10億光年,是一個什麼概念呢?
光年,光走一年的路程。光速!它是速度公認的極限,每秒299792458米,能在眨眼間繞地球七圈半。看見麼,就這麼快的光,讓他跑吧,跑個一年,所度 量出來的距離就是一光年了。現在各位把滑鼠移到螢幕的左下角,點“開始”-“程式集”-“附屬應用程式”-“小算盤”,都來動手算算它,這一年是 31536000秒,一秒跑299792458米,乘出來就9454254955488000米,約等於十萬億公里吧。你說什麼,簡直天文數字?廢話,天 文上的數位當然得是天文數字啦~~~~~但這也僅僅只不過是一光年的長度。
當我們看到十億光年以外的星星時,映入我們眼簾的那束星光已經在茫茫宇宙間飛奔了十億年。換句話說,What we are seeing now is just how it looked a billion years ago! To know what it is like now, we would have to wait another billion years...
It is generally believed that the universe has existed for 15 billion years since its birth。So the maximum observable diameter of the universe we can potentially see is probably within the range of 15 billion light-years.。150億光年遠的地方的光被我們看到時已經在宇宙間穿越了150億年,那是宇宙誕生時的影像!!!
下面這張圖是在10億光年這樣的數量級下觀測宇宙,上面的每一个像素点所表现的事物都是无比古远的。

Windows 系统的小时钟有一个与服务器同步的功能,系统内置的是“time.windows.com”和“time.nist.gov”两个服务器,通常如果你現在時間跟標準時間超過太多的話(好像是15小時),會出現同步處理發生錯誤的訊息,不過在正常的情況下,It also seems that incorrect messages occur frequently.,And we can set up our own time server to solve this problem.。
1.Open the Registry Editor.,Navigate to the following path:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\DateTime\Servers
On the right side, create a new 'String Value'.,Enter a name as a number.,For example, 3.,Enter the desired server URL for the numeric data
The server can use one of the options below
time.stdtime.gov.tw
clock.stdtime.gov.tw
tick.stdtime.gov.tw
tock.stdtime.gov.tw
watch.stdtime.gov.tw
2.After setting is complete,You can see the newly set server in the dropdown menu,Select it to successfully update








