1. Pull out before the penis softens, and hold the condom against the base of the penis while you pull out, so that the semen doesn't spill. Condom should be disposed properly for example wrapping it in a tissue and throwing it away. It's not good to flush condoms down the toilet - they're bad for the environment.
2. The popular name given to a series of optical phenomena that took place in the sky over the U.S. states of Arizona and Nevada on March 13, 1997
3. There are four gears between the main spring and the escapement wheel. The fourth gear's shaft drives the second hand. There is the escapement wheel, the anchor and the oscillating wheel and spring. There are four gears for the hour hand, minute hand and the alarm hand. There are two gears for the alarm hammer, one of which doubles as an escapement wheel.