Clockmaker John Harrison Vindicated 250 years after absurd claims
After a
hundred day trail, the timepiece known as Clock B which has being sealed in a
plastic box to prevent tempering has now being declared by Guinnese as the
world most accurate mechanical clock with a pendulum swinging in free air.
The
most important and intriguing thing about the clock, was that it was designed
for over 250 years ago. The British clockmaker whose marine chronometer had revolutionized seafaring
in the 18th century and a subject of longitude by Dava Sobel. when he claimed
that he could make a pendulum timepiece that was accurate to within a second
over a 100-day period triggered widespread ridicule and he was told it is not simple impossible, but now in time it was possible and it has being made.
Harrison
Decoded towards a perfect clock, observatory scientist revealed that a clock
that had been built to clockmaker’s exact specification had run a 100 days
period official test and lost only five-eight of a second in that period.
This was
an extraordinary achievement and it completely vindicated Harrison who initially claimed he could make such a clock. Harrison
had all this while suffered ridicule and was told that the task was not simply
possible, but the achievement was made possible now with Harrison specification of the clock.
Harrison
was awarded a god sum of money and he died a rich man, but before his death, he
produced a book in which he named some
of his rivals and claims he will make a
time piece that can be more accurate than anyone they could build.
The book
produced by Harrison was savagely criticized, and the London Review of English and
Foreign Literature describing it as one of the most
unaccountable production we have ever met with. But his ideas was long
forgotten until the 1970s when interst in a super-accurate pendulum was
reawaken.
The
artist and clockmaker Martin Burges tries to decipher Harrison’s plans, and in his
second attempts he produced two versions of his great clock, where Clock B was
the focus and attempts to make it to accuracy in the past year. McEvoy said “Essentially we have been fine-tuning the
clock so that we can bring it to full potential and accuracy”
Worshipful
Company of Clockmakers and the National Physical Laboratory carried out the
observation of the clock last year and it showed that Harrison claims can be
perfected to standard, and this led to this year final test that started January
6th when the clock was sealed in a plastic box, and at the start of the test
the clock showed it was running at quarter of a second behind Greenwich Mean
Time and at the end of the trail it was noticed that the clock read 7/8ths of a
second behind GMT and has lost 5/8th of second in 100-day trail, thus Harrison's remarkable design can now be seen for what it was “a master piece”

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