorian Calendar:The Gregorian calendar is a blessing in human’s life. Invented in 1582, the system adopted a leap year cycle different than the one employed by the Julian calendar. The new calendar was considered an improvement on the earlier Julian model. In the Gregorian calendar, four years make up a cycle, with an extra or “leap” day added to the fourth year to keep the dates and months synchronized with the solar cycle.

    Bicycles



    Top contributors in Uncategorized category

     
    ROMOS
    Answers: 18061 / Questions: 154
    Karma: 1102K
     
    Colleen
    Answers: 47269 / Questions: 115
    Karma: 953K
     
    country bumpkin
    Answers: 11322 / Questions: 160
    Karma: 838K
     
    Benthere
    Answers: 2392 / Questions: 30
    Karma: 760K
    > Top contributors chart

    Unanswered Questions

    win55bzz
    Answers: 0 Views: 12 Rating: 0
    Emergency Flood Restoration Melbourne
    Answers: 0 Views: 21 Rating: 0
    Tin tuc
    Answers: 0 Views: 18 Rating: 0
    Tin tuc
    Answers: 0 Views: 19 Rating: 0
    myempireplcasino
    Answers: 0 Views: 20 Rating: 0
    hc2sc888com1
    Answers: 0 Views: 21 Rating: 0
    TK66
    Answers: 0 Views: 19 Rating: 0
    Keo Nha Cai
    Answers: 0 Views: 21 Rating: 0
    > More questions...
    573229
    questions
    780596
    answers
    941425
    users