The question of the composition of perceptible objects is one which already occupied the mind of the ancient Greeks.

With this in mind, for some twenty years I have set myself as my particular task the experimental investigation of the connexion between change in the structure and change in the spectra of chemical atoms.

The most common and most important result of them is that the nature and size of the effect on corresponding series of different elements are largely an expression of the peculiarity of their atomic structure - or, at least, of the structure of the surface.

The removal of an electron from the surface of an atom - that is, the ionization of the atom - means a fundamental structural change in its surface layer.

If the experimental physicist has already done a great deal of work in this field, nevertheless the theoretical physicist has still hardly begun to evaluate the experimental material which may lead him to conclusions about the structure of the atom.

It is more likely that more than a century will pass before we know the structure of the chemical atoms as thoroughly as we do our solar system.

Many scientists will have to contribute to the solution of the great problem; they will have to follow up and measure all those phenomena in which the atomic structure is directly expressed.

The discovery of various phenomena has led to a recognition of the fact that the chemical atom is an individual which again is itself made up of several units into a selfcontained whole.

The movement of the emitters of the spectral lines may be deduced on the basis of the Doppler principle.

The emitters of the spectral series are without exception single atoms, not compounds of atoms.

For under certain conditions the chemical atoms emit light waves of a specific length or oscillation frequency - their familiar characteristic spectra - and these can come in the form of electromagnetic waves only from accelerated electric quanta.

The question of the composition of perceptible objects is one which already occupied the mind of the ancient Greeks.

By recognizing that the chemical atom is composed of single separable electric quanta, humanity has taken a great step forward in the investigation of the natural world.

Thus at the beginning of 1906 it seemed to be established that the emitters of the spectral series of chemical elements are their positive atomic ions.

An external electric field, meeting it and passing through it, affects the negative as much as the positive quanta of the atom, and pushes the former to one side, and the latter in the other direction.

We have learnt through experience that when an electrical ray strikes the surface of an atom, an electron, and in some circumstances a second and even a third electron, can be detached.

In my view the structure of the whole atom was that of an individual, with all its parts interconnected, and the emission of a spectral line appeared to me to be the result of the coherence and co-operation of several electric quanta.

A beam of luminous hydrogen canal rays has, owing to its velocity, exactly the same direction as that of the electric field in which it may be made to move.

By allowing the positive ions to pass through an electric field and thus giving them a certain velocity, it is possible to distinguish them from the neutral, stationary atoms.

At the head of these new discoveries and insights comes the establishment of the facts that electricity is composed of discrete particles of equal size, or quanta, and that light is an electromagnetic wave motion.

Along a series of lines running from longer to shorter wavelengths the effect of the electric field becomes greater as the serial numbers increase - that is, as the wavelength decreases.

Moreover, the abundance of chemical compounds and their importance in daily life hindered the chemist from investigating the question, in what does the individuality of the atoms of different elements consist.

We can in fact first place the beam of rays of moving positive atomic ions in a plane perpendicular to the axis in which we see the spectral lines emitted by them.

Cancer can take away all of my physical abilities. It cannot touch my mind, it cannot touch my heart, and it cannot touch my soul.

A man must be strong in that profession, he must have vigor of body and mind, yet I am all out of breath if I walk up a hill; I have not the heart to crush even a fly.

There are those, I know, who will reply that the liberation of humanity, the freedom of man and mind, is nothing but a dream. They are right. It is. It is the American Dream.

The experience of life consists of the experience which the spirit has of itself in matter and as matter, in mind and as mind, in emotion, as emotion, etc.

Singularity shows something wrong in the mind.

Remember above all that mental stability comes by examining the contents of the mind, not by avoidence.

I think we will have a boy baby and he will be born on the 20th of August. Everyone else has a girl baby and at times I don't believe I should mind having a little Phyllis Dawn but Dearest wants a boy and I do.

Do not dwell in the past, do not dream of the future, concentrate the mind on the present moment.

But if anyone supposes that there was no commercial fraud in the Middle Ages, let him study the commercial legislation of England for that period, and his mind will be satisfied, if he has a mind to be satisfied and not only a fancy to run away with him.

The mind moves in the direction of our currently dominant thoughts.

I love the male body, it's better designed than the male mind.

Disney had such a hold on the mind of America-they were Adolf Hitler. The whole country thought Disney was some sort of god and that animation was some sort of pure thing for children.

One of the most difficult things to contend with in a hospital is that assumption on the part of the staff that because you have lost your gall bladder you have also lost your mind.

I did know that the book would end with a mind-boggling trial, but I didn't know exactly how it would turn out. I like a little suspense when I am writing, too.

Many ideas grow better when transplanted into another mind than in the one where they sprung up.

With a firm and steadfast mind one should hold under all conditions, that everywhere the earth is below and the sky above, and to the energetic man, every region is his fatherland.

Periods of wholesome laziness, after days of energetic effort, will wonderfully tone up the mind and body.

Keep your blood clean, your body lean, and your mind sharp.

There were two things going on: 1) I had already established in my own mind where I wanted to go with the next series, and having James around as a Grey Eminence would have complicated matters. He had had an amazing life and it was time to bid him good-bye.

Strength of mind rests in sobriety; for this keeps your reason unclouded by passion.

I've been on the show for six years and I don't even know what her history is. I sort of make things up in my mind, but I think it's hard for an audience to follow and invest in a character when they don't have the details.

My photographs are not planned or composed in advance, and I do not anticipate that the onlooker will share my viewpoint. However, I feel that if my photograph leaves an image on his mind, something has been accomplished.

There is no such thing as a Mass Mind. The Mass Audience is made up of individuals, and good advertising is written always from one person to another. When it is aimed at millions it rarely moves anyone.

To my mind, the most important aspect of the Nobel Awards is that they bring home to the masses of the peoples of all nations, a realization of their common interests. They carry to those who have no direct contact with science the international spirit.

Well, I don't know what Ron has in mind, but I do know about the arc of the show. Looking at how intuitive and instinctive Eddie and I play, that is the sort of thing that leads into sexual chemistry. I wouldn't be surprised if it emerged.

A mind which really lays hold of a subject is not easily detached from it.