Text books often show the nucleus of a gold atom to be about 1.5 cm in diameter, with the nearest electrons about 4 cm from the centre of the nucleus.
In reality, the diameter of the nucleus is about 10-15 m and the diameter of the
atom is about 10-10 m.
If a textbook was drawn to scale, how wide would a page be to correctly
accommodate the artwork?

compass can be used day and night, cloudy or sunny

what is the actual question though?

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

well clustered together.

points close on a scatter diagram