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  • Title: Cover: First Scientific Lecture-Course
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    • Ten Lectures, 23rd December
  • Title: Cover Pressing Page: First Scientific Lecture-Course
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    • Ten Lectures, 23rd December
  • Title: Foreword: First Scientific Lecture-Course
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    • existence to which the scientific era was restricted inasmuch
    • This mental tendency has become habitual throughout the
    • our deeper, latent faculties of knowledge the same
    • I saw any beginnings or indications that seemed to tend in
    • another circumstance. The lectures were attended by members
    • more advanced students. Thus the whole tenor of these
    • in written books intended for the world at large. In these
    • which I should certainly have had to change had I intended it
    • “Competent judgment on the
    • content of these privately printed lectures will of course
    • there be in existence a Science of Nature permeated with the
  • Title: Prefatory Note: First Scientific Lecture-Course
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    • not only to extend the range of information but who look
  • Title: First Lecture (First Scientific Lecture-Course)
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    • have just been read out, some of which were written over 30 years
    • fundamental trend and tendency in Science, which should permeate your
    • of Physics. There is one thing however to which we may draw attention
    • is to some extent, this kind of scientific outlook was predominant in
    • do not envisage the distinction clearly. They always tend rather to
    • clear, to what extent these truths are applicable to that which meets
    • mechanics. Not till we get to mechanics, have we the content of what
    • question only bears in it the possibility, the potentiality as it
    • such point or space forces are concentrated, able potentially to work
    • measures, how strongly such a point or centre has the potentiality of
    • thus centred and concentrated a “potential” or
    • “potential force”. In studying these effects of Nature we
    • then have to trace the potentials of the centric forces, — so
    • sources of potential forces.
    • potentials. In this respect our need will be to take one essential
    • this method, looking only for the potentials of centric forces. Say
    • understand even organic phenomena in terms of potentials, of centric
    • look for centres, — to study the potential effects that may go
    • the potentials, say for the three points a, b and
    • potentials of such and such centric forces. Yet in this way I could
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  • Title: Second Lecture (First Scientific Lecture-Course)
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    • also make it move quicker and quicker, but to a lesser extent; a
    • movement. To that extent, the formula is phoronomical. When I write
    • it is, try making the pressure ever more intense. Try it, — or
    • then go on making it ever more intense. What will happen? If you go
    • only happens to a slight extent we can still bear it; if to a great
    • extent, we can bear it no longer. What underlies it is the same in
    • we come into regions which are opposed to our consciousness and tend
    • balance. We find the object has become lighter to the extent of the
    • the brain displaces is about 1230 grammes. To that extent the brain
    • is lightened, leaving only about 20 grammes. What does this signify?
    • of which the brain is really tending upward, contrary to its own
    • exception of the spinal cord — are only to a very slight extent
    • in this condition. Taken as a whole, their tendency is down-ward.
    • Will in matter and on the other hand the lightening of Will into
    • only bound to downward tending matter. And now please think of this:
    • then see upon the one hand the lightening into Intelligence, brought
    • intelligence is to some extent permeated by Will. In the main
    • ponderable matter. We always tend to go up and out beyond our head
    • Nature. We need a knowledge with a strongly spiritual content,
    • extent that 1230 grammes' weight is lost. Even to this extent is
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  • Title: Third Lecture (First Scientific Lecture-Course)
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    • yourselves to some extent still have to take the same direction with
    • often happens, one does not get down to a thing right away. Now
    • circle that the colours extend inward from the edges to the middle.
    • Where I should otherwise merely get the image extending from red to
    • thing happens. I see the object lifted to some extent. I see it, and
    • shorten the force and so I myself draw the object upward. In meeting
    • the stronger resistance I draw in the force and shorten it. If I
    • denser medium to a more tenuous, the ray is refracted away from the
    • Finding increased resistance in the water, we are obliged to shorten
    • is sinewy, — of bony or cartilaginous consistency. Towards the
    • very remarkable features. Examining the contents of this fluid that
    • senses the light we should expect it to do so more intensely at the
  • Title: Fourth Lecture (First Scientific Lecture-Course)
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    • beg you now, pay very careful attention to the pure facts; we want to
    • of attenuated air. Through these successions of compression and
    • is compression here, then comes attenuation, and all this moves on.
    • spectrum extending from violet to red — engendered directly by
    • get a darker. Why is it so? It simply depends on the intensity of
    • effect of it is not to intensify but to extinguish. As a real active
  • Title: Fifth Lecture (First Scientific Lecture-Course)
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    • is at one place a far more intense yellow line, making the rest seem
    • even darker by contrast. Sodium is therefore often spoken of as
    • existence so to speak, develop such relation to the light that one
    • alchemy was still pursued to some extent, they spoke of so-called
    • green. But if you take your stand to some extent behind it — if
    • is really there. This then, to some extent, is our procedure. We see
    • It is intended to be, what you will find in neither of the two, and
  • Title: Sixth Lecture (First Scientific Lecture-Course)
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    • was said to penetrate from a more tenuous into a denser medium.
    • When the light passes from a more tenuous into a denser medium, to
    • light is sometimes more and sometimes less intense. There can be
    • less strong; he will admit every degree of intensity of light, but he
    • intensity; so likewise, when a space is filled with darkness, it is
    • filled with darkness of a certain intensity. We must proceed from the
    • the other we shall be able to ascribe a certain degree of intensity,
    • material existence. We have indeed paved the way, in that we first
    • has been completely lost; nay, the deliberate tendency has been,
    • it still is to a great extent today. There have indeed been
    • individuals who have attempted from time to time to draw attention to
    • have lost the faculty of focusing attention purely and simply on the
    • bottom of it all? This tendency to add to the phenomena in thought
    • Often I have made the
    • have existence by being of the rose-bush. The cut rose therefore,
    • phenomenon, we must examine to what extent it is a reality in itself,
    • essential thing; observe to what extent a thing is whole, or but a
    • planetary system. The tendency has been, first to regard as wholes
    • sound. For this field of phenomena it is quite patent: vibrations are
    • ether, a tenuous elastic substance. And since the laws of impact and
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  • Title: Seventh Lecture (First Scientific Lecture-Course)
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    • — that is, darkened to some extent. As a result, you will see
    • with this, I also drew your attention to what appears, as is
    • no other relation to the objectively existent ether than all the
    • within us. We human beings, after all, are to a very small extent
    • tension, a relaxation, for the whole of our organic system beneath
    • was especially Julius Robert Mayer who drew attention to this fact,
  • Title: Eighth Lecture (First Scientific Lecture-Course)
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    • confirm what I so often speak of more generally in Spiritual
    • their attention was the velocity with which sound is propagated. To
    • of the earliest things to which men became attentive in this
    • domain. They also became attentive to the so-called phenomena of
    • elements. It has first a certain intensity; secondly a certain
    • this branch of Science. I have already drawn your attention to the
    • strong tendency, above all things, not to enter spiritually into
    • Physics nowadays, is fundamentally a product of the said tendency,
    • oscillation of condensation and attenuation gives, as regards the
    • they may well contend. There are the waves of condensation and
    • attenuation. Then, when my ear is in the act of
    • condensations and attenuations; that unknown something within me
    • type, still connected to some extent with the outer world, could be
    • to some extent analyzing the human eye. Today we will do the same
    • itself. It can only come to existence by virtue of its connection
    • animals the pecten, which man only has etherically, or the
    • of the pecten, these I may rightly compare to what expands in the
    • as you would do if you were listening intently and every time, to
    • is the eye's activity, — it is as though you were listening
    • already in existence, only it is outside of space. It is not yet in
  • Title: Ninth Lecture (First Scientific Lecture-Course)
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    • intention of continuing when I am here again, so that in time these
    • draw your attention to the development of electrical discoveries,
    • other. They confront each other with a certain tension, which they
    • another, are in a certain tension, striving to resolve it. No doubt
    • you have often witnessed the experiment.
    • we turn attention to the discovery made by Galvani. We have what
    • electricity”. It is a force of tension which is really always
    • is a state of tension between muscle and nerve, which, when it
    • which they riveted attention. They were encouraged to do this by
    • and manifold as they appear. These tendencies were crowned to some
    • extent when near the end of the century Heinrich Hertz, a physicist
    • might already have been gathered from the existence of induction
    • necessary tension, you can produce the following result. Suppose we
    • extent. For sound and light, they were imagining wave-trains,
    • life since we are looking rather intently in their direction. Look
    • Hertz's discoveries were still the twilight of the old, tending as
    • afterwards ensued, and was to some extent already on the way in his
    • glass tube from which the air has to a certain extent been pumped
    • through air of very high dilution. High tension is engendered in
    • when it goes through the highly attenuated air. It becomes even
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  • Title: Tenth Lecture (First Scientific Lecture-Course)
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    • content in the matter through which it passes.
    • gaseous but even more attenuated, — revealing also that
    • the property of making the glass intensely fluorescent. Please
    • flowing electricity has become manifest to some extent, as a form
    • anthroposophical lectures I have often given instances of how the
    • in a merely symbolizing way, — in no way consistent with the
    • — optical, acoustic and even thermal to some extent (the
    • be cited. Reality today — especially in Physics — often
    • You swim in the elements of wave and undulation, the real existence
    • Nature. It can indeed become so if we follow up all that is latent
    • intentions we set before us. All I could give were a few hints and
    • untenable ideas — ideas derived from the belief that the
    • conceptions of modern Physics, terrible as these conceptions often
    • are. In public lectures I have often quoted Hermann Grimm.

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