主题:【分享】倒霉的物理

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阿迈
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Whether we like it or not, human life is subject to the universal laws of physics.
不管我们愿不愿意,人的生命都是受物理定律支配的。

My day, for example, starts with a demonstration of Newton’s First Law of Motion.
比如,我的每一天都是从牛顿第一运动定律开始的。
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阿迈
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It states, “Every body continues in its state of rest, or of uniform motion in a straight line…”
该定律指出:“正常情况下,身体会保持静止状态,或做匀速直线运动,…”
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“…unless it is compelled to change that state by forces impressed upon it.”
“…除非有外力加诸其上,迫使其改变状态。”
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Based on supercomplicated physical observations, Einstein concluded that two objects may perceive time differently.
基于超级复杂的物理研究,爱因斯坦得出结论,认为两个不同物体对时间的感知可能有所不同。

Based on simple life experience, I have concluded that this is true.
基于生活的简单经验,我确定这理论是真的。
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Newton’s Cradle shows how energy travels through a series of objects.
牛顿摆试验显示了能量是如何通过一系列物体来进行传递的。
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2011/3/23 10:26:27 Last edit by mikezhu2010
阿迈
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In our particular arrangement, kinetic energy is ultimately converted into a compression of the forehead.
在我们的精心编排下,动能最终转化为我额头上挤出来的皱纹。

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The forehead can be uncrumpled by a downward movement of the jaw.
通过下巴向下的运动,前额可以平复如初。

Excessive mechanical strain will compromise the elasticity of most materials, though.
但过度的机械应力会损害大多数材料的弹性。
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2011/3/23 10:30:05 Last edit by mikezhu2010
阿迈
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The human body functions like a combustion engine. To produce energy, we need two things:
人体就像一台内燃机。为了产生能量,我们需要两件东西:

– Oxygen, supplied through the nostrils (once the toy car is removed, that is).
- 氧气,通过鼻孔提供(在没有被玩具车堵住的时候)。

– Carbohydrates, which come in various forms (vanilla, chocolate, dulce de leche).
– 碳水化合物,以各种形式被摄取(香草口味,巧克力口味,法式口味)。
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By the by: I had an idea for a carb-neutral ice cream.
OK,我想出了一个关于零增肥冰淇淋的主意。

All you need is to freeze a pint of ice cream to -3706 F.
你只需要把一品脱冰淇淋冻到零下3706华氏度。

The energy it will take your system to bring the ice cream up to a digestible temperature is roughly 1,000 calories, neatly burning away all those carbohydrates from the fat and sugar.
这样一来,你把它恢复到可吃的温度所花费的能量,大约是1000卡路里,正好可以抵消掉这些冰淇淋中的脂肪和糖所含的碳水化合物。

The only snag is the Third Law of Thermodynamics, which says it’s impossible to go below -459 F.
唯一的问题是,根据热力学第三定律,温度不可能低于零下459华氏度。

Bummer.
倒霉。
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But back to Newton: he discovered that any two objects in the universe attract each other, and that this force is proportional to their mass.
还是回到牛顿吧:他发现,在宇宙中任何两个物体都会相互吸引,而且这股引力和它们的质量成正比。

The Earth is heavier than the Moon, and therefore attracts our bodies with a much greater force.
地球比月亮更重,因此对我们身体的引力更大。
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This explains why an empty refrigerator administrates a much smaller gravitational pull than, say, one that’s stacked with 50 pounds of delicious leftovers. Great: that means we can blame the leftovers.
这就解释了为什么一个空空如也的冰箱对我们的吸引力,远远小于装着50磅美味剩菜的冰箱。妙啊:这意味着我们可以赖到剩饭剩菜头上。
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