could be recorded in human subjects by means of surface electrodes, limb leads and a capillary electrometer. The further development of electro-cardiology was made possible by the introduction of the quartz fibre galvanometer (Einthoven, 1912, see demonstration by Adrian, Channel, Cohen & Noble, p. 67P). The apparatus includes a contemporary capillary electrometer, rails and trolley for the photographic plate which was made to run horizontally by a weight and clockwork mechanism, a separate capillary and photo-graphic recorder with a rotating drum and records obtained with the electrometer
T HE early studies of the electrical phenomena associated with the human heartbeat carried out by Wa...
The Electricity and the Heart website1 is intended to facilitate the collection, cataloging and pres...
Modern electrocardiography (ECG) uses a constructed reference potential for the majority of leads. T...
in the leg muscle of the frog (1). Action potentials of skele-tal muscle were later found by several...
Ireland met for the first time its initial task was to set up a committee to define the best locatio...
AbstractThis article is a review of the history of the string galvanometer and of the electrocardiog...
Images taken of a Heartometer made for the Phillips Exeter Academy, ca. 1961. There are 27 images, t...
In the early days of electrocardiography it was the recognized practice to place a patient's ha...
Electrical records were made from the interior of the right heart and attached vessels in 14 normal ...
In the period 1890 to 1895, Willem Einthoven greatly improved the quality of tracings that could be ...
We relate the fundamental stages of the long road leading to the discovery of electricity and its us...
THE electrokymograph is an instrument which permits the graphic regis-tration of the movements of th...
The cathode ray is practically free from inertia and therefore an ideal instrumentality for study-in...
Cardiac diseases are still most widely spread in all regions of the world. And more and more devices...
It has been known for many years that a measurable amount of electric current is associated with the...
T HE early studies of the electrical phenomena associated with the human heartbeat carried out by Wa...
The Electricity and the Heart website1 is intended to facilitate the collection, cataloging and pres...
Modern electrocardiography (ECG) uses a constructed reference potential for the majority of leads. T...
in the leg muscle of the frog (1). Action potentials of skele-tal muscle were later found by several...
Ireland met for the first time its initial task was to set up a committee to define the best locatio...
AbstractThis article is a review of the history of the string galvanometer and of the electrocardiog...
Images taken of a Heartometer made for the Phillips Exeter Academy, ca. 1961. There are 27 images, t...
In the early days of electrocardiography it was the recognized practice to place a patient's ha...
Electrical records were made from the interior of the right heart and attached vessels in 14 normal ...
In the period 1890 to 1895, Willem Einthoven greatly improved the quality of tracings that could be ...
We relate the fundamental stages of the long road leading to the discovery of electricity and its us...
THE electrokymograph is an instrument which permits the graphic regis-tration of the movements of th...
The cathode ray is practically free from inertia and therefore an ideal instrumentality for study-in...
Cardiac diseases are still most widely spread in all regions of the world. And more and more devices...
It has been known for many years that a measurable amount of electric current is associated with the...
T HE early studies of the electrical phenomena associated with the human heartbeat carried out by Wa...
The Electricity and the Heart website1 is intended to facilitate the collection, cataloging and pres...
Modern electrocardiography (ECG) uses a constructed reference potential for the majority of leads. T...