第1个回答 2024-07-14
The story of Columbus and the egg is one that many of you have undoubtedly heard before. Columbus demonstrated his unconventional thinking by cracking the egg at its base, allowing it to stand upright. Magicians also have the ability to make eggs stand on end, and their secret lies in several steps: first, they place a layer of salt beneath the egg; then, they gently file the bottom of the egg to make it even; finally, they use a thin layer of rice or an adhesive to secure the egg to a flat surface. However, these methods involve external aids and defy the established "rules."
But is there a way to make an egg stand up naturally? Does the spring equinox play a role in this? In ancient lore, it was believed that eggs could be easily stood upright on the day of the spring equinox. Indeed, the custom of "standing eggs at the spring equinox" has been a part of Chinese seasonal celebrations for many years.香港太空馆馆长助理刘启业认为，鸡蛋确实可以竖立，但这绝不是因为春分（或任何天文上的）关系。每年春分（3月20日~21日），地球在太阳系内的位置没有什么特别，即使是在秋分、夏至、冬至，地球运到远日点、近日点之类的日子，太阳对地球的引力也不会忽然变得能令鸡蛋竖起来。每年春分的农历日期也不一样，由此可知，月球的潮汐力也不是鸡蛋竖立的原因。蛋壳并非绝对光滑，细看之下其实是凹凸不平的。只要能令鸡蛋刚好承托在这些凹纹之上，便能竖起鸡蛋了。其次是把鸡蛋使劲的摇让蛋黄和蛋清分离就可以站起来了。
According to Assistant Director of the Hong Kong Space Museum, Liu Qiyue, eggs can indeed stand up, but it is not due to the spring equinox (or any astronomical relationship). Every year, the spring equinox (March 20th or 21st) does not offer any special positioning of the Earth within the solar system. Even during the autumnal equinox, summer solstice, or winter solstice, the Earth's movement to its farthest or closest point from the Sun does not suddenly enable the eggs to stand up. Additionally, the lunar calendar date for the spring equinox varies each year, indicating that the moon's tidal forces are not the cause of the eggs standing up.
The shell of an egg is not perfectly smooth; upon closer inspection, it is actually uneven. If one can balance the egg just right on the protrusions of its shell, it can stand up. Another method involves vigorously shaking the egg to separate the yolk from the white, which can also make it stand up.详情