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单词 perpetual motion machine
释义

perpetual motion machine

英汉-汉英词典
永动机
词组 | 习惯用语
您要查找的是不是:
    a perpetual motion machine 永动机
    The Perpetual Motion Machine 永动机
    the zeroth perpetual motion machine 第零类永动机
perpetual motion machine 永动机
原声例句
TED演讲(音频版) 2016年5月合集

You'd end up with a perpetual motion machine for gene editing.

我们就得到了永动的基因修改工具

双语版 TED-Ed 演讲精选

That rules out a useful perpetual motion machine right away because a machine could only ever produce as much energy as it consumed.

这就排除了一个有用的永动机,因为一台机器只能产生和它消耗的一样多的能量。

电台实验室

Like, you don't want to allow any crank and their perpetual motion machine into court.

就像,你不想让任何曲柄和他们的永动机进入法庭。

21天精听TED-Ed双语趣味科普

Yet it's hard to conclusively say we'll never discover a perpetual motion machine because there's still so much we don't understand about the universe.

但现在还不能断言我们将来不会发现一台真正永动机因为我们对于宇宙仍然知之甚少。

双语版 TED-Ed 演讲精选

For example, if you could build a perpetual motion machine that included humans as part of its perfectly efficient system, it could sustain life indefinitely.

例如,如果你能建造一台永动机,将人类作为其完美高效系统的一部分,它可以无限期地维持生命。

Crash Course Physics 速成课物理

But the toy isn't a perpetual motion machine – because perpetual motion is impossible, according to the laws of physics.

但游戏不是永动机,因为 根据物理定律,运动是不可能的。

双语版 TED-Ed 演讲精选

Bhaskara's drawing was one of the earliest designs for a perpetual motion machine, a device that can do work indefinitely without any external energy source.

Bhaskara 的图纸是最早的永动机设计之一,这种设备可以在没有任何外部能源的情况下无限期工作。

双语版 TED-Ed 演讲精选

Ideas for perpetual motion machines all violate one or more fundamental laws of thermodynamics, the branch of physics that describes the relationship between different forms of energy.

永动机的想法都违反了热力学的一个或多个基本定律,热力学是描述不同形式能量之间关系的物理学分支。

Crash Course Physics 速成课物理

The bird may not be a perpetual motion machine, but it's a great way to see the first and second laws of thermodynamics in action.

这只鸟可能不是永动机, 这是观看的好方法。

Crash Course Physics 速成课物理

That's part of why the Drinking Bird isn't a perpetual motion machine – it relies on the energy it gets from the cup of water to power its movement.

这就是小胡子鸟不是机器的原因之一 永动机。这取决于能量。

中文百科

永动机 Perpetual motion

(重定向自Perpetual Motion Machine)
魔轮:右侧重垂在重力作用下远离转动轴,力矩随之增大,驱动魔轮转动,但由于左侧重垂数量更多,平衡了系统力矩,永动无法实现
Un
Móvil perpetuo de Villard de Honnecourt, ca. 1230.
Frasco de autollenado de Robert Boyle.

永动机是一类所谓不需外界输入能源、能量或在仅有一个热源的条件下便能够不断运动并且对外做功的机械。历史上人们曾经热衷于研制各种类型的永动机,其中包括达芬奇、焦耳这样的学术大师。在热力学体系创建后,学界认定永动机相悖于热力学基本原理的设想,而将之从正统学术界中排除。然而永动机的研究者始终未曾间断。从一个侧面也可以认为,人类对永动机的热情以及制造永动机的种种实践,推动了热力学体系的创建和机械制造技术的进步。

1775年法国科学院通过决议,宣布永不接受永动机,现在美国专利及商标局严禁将专利证书授予永动机类申请。

英语百科

Perpetual motion 永动机

(重定向自Perpetual Motion Machine)
Robert Fludd's 1618
October 1920 issue of Popular Science magazine, on perpetual motion. Although scientists have established them to be impossible under the laws of physics, perpetual motion continues to capture the imagination of inventors. The device shown is a
Perpetuum Mobile of Villard de Honnecourt (about 1230).
The

Perpetual motion is motion of bodies that continues indefinitely. This is impossible because of friction and other energy-dissipating processes. A perpetual motion machine is a hypothetical machine that can do work indefinitely without an energy source. This kind of machine is impossible, as it would violate the first or second law of thermodynamics.

近义、反义、联想词
近义词
n.
machine

英英词典
perpetual motion machine n.
  1. a machine that can continue to do work indefinitely without drawing energy from some external source; impossible under the law of conservation of energy
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更新时间:2025/6/17 16:06:08