Conduction Collection

ECGs of a normal heart rate, artwork
Electrocardiograms (ECG) of a normal heart rate, artwork. An ECG measures the electrical activity of the heart. The wave on the ECG appears upwards or downwards depending upon whether the electrical

An engraving depicting Andreas Cuneus attempting to electrify water contained in a Leyden bottle (1746)
5311346 An engraving depicting Andreas Cuneus attempting to electrify water contained in a Leyden bottle (1746). Muschenbroek, Cuneus' teacher

Balloons used as lightning conductors
3732701 Balloons used as lightning conductors; (add.info.: Engraving depicting balloons used as lightning conductors in France. Dated 19th Century.); Universal History Archive/UIG.

Electrical experiment made on a man by Abbe Jean Antoine Nollet (1700-70
XIR266904 Electrical experiment made on a man by Abbe Jean Antoine Nollet (1700-70) in a physicist cabinet, frontispiece illustration from Essai sur l electricite des corps by Nollet, published 1746

A view of the apparatus and part of the great cylinder in the Pantheon, Oxford Street, London (engraving)
585978 A view of the apparatus and part of the great cylinder in the Pantheon, Oxford Street, London (engraving) by Rooker

Experimenting with electricity, plate from Essai sur l electricite des corps
619904 Experimenting with electricity, plate from Essai sur l electricite des corps by Abbot Jean Antoine Nollet, detail of animals in cages

Two instruments to study electricity (engraving) (b / w photo)
XIR224435 Two instruments to study electricity (engraving) (b/w photo) by French School, (18th century); Bibliotheque Nationale, Paris

Experiment on frogs by Louis Galvani (1737-98) late 18th century (engraving) (b / w photo)
XIR217898 Experiment on frogs by Louis Galvani (1737-98) late 18th century (engraving) (b/w photo) by French School, (18th century); Private Collection; (add.info.: experiment on frogs; ); French

Jean Chappe d Auteroche (1722-69) Experimenting with Electricity in 1761, Tobolsk
CHT207875 Jean Chappe d Auteroche (1722-69) Experimenting with Electricity in 1761, Tobolsk, Siberia, illustration from Le Magasin Pittoresque, 1855 (engraving) (b/w photo) by Pauquet

Electrical experiment made on a man by Abbe Jean Antoine Nollet (1700-70
3493764 Electrical experiment made on a man by Abbe Jean Antoine Nollet (1700-70) in a physicist cabinet, frontispiece illustration from Essai sur l electricite des corps by Nollet, published 1746

Abbe Nollets electricity machine, 1746, copy by Boris Mestchersky (d
STC397184 Abbe Nollets electricity machine, 1746, copy by Boris Mestchersky (d.1957) illustration from Histoire de la Nation Francaise, Sciences, Volumes I & II, by Gabriel Hanotaux (1853-1944)

Experiment on frogs, illustration from De viribus electricitatis in motu
XIR217897 Experiment on frogs, illustration from De viribus electricitatis in motu muscumari (engraving) (b/w photo) by French School, (18th century); Bibliotheque Nationale, Paris

Experiment on frogs, illustration from De viribus electricitatis in motu
XIR232085 Experiment on frogs, illustration from De viribus electricitatis in motu muscumari (engraving) (later colouration) by French School, (18th century); Bibliotheque Nationale, Paris

Electrical discharge of bodies electrified by points, plate from Essai sur l
XIR224432 Electrical discharge of bodies electrified by points, plate from Essai sur l electricite des corps by Abbot Jean Antoine Nollet (1700-70) 1749 (engraving) (b/w photo) by Gobin (18th century)

The Electric Light, Mr Edison (1847-1931) in his Laboratory (engraving) (b / w photo)
XJF134156 The Electric Light, Mr Edison (1847-1931) in his Laboratory (engraving) (b/w photo) by English School, (19th century); Private Collection; English, out of copyright

Cardus Maximus Street with underground conduction of water, in the Phoenician-Punic-Roman city of Tharros

Engraving depicting an experiment showing how expansion is caused by heat

ELECTRICITY. Insulated Metallic Spheres, electrified by contact with charged conductor and conduction. Engraving, 19th century

ECG, artwork F006 / 4606
ECG. Computer artwork of an electrocardiogram (ECG) showing a normal heart rate

Chip connector, SEM
Chip connector, coloured scanning electron micrograph (SEM). This connecting wire (yellow, top) has been soldered to a terminal pad at the edge of a silicon microchip

ECG, computer artwork
ECG. Computer artwork of an electrocardiogram (ECG) showing a normal heart rate

19th Century electricity demonstrator. 1860 model used to demonstrate electrical conduction

Graphene sheet. Computer artwork showing the structure of a graphene sheet. Graphene is a single layer of graphite. It is composed of hexagonally arranged carbon atoms (spheres)

Voltaic pile made by Volta, 1799 C016 / 3646
Original voltaic pile. An original voltaic pile, an early form of battery, made in 1799 by Alessandro Volta (1745-1827). The three perspex rods are modern additions to hold the pile together

The Toledo Steam Car, (London, 1879)

Daniell cell battery
Daniell cell. Invented by the British chemist John Frederic Daniell (1790-1845), the Daniell cell (left) is made from two half-cells, the electrolytes of which are separated by a porous partition

Static electricity experiments, historical artwork. Turning the wheel at lower right creates a charge on the man on the trapeze, which he passes to the girl on the wooden (non-conducting) block

Heat sink plate (metal, centre) on a radio tuner and amplifier circuit board. This is a protective device that absorbs and dissipates excess heat generated by the components of the circuit board

ECG. Computer artwork of an electrocardiogram (ECG) showing a normal heart rate. An ECG measures the electrical activity of the heart

Electrical conduction in the heart, artwork. Each heartbeat is initiated by an electrical impulse from the sinoatrial (SA) node (green oval) in the right atrium (upper heart chamber)

ECG and man running. Computer artwork of an electrocardiogram (ECG) showing a normal heart rate and the outline of a man running. An ECG measures the electrical activity of the heart

ECG of a normal heart rate
Electrocardiogram. Hands holding an electrocardiogram (ECG) of a normal heart rate. An ECG measures the electrical activity of the heart

Ice cubes melting on glass

ECG and brain outline
ECG and brain. Computer artwork of an electrocardiogram (ECG) showing a normal heart rate and the outline of a human brain. An ECG measures the electrical activity of the heart

Hydrogen conductivity, 19th century
Hydrogen conductivity experiment. Electrical current (wires at bottom) is being passed through a platinum wire connecting two electrodes. In air the platinum wire glows due to resistance

18th Century electrical experiment
Igniting spirits of wine by means of an electrostatic discharge. A man, standing on an insulating wax tablet, holds a charged glass rod in his left hand and a sword in his right

Helicotrema cochlear structure, diagram
Helicotrema cochlear structure. Diagram of a cross-section through the cochlea (an organ found in the inner ear), showing the helicotrema

ECG of a normal heart rate, artwork
Electrocardiogram (ECG) of a normal heart rate, artwork. An ECG measures the electrical activity of the heart. Contractions are caused by electrical signals between the upper (atrial)

Heart conduction system, artwork
Heart conduction system. Artwork showing the impulse conduction system (red) of the human heart. The sinoatrial (SA) node consists of self-excitatory muscle cells that contract rhythmically at around

Electricity power pylon
Electric Power Pylon spreads the energy to the Grid

Grey and Whelers conduction experiment
Stephen Grey was the first to conduct electricity from one point to another. Amongst his electrical experiments Grey carried out an experiment conducting electrical current vertically from

Electrical effect, computer artwork

ECG, conceptual artwork
ECG. Computer artwork of a spiral electrocardiogram (ECG) showing a normal heart rate

Electricity / Magnetism
Magnetism demonstrated

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Conduction: Unveiling the Mysteries of Electricity Step into the world of conduction, where electricity flows and sparks ignite a realm of scientific wonders. From ECGs capturing the rhythm of a normal heart rate to captivating artwork depicting electrical experiments, this journey will enlighten your mind. In the 18th century, Abbe Jean Antoine Nollet delved into uncharted territory with his groundbreaking electrical experiment on a man. The apparatus in London's Pantheon stood as a testament to his pioneering spirit, showcasing the power that lay within electricity. As we explore further, we encounter two instruments meticulously designed for studying electricity. These engravings transport us back in time when scholars sought to unravel its secrets and harness its potential. Louis Galvani's late 18th-century experiment on frogs takes center stage next. Through an engraving captured in black and white, we witness Galvani's quest to understand how electricity affects living organisms—a pivotal moment in our understanding of conduction. Jean Chappe d'Auteroche continues this exploration by experimenting with electricity in Tobolsk during 1761. His dedication pushes boundaries as he seeks answers beyond what is known—an embodiment of human curiosity at its finest. Returning to Abbe Nollet's work, we marvel at his ingenious creation—the mesmerizing "Abbe Nollets electricity machine" from 1746. This masterpiece showcases not only his technical prowess but also highlights humanity's insatiable thirst for knowledge and innovation. Finally, illustrations from De viribus electricitatis in motu depict yet another frog experiment—each stroke revealing intricate details about conduction and its impact on nature itself. It serves as a reminder that even humble creatures can unlock profound truths about our electrified world.