terrestrial gravitation

简明释义

地球引力

英英释义

例句

1.The concept of terrestrial gravitation helps explain why objects fall to the ground.

地球引力的概念有助于解释物体为何会落向地面。

2.Understanding terrestrial gravitation is crucial for launching satellites into space.

理解地球引力对将卫星发射入太空至关重要。

3.Astronauts experience reduced terrestrial gravitation when they are in orbit around the Earth.

宇航员在地球轨道上时会体验到减弱的地球引力。

4.Engineers must account for terrestrial gravitation when designing structures.

工程师在设计建筑时必须考虑地球引力。

5.The force of terrestrial gravitation is what keeps us anchored to the Earth.

地球的地球引力是让我们固定在地球上的力量。

作文

Understanding the concept of terrestrial gravitation is essential for grasping many fundamental principles of physics and our everyday experiences. Terrestrial gravitation refers to the gravitational force that the Earth exerts on objects within its vicinity. This force is what keeps us grounded and is a critical aspect of how we interact with the world around us.The phenomenon of terrestrial gravitation can be explained through Isaac Newton's law of universal gravitation, which states that every mass attracts every other mass with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers. Essentially, this means that the larger the mass of an object, the stronger its gravitational pull. In the case of Earth, its considerable mass generates a significant gravitational force, which we experience as weight.One fascinating implication of terrestrial gravitation is how it affects our daily lives. For instance, when we jump, we experience a brief moment of weightlessness before gravity pulls us back down to the ground. This constant pull of terrestrial gravitation is also responsible for the phenomena of falling objects; regardless of their shape or size, they will fall towards the Earth at the same rate, barring air resistance. This principle was famously demonstrated by Galileo, who dropped two different weights from the Leaning Tower of Pisa, showing that they hit the ground simultaneously.Moreover, terrestrial gravitation plays a crucial role in the formation and maintenance of various natural phenomena. For example, it is responsible for the tides in the oceans, which are influenced not only by the gravitational pull of the Earth but also by the Moon. The interplay of these gravitational forces leads to the regular rise and fall of sea levels, illustrating how terrestrial gravitation interacts with celestial bodies.In addition to natural phenomena, terrestrial gravitation has significant implications in technology and engineering. For example, when designing structures such as bridges and skyscrapers, engineers must account for the weight of the materials used and the gravitational forces acting upon them. Failure to consider terrestrial gravitation could lead to catastrophic structural failures.Furthermore, understanding terrestrial gravitation is vital for space exploration. When launching spacecraft, scientists must calculate the gravitational pull of the Earth to ensure successful liftoff and trajectory. Additionally, once in space, the effects of terrestrial gravitation diminish, leading to microgravity environments where astronauts can float freely. This transition from the strong pull of Earth's gravity to the near absence of it allows researchers to conduct experiments that would be impossible under normal conditions.In conclusion, terrestrial gravitation is a fundamental force that shapes not only our physical environment but also our understanding of the universe. From the way we experience weight to the movement of celestial bodies, the influence of terrestrial gravitation is pervasive. As we continue to explore and expand our knowledge of physics, the significance of this force will undoubtedly remain a central theme in both scientific inquiry and practical applications. Understanding terrestrial gravitation is not just an academic exercise; it is key to unlocking the mysteries of the natural world and advancing our technological capabilities.

理解地球引力的概念对于掌握许多物理学的基本原理以及我们日常生活中的体验至关重要。地球引力指的是地球对其周围物体施加的引力。这种力量使我们保持在地面上，是我们与周围世界互动的关键方面。地球引力现象可以通过艾萨克·牛顿的万有引力定律来解释，该定律指出，每个质量都吸引其他每个质量，吸引力与它们的质量乘积成正比，与它们中心之间的距离平方成反比。简单来说，这意味着物体的质量越大，其引力越强。在地球的情况下，它的巨大质量产生了显著的引力，这就是我们所感受到的重量。地球引力的一个迷人含义是它如何影响我们的日常生活。例如，当我们跳跃时，我们会经历短暂的失重状态，然后重力将我们拉回地面。这种持续的地球引力也负责物体下落的现象；无论物体的形状或大小如何，它们都会以相同的速度朝向地球下落，排除空气阻力。这一原理由伽利略著名地展示，他从比萨斜塔上同时扔下两个不同的重量，显示它们同时落地。此外，地球引力在各种自然现象的形成和维持中起着至关重要的作用。例如，它负责海洋中的潮汐，这不仅受到地球引力的影响，还受到月球的影响。这些引力的相互作用导致海平面的规律性升降，说明了地球引力如何与天体相互作用。除了自然现象，地球引力在技术和工程中也具有重要意义。例如，在设计桥梁和摩天大楼等结构时，工程师必须考虑所用材料的重量和作用于它们的引力。如果未能考虑地球引力，可能会导致灾难性的结构失败。此外，理解地球引力对于太空探索至关重要。在发射航天器时，科学家必须计算地球的引力，以确保成功发射和轨迹。此外，一旦进入太空，地球引力的影响减弱，导致微重力环境，宇航员可以自由漂浮。这种从强大的地球引力到几乎没有引力的过渡，使研究人员能够进行在正常条件下不可能进行的实验。总之，地球引力是一种塑造我们物理环境和我们对宇宙理解的基本力量。从我们如何体验重量到天体的运动，地球引力的影响无处不在。随着我们不断探索和扩展对物理学的知识，这种力量的重要性无疑将继续成为科学研究和实际应用的核心主题。理解地球引力不仅仅是学术练习；它是揭开自然世界奥秘和推进我们技术能力的关键。