Why Yawning Is Contagious: You yawn to equalize the pressure on your eardrums. This pressure change outside your eardrums unbalances other people's ear pressures, so they must yawn to even it out.
Communist China is technologically underdeveloped because they have no alphabet and therefore cannot use acronyms to communicate ideas at a faster rate.
The earth may spin faster on its axis due to deforestation. Just as a figure skater's rate of spin increases when the arms are brought in close to the body, the cutting of tall trees may cause our planet to spin dangerously fast.
The reason hot-rod owners raise the backs of their cars is that it's easier to go faster when you're always going downhill.
The quantity of consonants in the English language is constant. If omitted in one place, they turn up in another. When a Bostonian
" the lost r's migrate southwest, causing a Texan to
" his car and invest in