Why Does an Apple Fall Down, Not Up?
Why Does an Apple Fall Down, Not Up? — To fall is not weakness but connection. As the apple seeks the ground and the Moon never leaves the Earth, it is this pull that keeps us from scattering apart. Weight is not a burden — it is the world's hand, holding you close.
Drop an apple and it always falls down — never sideways, never up, always toward the ground. It feels so obvious that almost no one asked: why exactly does the apple fall down? Who, or what, is pulling it?
For a long time people simply believed that "heavy things naturally seek to go down." A stone wanted to return to its home, the earth; flame wanted to rise to the sky. But that was not an answer to "why" — it was just another way of saying "that's how it is." No one could explain what actually did the pulling.
One thinker realized that an apple falling and the Moon orbiting the Earth are the same event. The very force that drops the apple reaches all the way to the Moon and holds it in its path. Every object pulls on every other — stronger when heavier, weaker when farther. The ground pulls the apple, and the apple, ever so faintly, pulls the ground too. The Earth is just so overwhelmingly heavy that only the apple seems to move.
- Satellites and space stations: they orbit by perpetually "falling" around the Earth
- Rocket launches: a craft must reach a speed great enough to overcome gravity
- Tides: the Moon's pull on the oceans raises and lowers the sea
重 (jung) comes from the image of a person bearing a heavy load on the back. Weight (重) is precisely the strength of the Earth's pull. Just as 重 grew to mean both "heavy" and "important" in the East, in physics the force of attraction is the most important thread binding the world into one.
Meet this hanja in Cheonjamun →To fall is not weakness but connection. As the apple seeks the ground and the Moon never leaves the Earth, it is this pull that keeps us from scattering apart. Weight is not a burden — it is the world's hand, holding you close.