Question

Pins in a pin holder do not fall even when it is held upside down. Why is this so?

Answer 1

The pins in a pin holder do not fall even when the holder is turned upside down because a magnet is fitted inside the pin holder. Most pins are made of iron or steel, which are attracted by a magnet. The magnetic force pulls the pins towards the holder and keeps them attached to it. This magnetic attraction is strong enough to prevent the pins from falling due to gravity. Therefore, even when the pin holder is held upside down, the pins remain stuck to it because of the magnetic force of attraction.