Question

why are foutain pens not allowed in aero plane ?​

Answer 1

Explanation:

As you know with increasing attitude Atmospheric pressure decreases , so the pressure inside the pen is more compared to the its surrounding Are (i.e inside the Flight). When we are using the pen , the ink gets spilled due to varying pressure. Hence the caution.

Answer 2

Because at high altitude the atmospheric pressure decreases as compared to pen . Due to imbalance of pressure the ink leaks . This is the reason

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