Why are ink pens not allowed in aeroplanes?

Asked by Pranav_is_smart | 21st Oct, 2008, 04:45: PM

Expert Answer:

According to the  Boyles Law, If the temperature is constant , pressure is  inversely proportional  to volume.In the aeroplane cabin there is a reduced pressure than the sea level at the time of ascend.These reduced pressure acts on the pen's catridge and the volume of the air inside the catridge of the pen increases.It forces the ink to flow out of the pen.It takes some time for the air to equalize with the pressure outside.  But now some pens have  "breather tubes"  that helps to avoid these situations.


Answered by  | 22nd Oct, 2008, 12:39: PM

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