The bright red Time Ball on top of Flamsteed House is one of the world's
earliest public time signals, distributing time to ships on the Thames
and many Londoners. It was first used in 1833 and still operates today. Each day, at 12.55, the time ball rises half way up its mast. At 12.58
it rises all the way to the top. At 13.00 exactly, the ball falls, and
so provides a signal to anyone who happens to be looking. Of course, if
you were looking the wrong way, you had to wait until the next day
before it happened again. We could have seen it drop but chatted too long over lunch in Greenwich, so we missed it. Guess we'd be some of those Londoners who would have had to wait for the next day. Before this time, only the richest people could afford to buy clocks and watches of
their own. Most people relied on public sundials to tell the time. This
led to different local times across the country, with clocks on the
eastern side of the country about 30 minutes ahead of those in the west.
The difficulties created by everyone using their own local time eventually led to the creation of Standard Time based on the Prime Meridian at Greenwich. |
1 comment:
Oh how fun! I miss England. *sniff* I want to come. :(
What a fun time with your friend. As always, love your pics and explanations.
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