Search Results
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Double-Needle Alphabet
- 1870 – 1900
Table detailing the alphabet used to communicate using a double-needle telegraph system. One of the two main types of electromagnetic telegraphs, needle telegraphs use indicating needles moved electromagnetically as a…
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Passage of current between London and York
- 1870 – 1900
Diagram depicting the passage of current between the cities of London and York in a needle telegraph system. One of the two main types of electromagnetic telegraphs, needle telegraphs use indicating needles moved…
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Passage of current in needle telegraph system
- 1870 – 1900
Diagram depicting the passage of current in a needle telegraph system. One of the two main types of electromagnetic telegraphs, needle telegraphs use indicating needles moved electromagnetically as a means of displaying…
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Phosphorescent Flower Emitting Light in a Dark Room
- 1870 – 1900
Illustration depicting a flower temporarily illuminated through the use of phosphorescent powder.
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Artificial Flower Coated with Phosphorescent Powder, Exposed to the Light of Magnesium Wire
- 1870 – 1900
Illustration depicting an experiment in which an artificial flower coated with phosphorescent powder temporarily becomes luminous and shines in the dark when exposed to magnesium wire.
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Experiment of Instantaneous Crystallization
- 1870 – 1900
Illustration depicting an experiment in the instantaneous formation of salt crystals.
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Seltzer-water Manufactory
- 1870 – 1900
Illustration depicting the manufacture of seltzer or soda water by use of a wheel to force gas into bottled water.
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Snow Crystals
- 1870 – 1900
Illustration depicting a magnified view of an assortment of snowflakes, also known as snow crystals.
- Author Ward, Lock & Co.
- Subject Scientific illustration, Science--Study and teaching, Snowflakes, Ice crystals
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Dial Telegraph Manipulator
- 1870 – 1900
Illustration depicting the manipulator component of a dial telegraph. Devised by French watchmaker Louis-François Breguet, the dial telegraph used electric current to rotate the needle around the dial of a receiver,…
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Dial Telegraph Receiver
- 1870 – 1900
Illustration depicting the receiver component of a dial telegraph. Devised by French watchmaker Louis-François Breguet, the dial telegraph had both the appearance and working mechanism of a clock. When activated by an…
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Morse Alphabet and Numbers
- 1870 – 1900
Text and table detailing the Morse code alphabet and numerals used to communicate via telegraph.
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Handles and Needles of Telegraph
- 1870 – 1900
Illustration depicting the handles and needles used to operate a needle telegraph. One of the two main types of electromagnetic telegraphs, needle telegraphs use indicating needles moved electromagnetically as a means…
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Telegraph Wires and Insulator
- 1870 – 1900
Two illustrations depicting a general view of telegraph wires and a close-up view of the glass or porcelain insulator used to insulate the electrical wires.
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The Needle Telegraph
- 1870 – 1900
Illustration depicting a man using a needle telegraph. One of the two main types of electromagnetic telegraphs, needle telegraphs use indicating needles moved electromagnetically as a means of displaying messages.
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Medico-galvanic Battery
- 1870 – 1900
Diagram depicting a medico-galvanic battery, a type of portable shock-producing electrotherapeutic device commonly in use between 1870 and 1920. Such devices provided both direct and alternating current and were thought…
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Galvanometer
- 1870 – 1900
Illustration of a galvanometer, a device used to detect and measure small amounts of electrical current through the use of a magnetic needle or a coil in a magnetic field.
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Voltaic Pile
- 1870 – 1900
Illustration depicting a voltaic pile, the first electric battery invented by Alessandro Volta in 1800.
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386 items
Wonders of electricity and the elements, being a popular account of modern electrical and magnetic discoveries, magnetism and electric machines, the electric telegraph and the electric light, and the metal bases, salt, and acids
- 1870 – 1900
Educational volume covering a variety of topics related to electricity and the chemical elements in two parts. The first half of the volume is devoted to electrical and magnetic discoveries and modern electric machines,…
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Life cycle of a silkworm from egg to moth
- 1882
Illustration of the life cycle of a silkworm including the egg, worm, moultings, spinning, cocoon, and chrysalis. The process is elegantly displayed on a tree.
This illustration comes from An Instruction Book in the…
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How Corticelli Silk is Made
- An Illustration of the Mode of Producing Silk
- 1882
A foldout plate illustrating the various steps and cycles of silkworm cultivation and raw silk manufacture. Illustrated by Albert Berghaus, this plate first appeared in Frank Leslie's Illustrated Newspaper on August 19,…
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2 items
Portrait of William Henry Perkin Jr. (1860-1929)
- 1880s
Carte-de-visite portrait of English organic chemist William Henry Perkin Jr. (1860-1929), son of chemist Sir William Henry Perkin (1838-1907).
William Henry Perkin Jr. was born in Sudbury, England on June 17, 1860 and…
- Photographer Neumayer, Franz
- Subject Perkin, William Henry, Jr., 1860-1929, Chemists, Portraits, Chemistry, Organic
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2 items
Portrait of William Henry Perkin Jr. (1860-1929)
- 1880s
Carte-de-visite portrait of English organic chemist William Henry Perkin Jr. (1860-1929), son of chemist Sir William Henry Perkin (1838-1907), who is best known for his creation of the first synthetic dye, mauveine, in…
- Photographer Neumayer, Franz
- Subject Perkin, William Henry, Jr., 1860-1929, Chemists, Portraits, Chemistry, Organic