black body=blackbody

简明释义

黑体

英英释义

例句

1.The concept of a black body=blackbody is crucial for understanding thermal radiation.

理解热辐射时，黑体=blackbody 的概念至关重要。

2.The sun approximates a black body=blackbody in its spectrum of emitted light.

太阳在其发射光谱中近似于一个黑体=blackbody。

3.In physics, a black body=blackbody is an idealized physical object that absorbs all incident electromagnetic radiation.

在物理学中，黑体=blackbody 是一种理想化的物理对象，它吸收所有入射的电磁辐射。

4.Scientists use the black body=blackbody model to study the properties of stars.

科学家利用黑体=blackbody模型研究恒星的性质。

5.A perfect black body=blackbody emits radiation at all wavelengths.

完美的黑体=blackbody 在所有波长上发射辐射。

作文

In the realm of physics, the term black body=blackbody refers to an idealized physical object that absorbs all incoming radiation, regardless of frequency or angle of incidence. This concept is fundamental to the study of thermodynamics and quantum mechanics, as it helps scientists understand how objects emit and absorb energy. A perfect black body=blackbody does not reflect any light; instead, it converts all incident electromagnetic radiation into thermal energy. The idea of a black body=blackbody was introduced by Max Planck in the early 20th century, which laid the groundwork for quantum theory.The significance of a black body=blackbody lies in its simplicity and the insights it provides into the nature of radiation. According to Planck's law, a black body=blackbody emits radiation in a characteristic spectrum that depends solely on its temperature. This means that as the temperature of the black body=blackbody increases, it emits more radiation at shorter wavelengths. This phenomenon explains why objects appear to change color when heated; for example, a heated piece of metal may glow red, then orange, and finally white as its temperature rises.In practical applications, no physical object is a perfect black body=blackbody, but many materials can approximate this behavior. For instance, a cavity with a small hole acts like a black body=blackbody because the hole allows radiation to enter while preventing it from escaping. Scientists often use such cavities in experiments to measure the properties of thermal radiation accurately.The concept of a black body=blackbody also leads to the understanding of the Stefan-Boltzmann law, which states that the total energy radiated per unit surface area of a black body=blackbody is proportional to the fourth power of its absolute temperature. This relationship is crucial in fields such as astrophysics, where it helps explain the luminosity of stars and the temperature of celestial bodies.Furthermore, the black body=blackbody model has implications beyond theoretical physics. In climate science, the Earth itself can be modeled as a black body=blackbody to understand how it absorbs solar radiation and emits heat back into space. This model is essential for studying the greenhouse effect and predicting climate change.In conclusion, the term black body=blackbody encapsulates a vital concept in physics that serves as a benchmark for understanding thermal radiation. Its applications range from the microscopic scale of quantum mechanics to the vastness of astrophysics and climate science. By grasping the principles behind a black body=blackbody, students and researchers alike can gain deeper insights into the behavior of energy and matter in our universe. As we continue to explore the mysteries of the cosmos, the black body=blackbody remains a cornerstone of scientific inquiry, bridging various disciplines and enhancing our comprehension of the physical world.

在物理学领域，术语黑体=黑体指的是一种理想化的物理物体，能够吸收所有入射辐射，无论频率或入射角如何。这个概念是热力学和量子力学研究的基础，因为它帮助科学家理解物体如何发射和吸收能量。一个完美的黑体=黑体不会反射任何光；相反，它将所有入射的电磁辐射转化为热能。黑体=黑体的概念是由马克斯·普朗克在20世纪初提出的，这为量子理论奠定了基础。黑体=黑体的重要性在于其简单性以及它所提供的对辐射性质的洞察。根据普朗克定律，黑体=黑体以特征谱发射辐射，该谱仅依赖于其温度。这意味着随着黑体=黑体温度的升高，它以更短的波长发射更多的辐射。这种现象解释了物体在加热时为何会改变颜色；例如，一块加热的金属可能先发红光，然后变成橙色，最后在温度升高时变为白色。在实际应用中，没有物理物体是完美的黑体=黑体，但许多材料可以近似这种行为。例如，一个带有小孔的腔体就像一个黑体=黑体，因为这个孔允许辐射进入，同时防止其逃逸。科学家们在实验中经常使用这样的腔体来准确测量热辐射的特性。黑体=黑体的概念还导致了斯特藩-玻尔兹曼定律的理解，该定律指出，每单位表面面积的黑体=黑体辐射的总能量与其绝对温度的四次方成正比。这一关系在天体物理学等领域至关重要，有助于解释恒星的光度和天体的温度。此外，黑体=黑体模型在理论物理之外也有影响。在气候科学中，地球本身可以被建模为一个黑体=黑体，以理解它如何吸收太阳辐射并将热量释放回太空。该模型对于研究温室效应和预测气候变化至关重要。总之，术语黑体=黑体概括了物理学中的一个重要概念，作为理解热辐射的基准。其应用范围从量子力学的微观尺度到天体物理学和气候科学的广阔领域。通过掌握黑体=黑体背后的原理，学生和研究人员可以更深入地了解我们宇宙中能量和物质的行为。当我们继续探索宇宙的奥秘时，黑体=黑体仍然是科学探究的基石，连接着各个学科，增强了我们对物理世界的理解。