科学圆桌会|天体物理学博士谈“地球失重7秒”：中学物理就能戳破的谣言为啥还有人信？

Core Viewpoint - A recent rumor claiming that Earth will lose gravity for 7 seconds on August 12, 2026, leading to mass casualties and the moon drifting off its orbit, has gained significant traction on social media, despite being fundamentally flawed and easily debunked by basic physics principles [1][3]. Group 1: Scientific Explanation - The rumor contradicts Newton's law of universal gravitation, which states that all objects with mass exert gravitational force on each other, meaning gravity cannot simply disappear [1]. - If gravity were to vanish even for a second, humans, buildings, and oceans would be flung into space due to centrifugal force, and the atmosphere would dissipate, exposing the surface to lethal cosmic radiation [2]. Group 2: Misleading Tactics - The rumor attempts to gain credibility by linking the "disappearance of gravity" to a solar eclipse on the specified date, exploiting public unfamiliarity with astronomical phenomena [3]. - The claim includes fabricated references to NASA and other scientific institutions, which can be verified as false through official databases [3]. Group 3: Educational Insights - The spread of such misinformation highlights deficiencies in science education, where emphasis is placed on formulaic calculations rather than understanding the broader implications of scientific principles [4]. - Scientific literacy is accessible to anyone with basic education, enabling individuals to discern truth from falsehood using fundamental knowledge [5]. Group 4: Historical Context - Similar doomsday rumors have historically emerged, such as those surrounding planetary alignments and the 2012 Mayan prophecy, all of which have been debunked by scientific evidence [5].