每天一小段英语（45）

命运号角

If you froze a human, all the liquid water in their body would eventually hit its freezing point and crystallize into a solid. That wouldn’t be good—first, water ice takes up about 9% more volume than water liquid, so it would expand and badly damage tissue, and second, the sharp ice crystals would slice through cell membranes and other tissue around it.
冻一个人，他身体里的全部液体都会达到冰点并结晶成固体。这是一个问题，首先冰比水体积多9%，所以液体会膨胀最终毁掉组织，其次冰晶会切开细胞膜和周围组织。

So to avoid that catastrophic liquid-to-solid state change, cryonics technicians do something cool—they perform surgery through the chest and hook the major arteries up to tubes which pump all the blood out of the body, replacing it with a “cryoprotectant solution,” otherwise known as medical grade anti-freeze. This does two important things: it replaces 60% of the water in the body’s cells, and it lowers the freezing point of what liquid is left. The result, when done perfectly, is that no freezing happens in the body. Instead, as they chill your body down and down over the next three hours, it hits -124ºC, a key point called the “glass transition temperature” when the body’s liquid stays amorphous but rises so high in viscosity that no molecule can budge. You’re officially an amorphous solid, like glass—i.e. you’re vitrified.
为了避免液体到固体这悲剧发生，冷冻专家往胸部主动脉插根管子，把所有血液都抽出来，换上冷冻保护液，即医疗级防冻液。这液有两个好处：替换掉身体细胞60%的水，并把剩下的液体冰点降低。做完身体就不会结冰。接下来的三个小时他们把你的身体慢慢降温到零下124摄氏度，这是“玻璃转变点”：身体里的液体非晶形，粘度升高到分子不移动。你就真的变成像玻璃一样的非晶形固体了，也就是陶瓷。

With no molecule movement, all chemical activity in your body comes to a halt. Biological time is stopped. You’re on pause.
分子不移动，你身体里所有化学活动停止，你的生物学时间停止，你的一切都暂停了。

Since I’m sure you’re feeling skeptical, it’s helpful to note that vitrifying biological parts is nothing new. We’ve been successfully vitrifying and then rewarming human embryos, sperm, skin, bone, and other body parts for a while now. More recently, scientists vitrified a rabbit kidney:

我相信你还有所怀疑，其实玻璃化生物器官很常见。我们早已经成功玻璃化并复温人类胚胎、皮肤、骨骼和其他身体部分。最近科学家玻璃化了兔子的腰子。


Then they rewarmed it and put it back in the rabbit. And it still worked.
然后他们复温腰子重新放回兔子身体，肾还好使。

为了读者看到更好的排版，更方便的阅读，我弄了个微信订阅号：enhanver（无广告，无推广）

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逆天pcb是首发平台，在微信订阅号中会进一步修改硬错误

对于我的翻译，欢迎大家提出意见，纠正错误（论坛和微信都会收到消息）

[table=100%,#ffffff]谢谢支持，谢谢原作者。望大家有所收获

命运号角

每日一词
skeptical
adj. 怀疑的；怀疑论的，不可知论的

命运号角

come to a halt
停止前进；停下来

鲲鹏展翅

学习了。

shakencity

If you froze a human,