Subtraction Collection

London Society for Teaching the Blind to Read (engraving)
1616851 London Society for Teaching the Blind to Read (engraving) by English School, (19th century); Private Collection; (add.info.: London Society for Teaching the Blind to Read)

Subtraction (engraving)
1099415 Subtraction (engraving) by English School, (19th century); Private Collection; (add.info.: Subtraction. Illustration for The Illustrated London News)

A Lesson in Subtraction (engraving)
2777016 A Lesson in Subtraction (engraving) by English School, (19th century); Private Collection; (add.info.: A Lesson in Subtraction)

Subtraction (engraving)
728915 Subtraction (engraving) by Mahoney, J (fl.1885); Private Collection; (add.info.: Subtraction, by J. Mahoney. Published in the Illustrated London News)

Calculator

The worlds largest typewriter on display at the Business Efficiency Exhibition, White City, London, England in 1931. From The Pageant of the Century, published 1934

Tubular Slide Rule
OTIS KING TUBULAR SLIDE RULE a mechanical calculating devise using addition & subtraction of logarithms to simplify division and multiplication Date: circa 1960

Inaudi, the lightning calculator, performing at the Hippodrome, able to do mentally any sum given by the audience up to twelve figures in addition, subtraction and multiplication. Date: 1903

Arithmometer, 1897 C016 / 2038
Arithmometer. Invented in 1820 and manufactured from the 1850s to 1915, these were the first widely used mechanical calculators

Leibnizs calculating machine. Illustration of the calculating machine, or stepped reckoner, invented by the German mathematician and philosopher Gottfried Leibniz (1646-1716) around 1672

Flyaway Peter, Flyaway Paul

Calculator, simulated X-ray
Calculator. Simulated X-ray of a calculator

Mathematics symbols. Array of basic mathematics symbols formed from metal construction set parts

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"Unveiling the Art of Subtraction: From Tubular Slide Rules to Lightning Calculators" Step into the fascinating world of subtraction, where ancient tools like the Tubular Slide Rule paved the way for modern-day calculators. Delve into history with engravings from the London Society for Teaching the Blind to Read, showcasing their innovative methods in teaching subtraction. Witness captivating scenes such as "A Lesson in Subtraction, " immortalized through intricate engravings that captured educational moments. Marvel at the precision and skill displayed in these depictions of Subtraction, highlighting its importance throughout time. Fast forward to a technological revolution with glimpses of Inaudi, known as "the lightning calculator. " His ability to perform complex subtractions mentally astounded audiences worldwide. The Calculator era dawned upon us, simplifying arithmetic operations and making subtraction accessible to all. Travel back in time to 1931 when White City, London hosted an exhibition displaying wonders like "The World's Largest Typewriter. " This colossal machine showcased efficiency and innovation while incorporating subtraction capabilities within its mechanisms. Immerse yourself in Mary's Arithmetic Dream; a whimsical journey where numbers come alive through enchanting illustrations. Explore her dreamscape filled with subtractive adventures that ignite curiosity and foster learning. Experience humor intertwined with mathematics through vibrant pages from "The Humours of Cynicus. " Witness how even comedic art finds inspiration in subtraction, adding a touch of amusement to this mathematical concept. Subtraction has evolved over centuries - from humble slide rules etched on tubes to futuristic devices that fit snugly in our pockets. It remains an essential pillar of mathematics, enabling us to solve problems and unravel mysteries using numerical finesse. So embrace this fundamental operation as it continues shaping our world today. Let us celebrate the artistry behind subtraction while marveling at its enduring significance across cultures and generations alike.