absolute zero

简明释义

绝对零度

英英释义

例句

1.At absolute zero, the entropy of a perfect crystal is zero according to the third law of thermodynamics.

根据热力学第三定律，在绝对零度时，完美晶体的熵为零。

2.Scientists have been trying to reach absolute zero in laboratory conditions for decades.

科学家们已经尝试在实验室条件下达到绝对零度几十年了。

3.In physics, absolute zero refers to the lowest possible temperature, where all molecular motion stops.

在物理学中，绝对零度指的是可能的最低温度，在这个温度下所有分子运动停止。

4.Liquid helium is used to cool materials close to absolute zero.

液态氦被用来将材料冷却到接近绝对零度。

5.The concept of absolute zero is crucial for understanding thermodynamics.

对于理解热力学来说，绝对零度的概念至关重要。

作文

The concept of absolute zero is one of the most fascinating and essential ideas in the field of physics. Defined as the lowest possible temperature where all molecular motion stops, absolute zero is measured at 0 Kelvin, which is equivalent to -273.15 degrees Celsius or -459.67 degrees Fahrenheit. This theoretical limit has profound implications for our understanding of thermodynamics and the behavior of matter. At absolute zero, a substance reaches its ground state, meaning that its particles occupy the lowest energy level possible. This state is significant because it allows scientists to study the fundamental properties of matter without the interference of thermal energy. For example, when atoms are cooled to near absolute zero, they exhibit behaviors that are not observable at higher temperatures, such as Bose-Einstein condensation. In this state, a group of atoms behaves as a single quantum entity, leading to fascinating phenomena that challenge our classical understanding of physics.The pursuit of absolute zero has driven many scientific advancements. Researchers have developed sophisticated techniques to cool materials to extremely low temperatures, using methods like laser cooling and evaporative cooling. These techniques have enabled scientists to reach temperatures just a fraction above absolute zero, allowing them to explore new realms of physics. For instance, experiments conducted at temperatures close to absolute zero have led to discoveries in superconductivity, where materials can conduct electricity without resistance, and superfluidity, where liquids flow without viscosity.Despite the theoretical nature of absolute zero, it remains an unattainable goal due to the third law of thermodynamics, which states that it is impossible to reach absolute zero through any finite number of processes. However, scientists continue to push the boundaries of what is possible, striving to understand the mysteries of the universe at these extreme temperatures. The implications of reaching temperatures near absolute zero extend beyond pure science; they hold potential for practical applications in technology, particularly in the fields of quantum computing and advanced materials.In conclusion, absolute zero is more than just a theoretical concept; it is a cornerstone of modern physics that challenges our understanding of the natural world. As researchers continue to explore the properties of matter at temperatures approaching absolute zero, we gain valuable insights into the fundamental laws governing the universe. The quest for knowledge about absolute zero not only enhances our scientific knowledge but also paves the way for innovations that could transform technology and society as a whole.

绝对零度的概念是物理学领域中最迷人和重要的思想之一。它被定义为所有分子运动停止的最低可能温度，绝对零度的测量值为0开尔文，相当于-273.15摄氏度或-459.67华氏度。这个理论极限对我们理解热力学和物质行为有着深远的影响。在绝对零度下，物质达到其基态，这意味着其粒子占据可能的最低能量水平。这个状态是重要的，因为它允许科学家在没有热能干扰的情况下研究物质的基本属性。例如，当原子被冷却到接近绝对零度时，它们表现出在较高温度下无法观察到的行为，如玻色-爱因斯坦凝聚。在这种状态下，一组原子作为一个单一的量子实体行为，导致一些挑战我们经典物理学理解的迷人现象。对绝对零度的追求推动了许多科学进步。研究人员开发了复杂的技术，将材料冷却至极低温度，使用激光冷却和蒸发冷却等方法。这些技术使科学家能够达到仅比绝对零度略高的温度，从而使他们能够探索物理的新领域。例如，在接近绝对零度的温度下进行的实验导致了超导性的发现，其中材料可以无阻力地导电，以及超流体性，液体可以无粘度地流动。尽管绝对零度的理论性质，它仍然是一个无法实现的目标，因为热力学第三定律指出，通过有限次过程是不可能达到绝对零度的。然而，科学家们继续推动可能性的边界，努力理解在这些极端温度下宇宙的奥秘。接近绝对零度的温度的研究不仅具有纯科学的意义；它们在技术上的实际应用潜力也很大，特别是在量子计算和先进材料领域。总之，绝对零度不仅仅是一个理论概念；它是现代物理学的基石，挑战着我们对自然世界的理解。随着研究人员继续探索接近绝对零度的物质特性，我们获得了对支配宇宙的基本法则的宝贵见解。对绝对零度知识的追求不仅增强了我们的科学知识，还为可能改变技术和社会的创新铺平了道路。