This is Galileo’s argument from “The Assayer,” which I encountered in both my history survey of modern philosophy and in metaphysics. Galileo. Galileo Galilei; Il Saggiatore (The Assayer); Rome, This quietly polemical text puts the case for a pared-down scientific conception of matter and a. Il saggiatore (The assayer) by Galileo Galilei (–) is the final and most significant work in the polemic regarding the characteristics of.
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His amazement was increased when upon entering a temple he heard a sound, and upon looking behind the gates discovered that this had come from the hinges and fastenings as he opened it. The notion was put forth so temperately by Guiducci that at the end he said, [p. Now let a slight breeze spring up and ruffle the surface of the water, when you will see the image of the sun begin to break up into many pieces and extend into a wider area.
From these conditions I cannot separate such a substance by any stretch of my imagination. This implies that the fixed stars, which are remote objects, are less enlarged than things within a room or a courtyard, for it appears to me that Sarsi includes things which he calls “nearby” within those limits, he not having specifically removed this boundary to any greater distance.
But it is wrong to say, as Sarsi does, that Guiducci and I would laugh and joke at the experiences adduced by Aristotle. I say I do not wish to be counted as an ignoramus and an ingrate toward Nature and toward God; for if they have given me my senses and my reason, why should I defer such great gifts to the errors of some man?
I reply that if those poets could be present at our experiments they would change their views, and without disgrace they could say they had been writing hyperbolically-or even admit they had been wrong.
These blows of blind men have been given Your Excellency will note the great confidence which Sarsi places in the sense of sight, deeming it impossible for us to be deceived by a spurious object whenever that may be set beside a real one.
Now this button may be used two or three months before the gilding will wear off, and yet since the gilt is ultimately consumed it must be diminishing every day and even every hour.
Attacking the first conclusion with great boldness, be says that to anyone who once looked at the comet, no other argument is necessary to prove the nature of its light, for by comparison with other true lights it clearly showed itself to be real and not spurious.
Works of Galileo Galilei, Part 3, Volume 15, Astronomy: The Assayer
For my part I do not merely excuse him, I praise him; for to me it appears he has accomplished the asaayer. If its nature is different, experiments made with our flames are not conclusive.
You will see a bright reflection of the sun assayef the surface of the sea near the line passing vertically through the solar disk.
The same instrument is said [p. Sarsi, and not I who valileo refuge in these minutiae and in “at any rate. At first they tried to persuade me not to be upset by obstinate attacks, saying that in the end those would rebound upon their authors and merely thf my own reasoning more lively and attractive, furnishing as they did clear proof that my essays were of an uncommon nature. If the Preacher should confront you and say: It is my affair to print my ideas for the world to read, Sarsi, not yours.
For a pastime be raised birds, whose songs he much enjoyed; and he observed with great admiration the happy contrivance by which they could transform at will the very air they breathed into a variety of sweet songs.
To this I shall reply by making a distinction. The purpose of this was to maintain the axis of the earth parallel to itself throughout the year in order to account for the seasons. Hence I think that tastes, odors, colors, and so on are no more than mere names so far as the object in which we place them is concerned, and that they reside only in he consciousness. But if that is what Aristotle meant, why didn’t he say “friction”?
And this reasoning, easy as it is, I wish to reveal to Your Excellency, for if set forth where it is to the purpose it may by its simplicity reduce the incredulity of those who like Sarsi try to diminish whatever praise there may be in this that belongs to me.
The charge of plagiarism from Galileo’s books could not be aimed at Scheiner himself for obvious reasons, but judging from the bitter attack on Galileo in the Rosa Ursina and from its author’s undoubted role in Galileo’s final condemnation, Scheiner believed that to be the intention. It will not spread over a large area; indeed, if the water is quite calm you will see a pure image of the sun as sharply bounded as in a mirror.
It is true that because eagles are rare birds they are little seen and less heard, while birds that fly like starlings fill the sky with shrieks and cries, and wherever they settle befoul the earth beneath them. Will he say that this comes about because they are made of different materials?
Anyone would make a serious error if he said that the hand, in addition to the properties of moving and touching, possessed another faculty of “tickling,” as if tickling were a phenomenon that resided in the hand that tickled.
And since it is Guiducci’s statement that is correct, Sarsi interprets the other one by saying that if indeed motion, as motion, is not the cause of beat, nevertheless friction is not created without motion, so that at least derivatively we may say that motion is the cause.
The Assayer | work by Galileo |
He begins by defining heat. Actually in the brilliance of the brightest flashes of lightning not the slightest movement or change of shape is discerned in the clouds, and this is just when thunder is being formed.
Guiducci, ga,ileo the hope of doing something that would be welcome to men studious of truth, proposed with all modesty that henceforth it would be good to consider the nature of a comet, and whether it might be a mere appearance rather than a real object. Immediately the entire press was filled with attacks against my Discourse. I shall be content to have you shoot an arrow not with a simple longbow, but with the stoutest steel crossbow, or use a catapult drawn by lovers and windlasses that could not be managed by thirty of your ancient heroes.
Sarsi seems to think that our intellect should be enslaved to that of some other man.
Well, it truly is a great advantage to have one’s bread buttered on both sides, and to be able to say: Resourcefulness of this sort made him a very hard man to silence. Why should I believe blindly and stupidly what I wish to believe, and subject the freedom of my intellect to someone else who is just as liable to error as I am? The first night after my return I solved it, and on the following day I constructed the instrument and sent word of this to those same friends at Venice with whom I had discussed the matter the previous day.
I say nothing of certain unpublished private discussions, demonstrations, and propositions of mine which have been impugned or called worthless; yet even these have sometimes been stumbled upon by other men who with admirable dexterity have exerted themselves to appropriate these as inventions of their own ingenuity.
Here are Guiducci’s words: Assauer touched upon the soles of the feet, for example, or under the knee or armpit, it feels in addition to the common sensation of touch a sensation on which we have. They pointed out to me the familiar maxim that vulgarity and mediocrity receive little or no attention and are soon left in the galoleo, while men’s minds turn to the revelation of wonders and transcendent things-though these indeed may give rise in ill-tempered minds to envy, and thereby to slander.
Passing then to two, and knowing as before that a glass with parallel faces alters nothing, I concluded that the effect would still not be achieved by combining such a glass with either of the other two.
I realize that gailleo those th go about in masks are low persons who attempt by disguise to gain esteem among gentlemen and scholars, utilizing the dignity that attends nobility for some purpose of their own. Sarsi should not have undue trouble in understanding that even if all the material involved in a comet is equally illuminated, sunlight might be reflected to the eyes of one particular observer only from some particular part of it.
These qualities are different from those qualities determined by our senses or secondary qualities.