The most important Experiments and their Publication between 1886 and 1889.
1886
10/04
Experiments on the induction associated with the discharge of a Leyden jar
10/25
Initial experiments with the spark micrometer
11/01
Experiments with sparks produced on the discharge of a Rühmkorff coil
11/13
Successful experiment on induction between two open circuits at a distance of 1.5 m from each other
12/02
Detection of resonance phenomena between two electric oscillations
12/03
Observation of oscillation nodes
12/05
Letter to Helmholtz in which Hertz reports on his successful experiments
12/09
Initial experiments on the induction effect of dielectrics (with paraffin)
1887
01/21
Quantitative experiments on electric resonance
01/25
Observation of the effect of light on the discharge sparks
01/27
Experiments with electric light
02/24
Further experiments on the effect of light
03/23
Hertz sends off the paper "On very rapid oscillations" to the Annalen der Physik und Chemie
04/18
Experiments on the reciprocal effects of discharge sparks
04/22
Investigation of the passage of light through liquids, gases and a vacuum
05/03
Experiments on deflection in prisms and on rectilinear propagation
05/05
Experiments on the effects of various types of light
05/09
Experiment on the effect of light on the discharge of electrostatically charged bodies
05/12
Experiments relating to the photographing of the ultraviolet spectrum and its absorption
05/27
Hertz sends off the paper "On an effect of ultra-violet light upon the electrical discharge" to the Annalen der Physik und Chemie
05/31
Hertz writes a shortened version for the reports of the meetings of the Berlin Academy of Sciences
06/20
Experiments on birefringence
06/30
Experiments on the effect of light on liquid electrodes and spark discharges
07/07
Letter to his father in which Hertz reports on his experiments on the effect of ultraviolet light on electric discharges
07/18
Experiments with discharge sparks
09/07
Resumption of experiments on rapid electric oscillations
09/16
On discovering disturbances which affect the experiments Hertz moves into the auditorium
09/19
Experiments on the relative position of the electric circuits
09/25
Completion of a drawing, presumably related to the paper "On the action of a rectilinear electric oscillation upon a neighbouring circuit" for the Annalen der Physik und Chemie
10/05
Experiments on the influence of dielectrics with books (paper) and asphalt
10/12
Experiments on phase differences
10/14
Experiments with apparatus of smaller dimensions and with books as dielectric
10/20
Experiments with a block of sulphur
10/21
Experiments with petroleum
10/31
Experiments with paraffin and a block of pitch/ Termination of these experiments for the time being
11/05
Hertz sends off the paper "On electromagnetic effects produced by electric disturbances in insulators" to Helmholtz
11/07
Discovery of standing electric oscillations in rectilinear wires
11/08
Experiments with various kinds of wire
11/10
Experiments on interference between waves in air and waves in wires
11/12
Experiments on the velocity of propagation
12/08
Letter to Helmholtz in which Hertz reports on his latest successful experiments
12/17
Further experiments on interference
12/22
Experiments on phase in wire and on the velocity of propagation
12/26
Confirmation of the finite velocity of propagation
12/29
Experiments on the shadowing effects of sheet metal and on reflection from walls
1888
01/01
Letter to his parents in which Hertz reports on his experiments on the velocity of propagation
01/21
Hertz sends off the paper "On the finite velocity of propagation of electromagnetic actions" to Helmholtz
03/01
Initial experiments with a smaller circular resonator and a microscope to observe the sparks of the discharge
03/05
Experiments on the formation of shadows by electromagnetic rays
03/10
Experiments with a large concave mirror
03/12
Standing waves are obtained for the first time during experiments in the auditorium
03/15
Experiments with plane mirrors
03/19
Letter to Helmholtz in which Hertz reports on reflection and on standing waves
03/24
Experiments with rectilinear secondary conductor
03/31
A copy is made of the paper "On electromagnetic waves in air and their reflection" and presumbly sent off to the Annalen der Physik und Chemie
04/16
Experiments on the propagation of waves in rectilinear wires
04/17
Experiments with spirals
04/20
Experiments with broad strips of metal in order to determine the depth of penetration of the waves
04/27
Experiments with an "electromagnetic bird-cage"
05/02
Experiments to determine the thickness of the layer carrying the waves
05/09
Experiments on propagation in spirals
05/11
Experiments with wire with serrations
05/17
Experiments with metal tubes
06/08
Experiments with electrolytes
10/09
Experiments on the penetration of conductors by the electric field
10/13
Experiments on the penetration into the interior of closed hollow spaces
10/14
Preparatory work on the paper "The forces of electric oscillations, treated according to Maxwell's theory" for the Annalen der Physik und Chemie
10/17
Completion of drawings for the paper ("Hertzian Dipole")
11/12
Experiments with small resonators; discovery of short waves in wires
11/15
Discovery of short waves in space
11/22
Experiments with a parabolic concave mirror
11/24
Initial experiments with two concave mirrors
11/29
Experiments moved to the storage rooms
11/30
Experiments on rectilinear propagation and on reflection; letter to Helmholtz in which Hertz reports on his latest experiments
12/01
Experiments on reflection and polarization
12/02
Unsuccessful experiment on diffraction
12/07
Experiments on diffraction with a prism of pitch
12/09
Work on the paper "On electric radiation", which is sent to Helmholtz before Dec 12th
1889
01/26
Experiments on the reflection of waves in a tube
01/28
Experiments on the transmission of waves through a tube
01/30
Drawings completed for the publication of the paper "On electric radiation" in the Annalen der Physik und Chemie
01/31
This paper is sent off to the Annalen
02/01
Experiments on the penetration into closed tubes
02/11
Experiments on propagation in spirals
02/20
Work on a summary of the experiments to be published as "Recherches sur les ondulations électriques" by the Archives de Sciences Physiques et Naturelles (Geneva)
03/06
Completion of the manuscript for the above summary
03/26
Hertz sends off the paper "On the propagation of electric waves by means of wires" to the Annalen der Physik und Chemie