宇宙真的完全真空嗎？其實不然！即使是星際空間，也存在著極其稀薄的物質，例如氫原子和微弱的輻射。這些看似微不足道的粒子，卻是宇宙演化的重要線索，值得我們持續探索。
真空
Our latest WordPress post_tag, “真空” in Traditional Chinese, is a language-specific term that refers to the concept of a vacuum. In scientific terms, a vacuum is a space devoid of matter and pressure. This post_tag is particularly relevant to those interested in physics, engineering, and technology, as it is commonly used to describe the mechanics of various machines and devices. Whether you’re a student, researcher, or simply curious about the world around you, our “真空” post_tag is sure to provide you with insightful information and engaging content. Stay tuned for updates and more posts on this fascinating subject!
雷射光能在真空中傳播嗎？
雷射光，如我們所知，是一種光。而光，是電磁波的一種。電磁波能在真空中暢行無阻，這也是為何我們能接收到來自外太空的星光。所以，雷射光當然也能在真空中傳播！
光在真空中行經幾秒的距離約為一公尺？
光，這無垠宇宙中最快的使者，以每秒近三十萬公里的速度穿梭。那麼，在台灣的日常生活中，光需要多久才能走完一公尺呢？答案令人驚嘆：僅僅約莫三十億分之一秒！這微小的時間，卻蘊含著無盡的科學奧秘，值得我們持續探索。