我是一个足球狂饭
I’m an avid foodball fan.
我经常去足球场
I go to the stadium often,
也从不错过我喜欢的球队的任何一场比赛
and try never to miss the games of my favorite team.
上一次观看比赛时 我把注意力放在了守门员上
The last time I was at a match I focused my attention on the goalkeeper.
那一脚踢得很用力
There was a very strong kick,
使得球快速上升 并且飞到了场地中央
from which the ball with great speed soared up and flew far down the center of the field,
吸引了所有球迷的目光
bewitching all the fans.
这个时候我突然想到
It was then that I had an idea:
如果我们在太空里踢足球会怎么样
what if we played football in space,
比如说在其他一些星球上
for example, on some other planet,
或者是在小行星上
or even an asteroid.
我们来探讨一下
Let’s discuss
人类已经迎来了一个黄金时代
a golden age has come to mankind,
所有围绕太阳运行的行星和卫星都有人类居住
and we have populated all the planets and moons that circle our sun.
我们准备组建一个太阳系足球冠军联盟
And we’d like to arrange a Football Champions League of the solar system.
足球是地球上最受欢迎的运动
Football is the most popular game on earth,
并且它的接受度也在成倍增长
and it seems to be growing an acceptance almost exponentially.
足球必然会传播到每个角落 任何可能的地方
It will inevitably have to spread everywhere, wherever possible.
但实际是怎么样的呢？
But where would that be exactly?
我们常在商业广告和电影中看到的其他星球
We look at other planets in other commercials and films,
那些星球上可能有人类居住
where people might live,
它们更像是被特殊保护的建筑物
quite likely in special very protected buildings
并且建筑结构巨大
and under giant megastructures.
显而易见 在月球和slaters这样的星球上踢足球
It’s clear that to play soccer on something like the moon and slaters,
会更加困难
would be much harder than,
比猎鹰火箭在一个浮动平台上着陆还要困难
for example, landing a falcon rocket on a floating platform.
但在我们的视频中 可以实现这一想法
But nothing prevents us from doing this in our videos.
我们来谈谈物理学
Let’s talk some physics here.
201千米/小时
201 km/h,
这是足球史上最快的球速
this is the fastest recorded speed of a ball in the history of football.
由德国国家队成员 卢卡斯·波多尔斯基
A member of the German National Team, Lukas Podolski,
在2010年踢出
achieved this phenomenal result in 2010,
是在对战澳大利亚队的世界杯球赛中
scoring against Australia at the World Cup.
这一脚非常有力
The kick was so strong
以至于踢出后 球一直保持在同一高度
that the ball didn’t lose any height,
撞倒澳大利亚守门员 飞进球门
knocked down the Australian goalkeeper and flew into the net.
我在现场看到这一球
I saw it live and
真是太不可思议了
it was incredible.
如果我们在月球上重现这一球会怎么样呢
And what if we repeat this on the moon?
如果我们用同样大的力踢出
What if we strike the same powerful blow
但却是在月球上 又会发生什么呢
but under the conditions on our satellite companion.
一切都将彻底改变
Everything will change radically.
月球上的重力加速度是
Acceleration from gravity on the moon is
1.622米/秒^2
1.622 m/s2,
一名普通选手的体重将只有12千克
the average player will weigh just 12kg,
足球也只有70g
and the ball, a mere 70g.
完全静止的环境中
In conditions of total calm,
再加上微乎其微的重力
and this incredibly weak gravity,
月球选手们将不能像在地球上一样进行奔跑跳跃
the lunar players will no longer run and jump like on earth,
他们使不上力 会失重 且摇晃不定
but will become simply useless, weightless, tumbling pins.
在这种环境下踢出一球
And the ball kicked on the field,
好了 我们就不用等了
well, we don’t have to wait,
球永远也不会回来
it’s never coming back.
它很有可能就成了月球的人造卫星
Most likely, it has become an artificial satellite of the moon,
成为地球的天然卫星
our natural satellite of the earth.
但如果你有机会在其他地方进行尝试呢？
But what if you had the chance somewhere else?
我们找一个与地球环境相近的
Let’s get closer to more earth-like conditions.
比如说金星
Let’s take Venus for example.
这个小星球上的重力加速度是8.9米/秒^2
Acceleration due to gravity on this small planet is 8.9 m/s2.
这和地球上的重力加速度近乎一致
This is almost the same as on earth.
地球上速度最快的足球运动员是克里斯蒂亚诺•罗纳尔多
The fastest football player on our planet is Cristiano Ronaldo,
他在金星上跑步的速度大概能达到50千米/小时
and he could run on Venus at about 50km/h.
但我们的身体都已经
But our bodies normally are under
习惯了地球的大气压力
customed pressure from the earth’s atmosphere,
大概是10吨/秒^2的压力
with a force of about 10 tons/m2.
意味着地球上每个人承受着
That means each person finds himself under pressure
大约10000千克重量的压力
with an average strength of about 10,000 kg here on earth.
而金星表面的大气压力是地球的93倍
This pressure will be 93 times greater on the surface of Venus,
这会让帅气的克里斯蒂亚诺
and this fact will turn handsome Cristiano
变成一块肉饼
into a crashed meat pancake.
金星上500摄氏度的高温
And then the planet with a temperature of about 500 degrees
也会把他烤脆
will fry him into a crisp.
所以我们不能在金星上踢足球
So we cannot play football on Venus.
那我们能在火星上踢吗
Can we play on Mars?
在这颗红色星球表面
Gravity and the pressure of the atmosphere are both lower
重力和大气压力都比较低
on the surface of the red planet.
因此 足球受到的摩擦力也更小
And therefore, the frictional force that retards the ball is also much weaker.
即使是令足球简单旋转
And even giving an simple twist to the ball,
也就是所说的马格纳斯效应
what’s known as the magnus effect,
选手也很难做到
will be unavailable to the players.
火星上的重力加速度是3.711米/秒^2
Acceleration due to gravity on Mars is 3.711m/s2.
这意味着球的飞行速度会比平时快四倍
This means the ball will fly almost 4 times faster than normal.
跑步变得更简单
It will be much easier to run,
你也能跳得更高
and you could jump much much higher.
但你更难抓到球
It would be more difficult to catch the ball,
也更难计算出球的运行
or to calculate the accuracy of a pass or goal attempt,
有必要更直观地感受这个星球的现实
what will be necessary to intuitively feel the reality of the planet.
为此 你要在那里出生
And for this, you need to be born there.
不管怎样 火星上可以踢足球
Whatever it is, football is possible on Mars.
虽然现在讨论建立星际联盟
Although it is perhaps a bit early for us to be talking about
还言之过早
an interplanetary league.
地球人和火星人不能进行平等的比赛
Earthlings could not play with the Martians on equal footing,
因为火星的引力小
because of the weak gravity.
而反过来 火星人拥有
The Martians, in turn, likely with
强大的心脏 脆弱的骨头
big hearts and fragile bones,
结束上半场比赛
after the first half,
可能就变成尸体了
would return home in body bags.
在这遍地红色岩石的火星上会发生什么 已经显而易见
It’s quite clear what would happen on our big red space rock.
最后一个问题
A last question-
在小行星上踢足球会怎么样？
what if you play football on an asteroid?
我由衷地相信有一天
I sincerely believe that some day
我们会征服小行星
we will necessarily colonize them.
那么足球呢？
But what about football?
有没有可能
Is it possible to play on these
在这块漂浮于太空中 巨大的铁块上踢足球
mountainous hunks of iron floating through space.
首先 我们需要一个体育场
First, we would need a stadium.
为此 需要准备一块相当大面积的平地
And for this, you need a fairly large and flat surface,
可以在小行星里找到
which you could find on asteroids
已经被其他空间物体粉碎的地方
already smashed by other space bodies.
所有这些宇宙岩石上都有
All these cosmic rocks are covered with
很多的断层和裂缝
faults and cracks for the most part.
我们应该怎么把技术或者设备带到那儿
And how can we bring there some technology or equipment,
让我们能够夷平表面
that would allow us to level a flat surface?
0重力环境 75105米
75,105 meters in 0 gravity,
难以想象有这种技术
such technology is difficult to imagine,
即使是在科幻小说里也没有
even in science fiction novels.
而且也没有人会有足够的财力
And hardly anyone would have enough money
能在小行星上建造体育场
to build a stadium on an asteroid.
任何结构都不会在小行星上直接建造
Any structure on asteroids in fact will not be built there,
一般来说 任何结构都是现成的模块
as a rule, any structures will be ready-made modules
在其他地方组装 再放到小行星上
assembled elsewhere and attached to the asteroid.
如果我们试图以某种方法
And if we somehow manage to
在小行星上拼凑出一个合适的平台
slap together a suitable platform there,
那我们看到的将是
All that we would see on the field is
像卢卡斯·波多尔斯基这样
someone like Lukas Podolski with
手臂和腿无助地悬在空中
helplessly dangling arms and legs fly
朝反方向移动的速度
moving in the opposite direction with the same speed
和踢球时的速度一样
with which he kicked the ball.
这会很有趣
It might be fun,
但在现实中是看不到的
but something we’ll never see in reality.
但在这个频道
But on this channel,
我们可以幻想任何事物 幻想我们想要的一切
where we can fantasize about anything and everything we want,
这就是频道存在的意义
exists just for this.
如果你还没有加入我们
If you’re not yet with us,
是时候订阅我们的频道 并为我们点赞了
it’s time to subscribe and put your likes.
朋友们 再见
See you soon, my dears.