Rough Ways Made Smooth: A series of familiar essays on scientific subjectsProctor, Richard A. (Richard Anthony)
Science
Rough Ways Made Smooth: A series of familiar essays on scientific subjects
Proctor, Richard A. (Richard Anthony)
Science
would have been more correct to say 'swinging seconds.' Leverrier then
examined the doctor's telescope, and presently asked for the record
of the observations. Lescarbault produced it, written on a piece of
laudanum-stained paper which at the moment was doing service as a
marker in the _Connaissance des Temps_. Leverrier asked Lescarbault
what distance he had deduced for the new planet. The doctor replied
that he had been unable to deduce any, not being a mathematician: he
had made many attempts, however.[5] Hearing this, Leverrier asked for
the rough draft of these ineffective calculations. 'My rough draft?'
said the doctor. 'Paper is rather scarce with us here. I am a joiner as
well as an astronomer' (we can imagine the expression of Leverrier's
face at this moment); 'I calculate in my workshop, and I write upon the
boards; and when I wish to use them in new calculations, I remove the
old ones by planing.' On adjourning to the carpenter's shop, however,
they found the board with its lines and its numbers in chalk still
unobliterated.
This last piece of evidence, though convincing Leverrier that
Lescarbault was no mathematician, and therefore probably in his eyes
no astronomer, yet satisfied him as to the good faith of the doctor of
Orgères. With a grace and dignity full of kindness, which must have
afforded a singular contrast to his previous manner, he congratulated
Lescarbault on his important discovery. He made some inquiry also at
Orgères, concerning the private character of Lescarbault, and learning
from the village _curé_, the _juge de paix_, and other functionaries,
that he was a skilful physician, he determined to secure some reward
for his labours. At Leverrier's request M. Rouland, the Minister
of Public Instruction, communicated to Napoleon III. the result of
Leverrier's visit, and on January 25 the Emperor bestowed on the
village doctor the decoration of the Legion of Honour.
To return to astronomical facts.
It appears from Lescarbault's observation, that on March 26, 1859, at
about four in the afternoon, a round black spot entered on the sun's
disc. It had a diameter less than one-fourth that of Mercury (which he
had seen in transit with the same telescope and the same magnifying
power on May 8, 1845). The time occupied in the transit of this spot
was about one hour seventeen minutes, and, the chord of transit
being somewhat more than a quarter of the sun's diameter in length,
Lescarbault calculated that the time necessary to describe the sun's
diameter would have been nearly four and a half hours. The inclination
of the body's path to the ecliptic seemed to be rather more than 6
degrees, and was probably comprised between 5-1/3 and 7-1/3 degrees.
Public-domain text, read in full here on John Shaqi.
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