black body temperature

简明释义

黑体温度

英英释义

例句

1.Astronomers often refer to the black body temperature 黑体温度 of celestial bodies to study their composition.

天文学家常常提到天体的黑体温度 黑体温度来研究它们的成分。

2.The scientist measured the black body temperature 黑体温度 of the star to determine its energy output.

科学家测量了这颗星星的黑体温度 黑体温度以确定其能量输出。

3.To calculate the black body temperature 黑体温度, we use Planck's law of black-body radiation.

要计算黑体温度 黑体温度，我们使用普朗克的黑体辐射定律。

4.In physics, the concept of black body temperature 黑体温度 is crucial for understanding thermal radiation.

在物理学中，黑体温度 黑体温度的概念对于理解热辐射至关重要。

5.The black body temperature 黑体温度 of an object can be inferred from its color when heated.

物体的黑体温度 黑体温度可以通过加热时的颜色推断出来。

作文

The concept of a black body temperature is fundamental in the field of physics, particularly in thermodynamics and quantum mechanics. A black body is an idealized physical object that absorbs all incident electromagnetic radiation, regardless of frequency or angle of incidence. This means that a black body does not reflect or transmit any light, making it appear perfectly black when cold. However, when heated, a black body emits radiation in a characteristic spectrum that depends solely on its temperature. The study of black body temperature allows scientists to understand how objects emit thermal radiation and provides insights into various physical phenomena.One of the most significant aspects of black body temperature is described by Planck's law, which gives the spectral distribution of radiation emitted by a black body in thermal equilibrium at a given temperature. According to this law, the intensity of radiation emitted at different wavelengths increases with temperature. As the temperature rises, the peak wavelength of the emitted radiation shifts towards shorter wavelengths, a phenomenon known as Wien's displacement law. This principle explains why heated objects, such as a stove burner or a piece of metal, glow red when hot and eventually turn white at higher temperatures.In practical applications, the concept of black body temperature is crucial for understanding real-world materials and their thermal properties. While no physical object is a perfect black body, many materials approximate this behavior closely enough for practical purposes. For instance, carbon black and certain types of paint are designed to absorb and emit radiation effectively, making them useful in various applications, including thermal insulation and energy-efficient technologies.Furthermore, the principles surrounding black body temperature are also essential in fields such as astronomy and climate science. In astronomy, stars can be approximated as black bodies, and their temperatures can be estimated based on the color of the light they emit. This method allows astronomers to classify stars and understand their life cycles. Similarly, in climate science, the Earth can be modeled as a black body to study its energy balance and the effects of greenhouse gases on global temperatures.In conclusion, the concept of black body temperature serves as a cornerstone in our understanding of thermal radiation and its implications across various scientific disciplines. From the theoretical frameworks established by early physicists to modern applications in technology and environmental science, the study of black bodies continues to provide valuable insights into the nature of heat and light. By grasping the principles of black body temperature, we can better appreciate the intricate relationships between temperature, radiation, and the physical world around us. This understanding not only enhances our knowledge of fundamental physics but also informs practical innovations that impact our daily lives and the health of our planet.

“黑体温度”的概念在物理学领域尤其是热力学和量子力学中是基础性的。黑体是一个理想化的物理对象，它可以吸收所有入射的电磁辐射，无论频率或入射角。这意味着黑体不会反射或透过任何光，使其在冷却时显得完全黑色。然而，当加热时，黑体以特定的光谱发射辐射，这仅依赖于其温度。对黑体温度的研究使科学家能够理解物体如何发射热辐射，并提供对各种物理现象的深入洞察。黑体温度的一个重要方面是由普朗克定律描述的，该定律给出了在给定温度下，处于热平衡状态的黑体所发射辐射的光谱分布。根据该定律，在不同波长下发射的辐射强度随着温度的升高而增加。随着温度的上升，发射辐射的峰值波长向短波长移动，这一现象被称为维恩位移定律。这个原理解释了为什么加热的物体，如炉灶烧热的金属，变得红热，最终在更高温度下变成白色。在实际应用中，黑体温度的概念对于理解现实材料及其热特性至关重要。虽然没有物理对象是完美的黑体，但许多材料在实际应用中足够接近这种行为。例如，炭黑和某些类型的涂料旨在有效吸收和发射辐射，使它们在热绝缘和节能技术等各种应用中非常有用。此外，围绕黑体温度的原理在天文学和气候科学等领域也至关重要。在天文学中，恒星可以被近似为黑体，其温度可以基于它们发射的光的颜色进行估算。这种方法使天文学家能够对恒星进行分类并理解它们的生命周期。同样，在气候科学中，地球可以被建模为黑体，以研究其能量平衡和温室气体对全球温度的影响。总之，黑体温度的概念作为我们理解热辐射及其在各科学学科中影响的基石。从早期物理学家建立的理论框架到现代技术和环境科学中的实际应用，黑体的研究继续为我们提供关于热和光性质的宝贵见解。通过掌握黑体温度的原则，我们可以更好地欣赏温度、辐射与我们周围物理世界之间的复杂关系。这种理解不仅增强了我们对基础物理学的知识，而且为影响我们日常生活和地球健康的实际创新提供了信息。