Question

Explain the filling of ink
into a fountain pen

Answer 1

Answer:

A fountain pen is a nib pen that, unlike its predecessor, the dip pen, contains an internal reservoir of liquid ink. The pen draws ink from the reservoir through a feed to the nib and deposits it on paper via a combination of gravity and capillary action.

Explanation:

When you put the nib on paper and drag it along, the ink is pulled down a slit in the center of the nib, and down the feed, by capillary action. ... Air enters the pen at the same time through the slit in the nib, and moves in the opposite direction, gradually filling up the reservoir as it empties of ink.