Q: If there were a planet where water did not evaporate, and on the planet there was also a hole in the ground that was one cubic mile in volume, and a stream of water fed into it at a rate of one milliliter (or "cc") a second, how long would it take before the water had filled the hole totally?
A: 132,084,532 years and seven months and eight days and three hours and 21 minutes and 39 seconds. This is roughly as long as the flower has been on earth.
Q: Hey, how much bigger is an arc-second on earth than on its little buddy the moon?
A: Let's see.
The earth is 24,901.55 miles around the equator.
One 360th of that, one degree, is 69.1 miles.
One 60th of that, one minute of arc, is 1.15 miles.
One 60th of that, one second of arc, is 101 feet.
The moon is 6,790 miles in circumference.
One degree is 18.8 miles.
One minute is 163 feet.
One second is 2.7 feet.
An arc-second on earth is 98.3 feet longer than one on the moon.
Q: And on a pea?
A: An average pea is maybe, what? According to somewhere on the web, "The diameter of a green pea is .25 inches."
One degree of a green pea would then be 176.3 micrometers.
One minute would be 2.93 micrometers.
One second would be 48.83 nanometers.
There you have it, folks. An arc second on earth is 101 feet, on the moon is 2.7 feet, and on a pea is 48.83 nanometers.