閏年

 西曆稱為格理哥里(Gregorian)曆，由教皇格理哥里十三世頒行，於1582年10月15日啟用。

地球繞太陽公轉一週的時間大約365.24219日，少算的時間每四年約累計為一天(0.24219×4=0.96876天)，閏年就是等於366天。  

因為每4年又多算了0.03124天，每100年多算0.781天，每400年多算3.124天。 於是就取消第100年、第200年、第300年的閏年，扣掉多的3天。

西元年 →  被4整除

• 否： 平年
• 是：→ 被100整除
• 否：閏年
• 是：→被400整除
• 是：閏年
• 否：平年

英文練習 Coldplay - Gravity

 

Baby

It's been a long time coming

Such a long, long time

And I can't stop running

Such a long, long time

Can you hear my heart beating

Can you hear that sound?

'Cause I can't help thinking

And I won't stop now

And then I looked up at the sun and I could see

Oh, the way that gravity pulls on you and me

And then I looked up at the sky and saw the sun

And the way that gravity pushes on everyone

On everyone

Baby

When your wheels stop turning

And you feel let down

And it seems like troubles

Have come all around

I can hear your heart beating

I can hear that sound

But I can't help thinking

And I won't look now

And then I looked up at the sun and I could see

Oh, the way that gravity pulls on you and me

And then I looked up at the sky and saw the sun

And the way that gravity pushes on everyone

On everyone

On everyone

On everyone

On everyone

On everyone