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.
My ears have been popping for over a year, maybe 2. They pop everytime I swallow or yawn. EVERY TIME!!! I've been to a few ENT Specialists who have led me to nowhere. I've been on allegra and nasonex with one doctor. No results or improvement. Another doctor just laughed it off and said it was no big deal.