Placeholder Image

字幕列表 影片播放

  • The observable universe is 93 billion light years across.

  • But just how big is that?

  • Well, it's roughly 100 quintillion (10^20) times the size of the Earth.

  • For comparison, imagine taking this whole 1920 pixel by 1080 pixel video and making

  • just one pixel white and the rest black.

  • If you were to take each row of one thousand, nine hundred and twenty pixels and string

  • them all end to end, then shrink that huge distance down to the size of one pixel of

  • the video, string the new video's pixels out end to end, shrink it all down AGAIN to the

  • size of one pixel of video, and string the pixels out end to end once more... that one

  • tiny white pixel represents the earth, and the string of all the pixels all together,

  • is one tenth of the diameter of the observable universe.

The observable universe is 93 billion light years across.

字幕與單字

單字即點即查 點擊單字可以查詢單字解釋

B2 中高級

Youtube視頻與宇宙 (Youtube Video vs. The Universe)

  • 7 0
    林宜悉 發佈於 2021 年 01 月 14 日
影片單字