University of Padua

It was an easy task to concentrate the malignity of his enemies at Pisa, and so effectually was this accomplished, that Galileo resolved to accept another professorship, to which he had been previously invited.

the chair of mathematics in the university of padua having been vacant for five years the republic of venice had resolved to fill it up and on the recommendation of guido ubaldi galileo was appointed to it in fifteen ninety two for a period of six years previous to this event galileo had lost his father who died in fifteen ninety one at an advanced age as he was the eldest son the support of the family naturally devolved upon him and the secret obligation must have increased his anxiety to better his circumstances and therefore added to his other inducements to quit pisa in september fifteen ninety two he removed to padua where he had a salary of only one hundred and eighty florins and where he was again obliged to add to his income by the labours of tuition notwithstanding this fruitful occupation of his time he appears to have found leisure of composing several of his works and completing various inventions which will be afterwards described his manuscripts were circulated privately among his friends and pupils but some of them strayed beyond this sacred limit and found their way into the hands of persons who did not scruple to claim and publish as their own the discoveries and inventions which they contained it is not easy to ascertain the exact time when galileo became a convert to the doctrines of copernicus or the particular circumstances under which he had led to adopt them it is stated by gerard voss that a public lecture at moschelin the instructor of kepler was the means of making galileo acquainted with the true system of the universe this assertion however is by no means probable and it has been ably shown by the latest biographer of galileo that in his dialogues of the copernican system our author gives the true account of his own conversion the passage is so interesting that we shall give it entire i cannot omit this opportunity of relating to you what happened to myself at the time when this opinion began to be discussed i was then a very young man and had scarcely finished my courses of philosophy which other occupations obliged me to leave off when there arrived in this country from rostock a foreigner whose name i believe was christian a follower of copernicus this person delivered on this subject two or three lectures in a certain academy unto a crowded audience believing that several were attracted more of the novelty of the subject than by any other cause and being firmly persuaded that this opinion was a piece of solemn folly i was unwilling to be present upon interrogating however some of those who were there i found that they all made it a subject of merriment with the exception of one who assured me that it was not a thing wholly ridiculous as i considered this individual to be both prudent and circumspect i repented that i had not attended the lectures and whenever i met any of the followers of copernicus i began to inquire if they had always been of the same opinion i found that there was not one of them who did not declare that he had long maintained the very opposite opinions and had not gone over to the new doctrines till he was driven by the force of argument i next examined them one by one to see if they were the masters of the arguments on the opposite side and such was the readiness of their answers that i was satisfied they had not taken up this opinion from ignorance or vanity on the other hand when i interrogated the peripatetics and the ptolemans and out of curiosity i have interrogated not a few respecting their postual of copernicus's work i perceived that there were few who had seen the book and not one who understood it nor have i omitted to inquire among the followers of the peripatetic doctrines if any of them had ever stood on the opposite side and the result was there was not one considering then that nobody followed the copernican doctrine who had not previously held a contrary opinion and who was not well acquainted with the arguments of aristotle and ptolemy while on the other hand nobody followed the ptolemy and aristotle who had before adhered to copernicus and had gone over from him to the camp of aristotle weighing i say these things i began to believe that if any one who rejects an opinion which he was imbibed with his milk and which has been embraced by an infinite number shall take up an opinion held only by a few condemned by all schools and really regarded as a great paradox it cannot be doubted that he must have been induced not to say driven to embrace it by the most cogent arguments on this account i have become very curious to penetrate to the very bottom of the subject it appears on the testimony of galileo himself that he thought the ptolemaic system in compliance with the popular feeling after he had convinced himself of the truth of the copernican doctrines in the treatise on the spear indeed which bears his name and which must have been written soon after he went to padua and subsequently to fifteen ninety two the stability of the earth and the motion of the sun are supported by the very arguments which galileo afterwards ridiculed but we have no means of determining whether or not he had then adopted the true system of the universe although he might have thought the ptolemaic system in his lecture after he had convinced himself of its falsehood yet it is not likely that he would go so far as to publish to the world as true the very doctrines which he despised in a letter to kepler dated fifteen ninety seven he distinctly states that he had many years ago adopted the opinions of copernicus but that he had not yet dared to publish his arguments in favour of them under his refutation of the opposite opinions these facts would leave us to place galileo's conversion somewhere between fifteen ninety three and fifteen ninety seven although many years cannot be said to have elapsed between these two dates at this early period of galileo's life in fifteen ninety three he met with an accident which had nearly proved fatal a party at padua of which he was one were enjoying at an open window a current of air which was artificially cooled by a fall of water galileo unfortunately fell asleep under its influence and so powerful was its effect upon his robust constitution that he contracted a severe chronic disorder accompanied with acute pains in his body and loss of sleep and appetite which attacked him at intervals during the rest of his life others of the party suffered still more severely and perished by their own rashness galileo's reputation was now widely extended over europe the archduke ferdinand afterwards emperor of germany the landgrave of hesse and the princes of alsace and mantua honoured his lectures with their presence and the prince gustavus adolphus of sweden also received instructions from him in mathematics during his sojourn in italy when galileo had completed the first period of his engagement at padua he was re-elected for another six years with an increased salary of three hundred and twenty florins this liberal addition to his income is ascribed to febroni to the malice of one of his enemies who informed the senate that galileo was living in illicit intercourse with marina without enquiring into the truth of the accusation the senate is said to have replied that if he had a family to support he had more need of an increased salary it was more likely that the liberality of the republic had been called forth by the high reputation of their professor and the terms of their reply were intended only to rebuke the malignity of the informer the mode of expression would seem to indicate that one or more of galileo's children had been born previous to his re-election in fifteen ninety eight but as this was scarcely consistent with other facts we are disposed to doubt the authenticity of febroni's anecdote The new star which attracted the notice of astronomers in 1604, excited the particular attention of Galileo.

the observations which he made upon it and the speculations which they suggested formed the subject of three lectures the beginning of the first of which only has reached our times from the absence of the parallax he proved that the common hypothesis of its being a meteor was erroneous and that like the fixed stars it was situated far beyond the bounds of our own system the popularity of the subject attracted crowds to his lecture-room and galileo had the boldness to reproach his heroes for taking so deep an interest in a temporary phenomenon while they overlooked the wonders of creation which were daily presented to their view in the year sixteen o six galileo was again appointed to the professorship of padua with an augmented stipend of five hundred and twenty florins his popularity had now risen so high that his audience could not be accommodated in his lecture-room

Oh, I have had no luck lately.

On our parting I immediately began to think how there could be any addition to the number of planets without overturning my cosmographic mystery.

According to which Euclid's 5 regular solids do not allow more than 6 planets around the sun.

i am so far from disbelieving the existence of four circumjovial planets that i long for a telescope to anticipate you if possible in discovering two round mars as the proportion seems to require six or eight round saturn and perhaps one each round mercury and venus in a very different spirit did the aristotelians receive the sidereal messenger of galileo the principal professor of philosophy at padua resisted galileo's repeated and urgent entreaties to look at the moon and planets through his telescope and he even laboured to convince the grand duke that the satellites of jupiter could not possibly exist an astronomer of florence maintained that there were only seven apertures in the head two eyes two ears two nostrils and one mouth and as there were only seven metals and seven days in the week so there could only be seven planets he seems however to have admitted the visibility of the four satellites through the telescope but he argues that they are invisible to the naked eye they can exercise no influence on the earth and being useless they do not therefore exist a prodigy of kepler's of the name hotkey wrote a volume against galileo's discovery after having declared that he would never concede his four new planets to that italian from padua even if he should die for it this resolute aristotelian was at no loss for arguments he asserted that he had examined the heavens through galileo's own glass and that no such thing as a satellite existed round jupiter he affirmed that he did not more surely know that he had a soul in his body then that the reflected rays are the sole cause of galileo's erroneous observations and that the only use of the new planet was to gratify galileo's thirst for gold and offer to himself a subject of discussion when horky first presented himself to kepler after the publication of this work the opinion of his patron was announced to him by a burst of indignation which overwhelmed the astonished author horky supplicated mercy for this offence and as kepler himself informed galileo he took him again into favour on the condition that kepler was to show him jupiter's satellites and that orci was not only to see them but to admit their existence when the spirit of philosophy had thus left the individuals who bore so unworthily her sacred name it was fortunate for science that it found a refuge among princes notwithstanding the reiterated logic of his philosophical professor at padua cosmo de medici preferred the testimony of his senses to the syllogisms of his instructor he observed the new planet several times along with galileo at pisa and when he parted with him he gave him his present worth more than a thousand florins and concluded that the liberal arrangement to which he had already referred as philosopher and principal mathematician to the grand duke of tuscany galileo now took up his residence at florence with a salary of a thousand florins no official duties excepting that of lecturing occasionally to sovereign princes were attached to this appointment and it was expressly stipulated that he should enjoy the most perfect leisure to complete his treatises on the constitution of the universe on mechanics and on local motion the resignation of his professorship in the university of padua which was the necessary consequence of this new appointment created much dissatisfaction but though many of his former friends refused at first to hold any communication with him this excitement gradually subsided and the venetian senate at last appreciated his feelings as well as the motives which induced the stranger to accept of promotion in his native land While Galileo was enjoying the reward and the fame of his great discovery, a new species of enemy was roused against him.

Simon Mayer, an astronomer of no character, pretended that he had discovered the satellites of Jupiter before Galileo, and that his first observation was made on the 29th of December, 1609. other astronomers announced the discovery of new satellites shiner recurrent five nine and others found even as many as twelve these satellites however were found only to be fixed stars the names of ladislavian agrippin uranodavian ferdinando tertian which were hastily given to these common telescopic stars soon disappeared from the page of science and even the splendid telescopes of modern times have not been able to add another gem to the diadem of jupiter a modern astronomer of no mean celebrity has even in the present day endeavour to rob galileo of this staple article of his reputation from a careless examination of the papers of our celebrated countryman thomas harriot which baron sacca made in seventeen eighty four at petworth the seat of lord egremonde this astronomer has asserted that harriot first observed the satellites of jupiter on the sixteenth of january sixteen ten and continued his observations till twenty fifth of february sixteen twelve baron zack adds the following extraordinary conclusion galileo pretends to have discovered them on the seventh of january sixteen ten so that it is improbable that harriot was likewise the first discoverer of these attendants of jupiter in a communication which i received from dr robertson of oxford eighteen twenty two he informed me that he had examined a portion of harriot's papers entitled dejuvabilis and that it appears from the two pages of these papers that harriot first observed jupiter's satellites on the seventeenth of october sixteen ten these observations were accompanied with rough drawings of the positions of the satellites and the rough calculations of their periodical revolutions My friend, Professor Riguard, who has very recently examined the Harriot manuscripts, has confirmed the accuracy of Dr. Robertson's observations, and has thus restored to Galileo the honor of being the first and the sole discoverer of these secondary planets.

There's a couple of others as well.

Uh, the, uh, Professor Giulio Fanti as well from Italy, professor of engineering and thermal imaging in, uh, Padua University.

They did laser and infrared spectrometry and load-bearing tests on the flax fibers.

Uh, that also dates the shroud to the era of Christ.

Yeah.

And we had published in 2012, one of the early papers is with Dr. Antonio Paoli from the University of Padua.

And that was in elite gymnasts who were trying to make weight or use it for body favorable body composition changes.

So they had a better power to weight ratio.

I had first become acquainted with my Italian friend by meeting him at certain great houses where he taught his own language, and I taught drawing.

All I then knew of the history of his life was he had once held a position in the University of Padua, that he had left Italy for political reasons, the nature of which he uniformly declined to mention to anyone, and that he had been for many years respectably established in London as a teacher of languages.

Without being actually a dwarf, for he was perfectly well proportioned from head to foot, Peshka was, I think, the smallest human being I ever saw out of a showroom.

Remarkable anywhere by his personal appearance, he was still further distinguished among the rank and file of mankind by the harmless eccentricity of his character.

The issue is also complemented by discussion forum contributions.

In a contribution entitled, Potassium and Aldosterone as Determinants of New-Onset Atrial Fibrillation, Federico Bernardo Rossi, Ambra Sammarco, and Teresa Maria Secchia from the University of Padua in Italy comment on the recently published paper entitled, Hypokalemia and Atrial Fibrillation Detected by Implanted Loop Recorders by August Krebs Haslund et al.

from Copenhagen University Hospital, Rigs Hospitalet in Denmark.

Haslund and colleagues reply in a separate contribution.

He had the voice of like an extremely young man and he was short and low stature and maybe a poor posture.

And, you know, who's this guy they brought in here to talk about these subjects at the University of Padua, you know? And so, yeah.

So you can see like before the time when, hey, you can, your first impression was meeting somebody in person, not just through a podcast and hearing their voice on the radio.

You probably were sizing them up and saying, okay, what's this going to be like? Yeah, yeah.

We'll just bring the microphones to dinner.

Yeah, exactly.

So Galileo was a Venetian who was an excellent mathematician who was the chair of mathematics at the University of Padua.

And that's really important because that means he was the top mathematician, but that's also because he was the top scientist.

Triple threat.

At the University of Padua in Italy, who first proposed this idea of interplanetary gravity assist maneuvers, which was used by the 1974 Mariner 10 mission.

And if anyone's watched Interstellar-

Yeah

Good evening, Signor.

I have come from the southern part of Italy to study at the University of Padua.

I was passing your house and thought you might have a room to let.

Oh, no, no. I'm sorry, my rooms are all rented.