trying to visualize tides/tidal forces/gravity/why there are two high tides on earth

gravity_tidal_force_demo.py

from manim import *
import math

dots_per_row = 120
moon = (10,0)
m2 = 10
G = 1

class MovingDot(Dot):
    def __init__(self, *args, **kwargs):
        self.velocity = [0,0]
        super().__init__(*args, **kwargs)

class Gravity(MovingCameraScene):
    def construct(self):
        dots = []
        for i in range(dots_per_row):
            i = (i-dots_per_row//2)*(7/(dots_per_row//2))
            for j in range(dots_per_row):
                j = (j-dots_per_row//2)*(7/(dots_per_row//2))
                if i*i+j*j >= 3:
                    continue
                dots.append(MovingDot([i,j, 0], radius=0.05))
        self.add(*dots)
        self.wait(1)
        def get_update_dot(acceleration):
            def update_dot(dot, dt):
                for i in range(len(acceleration)):
                    dot.velocity[i] += acceleration[i] * dt
                dot.shift([i*dt for i in dot.velocity]+[0])
            return update_dot
        for dot in dots:
            a = G * m2 / moon[0]
            dotx, doty, _ = dot.get_center()
            moonx, moony = moon
            dx, dy = moonx-dotx, moony-doty
            dist = math.sqrt(dx*dx+dy*dy)
            scale = 1/dist
            dx, dy = dx*scale, dy*scale
            dot.add_updater(get_update_dot((dx,dy)))
        # self.play(self.camera_frame.animate.set_width(20))
        def update_cam(mob):
            mob.move_to(dots[len(dots)//2].get_center())
        # self.camera_frame.add_updater(update_cam)
        self.wait(2)

# self.camera_frame.add_updater(update_cam)
uncommenting this line centers the camera on earth and the resulting animation will show the acceleration which would be imparted by the tidal force