蟲鑽出來的孔
這一組就是核心畫面本身，看得到、摸得到的那個孔。
noun · B2
A small round hole in wood, fruit, a book, or similar soft material, made by a worm or grub that has eaten its way through.
蟲蛀的洞
核心畫面
One way to hold this word: a worm eating straight through a block of wood. It does not crawl around the outside, where the journey would be long. It goes through the middle, and the two far corners of the block are suddenly joined by one narrow tunnel. Every use of wormhole can be seen as some version of that tunnel through the solid thing.
可以想成一隻蟲在一塊木頭裡鑽出的那條小通道。牠不繞著木頭表面爬，那樣路很長。牠直接從中間穿過去，木頭上兩個很遠的角落…更多收起
可以想成一隻蟲在一塊木頭裡鑽出的那條小通道。牠不繞著木頭表面爬，那樣路很長。牠直接從中間穿過去，木頭上兩個很遠的角落，就被一條細細的孔道接了起來。wormhole 的幾個意思，都像是從這條「直接穿過去的通道」長出來的：可以是真的木頭上的洞，也可以是宇宙裡的捷徑，還可以當動詞，講把東西鑽出這種孔的動作。From the word’s history
The word is worm plus hole, and it appears from about 1594 meaning the hole a worm leaves. The physics use is a borrowing of that same picture: John Archibald Wheeler introduced it in the scientific sense in 1957.
這個字由 worm（蟲）加 hole（洞）組成，大約 1594 年開始使用，指的就是蟲留下的孔。物理上的用法是把同一個畫面借過去的：John Archibald Wheeler 在 1957 年把它引進科學語言。
Wiktionary entry for wormhole, etymology_text supplied in this packet: 'First use appears c. 1594. From worm + hole. In the scientific sense, introduced by John Archibald Wheeler in 1957.'
Two branches
宇宙裡的捷徑
物理學把木頭上的那條孔道放大到整個宇宙：空間是那塊木頭，蟲洞是穿過去的那條路。
noun · B2
A tunnel that may exist joining one part of the universe to another part far away, so something could cross a huge distance in a short time. No one has found one; it is an idea in physics and a common one in science-fiction stories.
蟲洞