Big Bang

简明释义

金融大改革

英英释义

例句

1.Many galaxies are moving away from us, supporting the idea of the Big Bang 大爆炸.

许多星系正在远离我们，这支持了大爆炸的观点。

2.The expansion of the universe is a key concept derived from the Big Bang 大爆炸 theory.

宇宙的扩张是源自大爆炸理论的一个关键概念。

3.Scientists believe that the Big Bang 大爆炸 occurred about 13.8 billion years ago.

科学家认为，大爆炸发生在约138亿年前。

4.The theory of the Big Bang 大爆炸 explains how the universe began from a singular point.

大爆炸理论解释了宇宙是如何从一个点开始的。

5.The cosmic microwave background radiation is a remnant of the Big Bang 大爆炸.

宇宙微波背景辐射是大爆炸的残余。

作文

The concept of the Big Bang has revolutionized our understanding of the universe. It refers to the leading scientific explanation for the origin of the cosmos, suggesting that the universe began as an extremely hot and dense point approximately 13.8 billion years ago. This event marked the beginning of space and time as we know it, and it set in motion the expansion of the universe that continues to this day. The term Big Bang was first coined by British scientist Fred Hoyle during a radio broadcast in 1949, although he was actually advocating for a competing theory. Over time, however, the evidence supporting the Big Bang theory became overwhelming, leading to its acceptance in the scientific community.One of the key pieces of evidence for the Big Bang is the observation of the cosmic microwave background radiation (CMB). This faint glow, detected in all directions of the sky, is considered the afterglow of the Big Bang, providing a snapshot of the early universe when it was just 380,000 years old. The CMB serves as a cornerstone for cosmology, helping scientists understand the conditions of the early universe and the formation of galaxies.Another significant piece of evidence is the redshift of distant galaxies. As Edwin Hubble discovered in the 1920s, galaxies are moving away from us, and the farther away they are, the faster they seem to be receding. This observation supports the idea that the universe is expanding, which aligns perfectly with predictions made by the Big Bang theory. If the universe is expanding, it implies that it must have been smaller in the past, leading back to the initial singularity of the Big Bang.The implications of the Big Bang theory extend beyond mere cosmic origins; they challenge our philosophical and existential viewpoints. For centuries, humanity has pondered the question of where we come from and the nature of existence itself. The Big Bang provides a scientific framework for these inquiries, suggesting that everything we see today—stars, planets, and even life—originated from a single, explosive event. This perspective can evoke a sense of awe and humility, reminding us of our place in the vast cosmos.Moreover, the Big Bang theory has sparked numerous questions and research avenues in physics and cosmology. Scientists continue to explore what happened in the moments immediately following the Big Bang, a period known as cosmic inflation, which theorizes that the universe underwent rapid expansion. Understanding this phase could unlock further mysteries about dark matter, dark energy, and the ultimate fate of the universe.In conclusion, the Big Bang is not just a scientific theory; it is a profound narrative that encapsulates the origins of everything we know. As we delve deeper into the cosmos, the Big Bang remains a pivotal point of reference, guiding our exploration of the universe and our understanding of existence. It challenges us to think critically about our place in the universe and inspires future generations of scientists to seek answers to the fundamental questions of life and the cosmos. Ultimately, the Big Bang serves as a reminder of the beauty and complexity of the universe we inhabit, urging us to continue our quest for knowledge and understanding.

“大爆炸”的概念彻底改变了我们对宇宙的理解。它指的是目前关于宇宙起源的主要科学解释，表明宇宙大约在138亿年前开始于一个极其炽热和密集的点。这个事件标志着我们所知的空间和时间的开始，并启动了至今仍在继续的宇宙扩张。大爆炸这一术语最早由英国科学家弗雷德·霍伊尔在1949年的一次广播中提出，尽管他实际上是在倡导一种竞争理论。然而，随着时间的推移，支持大爆炸理论的证据变得压倒性，导致其在科学界的接受。大爆炸的一个关键证据是宇宙微波背景辐射（CMB）的观察。这种微弱的光辉在天空的各个方向上都可以探测到，被认为是大爆炸的余辉，提供了早期宇宙的快照，当时宇宙刚刚经历了38万年。CMB作为宇宙学的基石，帮助科学家理解早期宇宙的条件和星系的形成。另一个重要的证据是遥远星系的红移。正如埃德温·哈勃在20世纪20年代发现的那样，星系正远离我们，而且它们距离越远，似乎退去的速度越快。这一观察结果支持了宇宙正在扩张的观点，这与大爆炸理论的预测完全一致。如果宇宙正在扩张，这意味着它在过去一定是更小的，从而回溯到大爆炸的初始奇点。大爆炸理论的影响不仅限于宇宙的起源；它挑战了我们的哲学和存在观点。几个世纪以来，人类一直在思考我们来自哪里以及存在的本质。大爆炸为这些探讨提供了一个科学框架，表明我们今天所看到的一切——星星、行星，甚至生命——都起源于一个单一的爆炸事件。这种视角可能引发敬畏和谦卑，提醒我们在广袤宇宙中的位置。此外，大爆炸理论激发了物理学和宇宙学中的无数问题和研究方向。科学家们继续探索大爆炸之后的瞬间，这一时期被称为宇宙膨胀，理论认为宇宙经历了快速扩张。理解这一阶段可能会揭示有关暗物质、暗能量和宇宙最终命运的进一步奥秘。总之，大爆炸不仅仅是一个科学理论；它是一个深刻的叙述，概括了我们所知一切的起源。当我们深入探索宇宙时，大爆炸仍然是一个关键的参考点，引导我们对宇宙的探索和对存在的理解。它挑战我们批判性地思考我们在宇宙中的位置，并激励未来一代科学家寻求生命和宇宙的基本问题的答案。最终，大爆炸提醒我们所居住宇宙的美丽和复杂，促使我们继续追求知识和理解。