Why moon does not fall towards earth?

See exp.

Explanation:

The moon has a sideways gravitational pull on earth and so does the earth. But, their velocity or motion is not perpendicular.

The distance between the earth and its moon is long! Therefore, the gravitational force is less. Even though the Moon's own gravitational pull on the earth causes tides in oceans.

Hence, distance and the direction of force matters.

Because the moon's gravitational force field radius overlaps with the gravitational field radius of the earth.

Explanation:

It is only when a body is within the radius of the earth that it can get attracted to the earth but when it is out of its radius it can't exert any force on the body. The force decreases as a body moves out of its radius. Therefore the Earth's gravitational force is minimum at its gravitational radius. The moon can't fall towards the earth because:

1: it is not the moon itself that overlaps the Earth's gravitational force field radius but the moon's gravitational force field radius.

2: Although the earth has a minimum force of attraction at its radius that it can use to pull bodies towards itself but the moon also at its radius has a minimum force equal to that minimum force of the earth that it can use to pull bodies to itself .

3: The overlapping of their gravitational force field caused the equilibrium between the two forces they exert inwardly on each other.

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electromagnetic shielding is the practice of reducing the electromagnetic field in a space by blocking the field with barriers made of conductive or magnetic materials. shielding is typically applied to enclosures to isolate electrical devices from their surroundings, and to cables to isolate wires from the environment through which the cable runs. electromagnetic shielding that blocks radio frequency electromagnetic radiation is also known as rf shielding.

the shielding can reduce the coupling of radio waves, electromagnetic fields and electrostatic fields. a conductive enclosure used to block electrostatic fields is also known as a faraday cage. the amount of reduction depends very much upon the material used, its thickness, the size of the shielded volume and the frequency of the fields of interest and the size, shape and orientation of apertures in a shield to an incident electromagnetic

from wikipedia