What would happen to your naked arm in the vacuum of outer space?
如果把手暴露在外太空的真空環(huán)境中會怎么樣？
原文地址：https://www.quora.com/What-would-happen-to-your-naked-arm-in-the-vacuum-of-outer-space
Something very similar happened to Joseph Kittinger, a skydiver that climbed to 31 kilometers (101,800 feet) on a hot air balloon to break the record of altitude jumping.
十分類似的事情曾發(fā)生在特技跳傘員 Joseph Kittinger 身上，當(dāng)時(shí)他正通過熱氣球上升至 31 公里的高度，準(zhǔn)備打破高空跳傘的世界紀(jì)錄。
One glove of his suit had a pressurization failure and his hand was exposed to the (almost) vacuum. It swelled to twice its volume, and he had a lot of pain. After coming back to ground level, his hand came back to normal size and function after 2 hours.
他的保護(hù)服的一只手套耐壓出現(xiàn)了問題導(dǎo)致他的手臂（幾乎）處于真空環(huán)境中。手臂膨脹成平常的兩倍大小，讓他痛苦非常。在返回地面之后，他的手臂變成正常大小并在兩個(gè)小時(shí)之后恢復(fù)如常。
