#th

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. ↗

— Johannes Stark

#composed #discoveries #discrete #electricity #electromagnetic

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. ↗

— Johannes Stark

#atoms #certain #distinguish #electric #field

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. ↗

— Johannes Stark

#certain #characteristic #chemical #come #conditions

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. ↗

— Johannes Stark

#already #atom #begun #conclusions #deal

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. ↗

— Johannes Stark

#before #century #chemical #know #likely

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

— Johannes Stark

#compounds #emitters #exception #series #single

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. ↗

— Johannes Stark

#common #corresponding #different #different elements #effect

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. ↗

— Johannes Stark

#axis #beam #emitted #fact #first

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. ↗

— Johannes Stark

#circumstances #detached #electrical #electron #even

If you believe what you like in the Gospel, and reject what you don't like, it is not the Gospel you believe, but yourself. ↗

— Augustine of Hippo

#truth #bible