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- Title: Seventh Lecture (First Scientific Lecture-Course)
- yourselves. Take a little tube and look through it, so that you
- Title: Eighth Lecture (First Scientific Lecture-Course)
- tube, which we connect with another tube full of air, so that the
- movements of the metallic tube are communicated to this air. If we
- then put a very light and mobile dust into the tube that is filled
- Title: Ninth Lecture (First Scientific Lecture-Course)
- glass tube from which the air has to a certain extent been pumped
- the tubes which you here see. In effect, the terminals from which
- the electricity will discharge into the tube are put far apart
- — as far as the length of the tube will allow. There is a
- thus quickly. You see what is there going through the tube, —
- air inside the tube.
- phenomena which thus appeared in tubes containing highly attenuated
- tubes, to get to know their conditions and reactions. Certain
- through these tubes is in fact endowed with remarkable properties,
- the body of light that is going through this tube — this
- the tube is not to be described as a wave-movement, propagated
- the tube; these, as material particles, are then attracted by the
- the tube has reached a state no longer merely gaseous but beyond
- physical conceptions. The process in these Hittorf tubes (Hittorf
- or that of matter — would suffice us here. The Hittorf tubes
- such a tube, they now imagined there to be two different kinds of
- Title: Tenth Lecture (First Scientific Lecture-Course)
- phenomena produced by the passage of electricity through tubes in
- cathode rays, issuing from the negative pole of the Hittorf tube
- generate the electric current; we pass it through this tube in
- through the tube, we are now getting the so-called cathode rays. We
- please. Inside the tube is the St. Andrew's cross. The cathode rays
- Hittorf tubes are compelling us to go more into the facts. Mere
- tubes makes itself known to us in phenomena of light, etc. Whatever
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