observatory ball


  • Image 13 of 36

Image Description

before clocks were commonplace observatorys like this one had the duty of keeping a measure of the time, the yellow ball on this observartory drops at 1pm each day, observors from long distances away can tell the time acurately, why would a sound like cannon firing not be so acurate to transmit the time over a long distance?

Keywords
architecture travel direction arrow vane weather wind roof architectural ornament decorative sky building bricks observatory time ball
Resolution:
3500 x 2343
File size:
1409 kB
Download Image

Related Astronomy Images