MyStErY ToPiC and Eagles

In ancient times, the best timepiece was the clepsydra, or water clock, which measured time by the regular dripping of water through a narrow opening. As water accumulated in the lower reservoir, a float carrying a pointer rose and marked the hours. The best water clocks were quite elaborate but few in number and fragile. They could not be relied on to tell time more closely than a fairly large fraction of an hour. In medieval Europe, the mechanical clock was invented. Clever arrangements of gears and wheels were devised that could be made to turn by weights attached to them. As the weights were pulled downward by the force of gravity, the wheels were forced to turn in a slow, regular manner. A pointer, properly attached to the wheels, marked the hours. These mechanical clocks were less delicate than water clocks and required less maintenance. They became common in churches and monasteries and could be relied on to tell when to toll the bells for regular prayers or church attendance. (The very word "clock" is from the French cloche, meaning "bell.") Eventually, mechanical clocks were designed to strike the hour and even to chime the quarter-hour. However, they had only an hour hand and were not enclosed. Even the best such clocks would gain or lose up to half an hour a day.  No clock in existence, up through 1656, could measure short intervals of time accurately, or could possible be relied on to tell time to the minute. This meant that advances in physical science were scarcely possible. Almost all of physics and much of chemistry (and even biology) depend on rates, on the rapidity with which processes take place, on the amount of change that takes place per unit of time. In order to measure such rates with the precision required for the development of the laws of nature, intervals of time must be marked off with far greater exactness than was possible for the crude clocks of ancient and medieval times.

The eagles are growing up so fast. they are so cute one just flew away leaving the nest empty. Im really gonna  miss seeing them but if one of them stays ill be super happy. There is still no eagles in the nest its sad earlier in like may and April they'd be there all the time. Click the length to see them http://www.alcoa.com/locations/usa_davenport/en/info_page/eaglecam.asp