Calculates Collection

Advertisement for the Arithmometer, calculating machine, 1862
7125130 Advertisement for the Arithmometer, calculating machine, 1862; (add.info.: Advertisement for the Arithmometer, calculating machine)

Weighing the earth in a pair of scales on a high tower (litho)
8673173 Weighing the earth in a pair of scales on a high tower (litho) by English School, (20th century); Private Collection; (add.info.: How the weight of the earth is measured)

Commonplace workbook kept by William Spink, RN, including mathematical calculations and methods for calculating at sea
7342540 Commonplace workbook kept by William Spink, RN, including mathematical calculations and methods for calculating at sea, 1697-1705 (paper, ink) by Spink

Commonplace workbook kept by William Spink, RN, including mathematical calculations and methods for calculating at sea
7342539 Commonplace workbook kept by William Spink, RN, including mathematical calculations and methods for calculating at sea, 1697-1705 (paper, ink) by Spink

Obstetrical table for determining a baby's delivery date (litho)
8635349 Obstetrical table for determining a baby's delivery date (litho) by American School, (20th century); Private Collection; (add.info)

Modern Wonders, 1938: Weighing the Earth (colour photo)
8659936 Modern Wonders, 1938: Weighing the Earth (colour photo) by English Photographer, (20th century); Private Collection; (add.info.: Weighing the Earth)

Good Day for Battle
ASTROLOGY IN INDIA The court astrologer at Lahore calculates a favourable day on which his master should do battle and lead the Sikhs to victory Date: 1846

Calculator with fingers and face, calculating

Princess Trixie the Highly Educated Horse
Princess Trixie, a Grey 1/2 Arab mare, who was highly educated and travelled the world - here she is advertising (" Grand" ) National Cash Registers, by keeping her accounts in check

Galileo / Telescope / Study
Galileo calculates the magnification of his telescope

SHEPHERD
A French shepherd calculates the south at midnight, from observation of the stars

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Good Day for Battle: Delve into the rich history of calculations, from Pythagoras' theorem to Boethius' philosophical musings. Picture a fierce horse named Princess Trixie, not just a pretty face but also a highly educated mind, calculating complex sums with her hooves. Fast forward to Galileo, peering through his telescope, studying the cosmos, while a shepherd counts his flock with a calculator etched into his staff. Travel back further to the age of exploration, where Ferdinand Magellan, with fingers as his only tools, plotted voyages across uncharted waters. From humble beginnings to modern marvels, calculations have shaped our world, fueling curiosity and discovery.