Sir Frank Watson Dyson 1868-1939
was born near Ashby de la Zouche in Leicestershire who is largely
remembered today for introducing the time signals or (pips) from
Greenwich.
Although
not born in Yorkshire when he was very young his family moved to
Yorkshire. He attended the Heath Grammar School, Halifax. He then won
a scholarship to Bradford Grammar School and then Trinity College,
Cambridge where he studied astronomy and mathematics.
In
1894 he was given the post of senior assistant at Greenwich
Observatory and worked on the astrographic catalogue which was a
massive international project which started in the late 19th
century to photograph the night sky. It was only partially success
with some areas of the sky never being completed. The British
section was however completed in 1905.
Frank
Watson Dyson was appointed astronomer royal for Scotland from
1905-1910 and astronomer royal at the royal Greenwich observatory
from 1910 to 1933. He was knighted in 1915.
Probably
his most known contribution came about in 1924 when he introduced the
six time pips via the BBC. While in 1928 he introduced what was at
the time the most accurate clock and organised wireless transmissions
from the GPO wireless station at Rugby. With all his work on clocks
he was for several years the president of the British Horological
Society.
Sir
Frank met King George v in 1925 and took him for a tour around the
Greenwich Observatory this was part of a meeting of the International
Astronomical Union IAU who were meeting at Cambridge. Frank Watson
Dyson would become president of the IAU between 1928-1932. Another
Yorkshire Alfred Fowler was in fact the first secretary of the IAU in
1919.
Sir
Frank was at Giggleswick School in 1927 for the eclipse of the Sun
that was visible over North Wales and Northern England. He had a
great interest in eclipses of the Sun and helped to organise the
expeditions to Brazil to observe it and astronomers there confirmed
Albert Einstein’s theory of the effect gravity on light.
He
worked with astronomers around the world and this was appreciated
with everyone who knew him. One interesting story much closer to home
comes from the 1920s involved a telephone called that a clergyman
from Blackheath in London took from Sir Frank. He told the clergyman
there was a crack on the church tower. The clergyman asked how do you
know, I can’t see anything wrong. Sir Frank replied No I daresay
not but with my big telescope I can. I assume this was the 28 inch
refractor at Greenwich
The
crater Dyson on the Moon is named after him as is the asteroid 1241
Dysona.
Sir
Frank Watson Dyson’s health was failing and sadly he died on a ship
travelling from Australia back to England. He died on May 25th
1939 and was buried at sea.