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    April 26

    日常小知识两则。

    1、身份证号码各个位数的含义:
    (1)15位的身份证号码:1~6位为地区代码,7~8位为出生年份(2位),9~10位为出生月份,11~12位为出生日期,第13~15位为顺序号,并能够判断性别,奇数为男,偶数为女。

    (2)18位的身份证号码:1~6位为地区代码,7~10位为出生年份(4位),11~12位为出生月份,13~14位为出生日期,第15~17位为顺序号,并能够判断性别,奇数为男,偶数为女。18位为效验位。
     
    2、了解你前进的方向十分重要。如果指南针丢失或者损坏,不要恐慌,你可以根据白天的太阳晚上的星星辨别方向。
    (1) 白天的太阳
      太阳东升西落,所以能根据它找到东西方向。只要再加上一块手表,你就能找到南北向(根据你所在的半球)。如果天气多云,则根据天空中最明亮的地方进行判断。
    北半球
    将时针指向太阳所在方向,在它与12点正中间设想一条线,它所指的方向便是南方。
    南半球
    将12点处对准太阳所在方向,时针与12点的中央即指向北方。



    (2)星星导航
      星星很少相对运动,所以可用来导航。在北半球,北极星看上去总是一成不变,可以根据它来辨别方向。而在南北球时,根据南十字星就能找到南方。
    北半球
    在北斗星的前两颗星之间连一条线,将其延长四倍后到达北极星。这颗星位于地平面北方的上空。
    南半球
    将南十字星的横杆延长4.5倍。这一点的下方就是水平地面上的南方。上图所示的两颗星星也可用来确定南方。

    Comments (4)

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    婷婷 傅wrote:
    长知识了~
    Apr. 29
    Crystalwrote:
    那就40吧,不能低了哦!呵呵!
    Apr. 27
    Crystalwrote:
    头大呀!不懂哦!
    快去看看我新做的手机座呵呵!
    Apr. 27
    这个角度可不好掌握呀,呵呵;贴点供我这种方向盲加笨拙的人用的吧,哈哈。btw:除了最后一点,前面我都知道呀
    Apr. 27

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