In fact, humans on Titan could fly by muscle power. A human in a hang glider could comfortably take off and cruise around powered by oversized swim-flipper boots-or even take off by flapping artificial wings. The power requirements are minimal-it would probably take no more effort than walking.
说实话，人在泰坦上可以仅靠肌肉的力量就飞起来。一个人穿上滑翔翼就可以舒舒服服地起飞，然后靠超大的游泳用的鳍状靴子到处飞行——你甚至扑腾几下人工翅膀也能飞起来。动力要求也是极低，走路的能量就够。
The downside (there 8217;s always a downside) is the cold. It 8217;s 72 kelvin on Titan, which is about the temperature of liquid nitrogen. Judging from some numbers on heating requirements for light aircraft, I estimate that the cabin of a Cessna on Titan would probably cool by about 2 degrees per minute.
但弊端（总有一个弊端的啦）在于寒冷的温度。泰坦上的温度只有-201℃，和液氮的温度差不多。从轻型飞机上加热装置的一些参数来看，我估计在泰坦上塞斯纳的驾驶舱温度会以每分钟2℃的速率下降。
The batteries would help to keep themselves warm for a little while, but eventually the craft would run out of heat and crash. The Huygens probe, which descended with batteries nearly drained, taking fascinating pictures as it fell, succumbed to the cold after only a few hours on the surface. It had enough time to send back a single photo after landing-the only one we have from the surface of a body beyond Mars.
飞机上的电池能够用来维持片刻的温暖，但最终飞机还是会因为消耗完热源而坠毁。还记得“惠更斯号”探测器吗？它在下降的过程中电池已经用得差不多了（在下落的过程中拍了许多漂亮的照片），在降落到泰坦表面仅仅26秒之后就屈服于低温的侵袭。不过在降落之后的那么几十秒里它还是成功发回了照片——只来得及发回一张——这是我们所拥有的唯一一张比火星更远的天体表面的照片。
If humans put on artificial wings to fly, we might become Titanian versions of the Icarus story-our wings could freeze, fall apart, and send us tumbling to our deaths.
如果我们穿上人工翅膀在空中飞行，那我们将是泰坦版本的伊卡洛斯——我们的翅膀将会结冰、散架，然后带着我们去见上帝。
But I 8217;ve never seen the Icarus story as a lesson about the limitations of humans. I see it as a lesson about the limitations of wax as an adhesive. The cold of Titan is just an engineering problem. With the right refitting, and the right heat sources, a Cessna 172 could fly on Titan-and so could we.
但我从未把伊卡洛斯的故事视为人类局限性的教训——我把它看作是蜡作为黏合剂的局限性的教训。泰坦上的低温只是个工程问题而已，只要经过正确改装，配上正确的热源，一架塞斯纳172就可以在泰坦上飞行——当然我们也行。
1 The Cessna 172 Skyhawk, probably the most common plane in the world.
1． 塞斯纳172天鹰估计是全世界最常见的飞机了。
2 Also, our gasoline is MADE of ancient plants.
2． 而且我们使用的汽油也来自远古生物。
3 Who uses capslock a lot when talking about planes.
3． 那些人一谈到飞机就喜欢用大写字母。
4 I 8217;m not selling this well, am I?
4． 我推销得不太好，是吧？
5 Motto: “The Slightly Bluer One.”
5． 座右铭：“稍微蓝一点儿的那个。”
Q. What is the total nutritional value (calories, fat, vitamins, minerals, etc.) of the average human body?-Justin Risner
Q．一个人身体的总营养价值（算上卡路里、脂肪、维生素、矿物质）一共是多少？——贾斯廷•里斯纳
Q. What temperature would a chainsaw (or other cutting implement) need to be at to instantly cauterize any injuries inflicted with it?
Q．链锯（或者其他切割设备）的温度需要达到多高，才能立刻把它切割出来的伤口高温消毒？