The generation of random numbers has many uses (mostly in statistics, for random sampling, and simulation). Before modern computing, researchers requiring random numbers would either generate them through various means (dice, cards, roulette wheels, etc.) or use existing random number tables.
Yawning, swallowing or chewing helps open the small canal (Eustachian tube) which connects your middle ear in the inner side of the ear drum, and equalizes the pressure with the outer side and causes the sensation of ears popping when swallowing.
A sharp pain on one side that occurs on yawning is characterestic. You will need a CT scan of the joint and an Orthopentogram to diagnose this. Eustachian tube block : The eustachian tube connects the ear to the nose, inflammation such as a cold causes blockage of the tube leading to collection of fluid in the ear.Any blockage or eustachian tube dysfunction can cause pain during yawning or salivation. You should consult an ENT specialist for this.MJ Disorder : It is likely that this is not from the ear itself but a TMJ disorder, or tempero-mandibular joint disorder. The tempero-mandibular joint is the joint between your jaw and the skull, just in front of the ears.