{"product_id":"그래서-이런-수학이-생겼대요","title":"So That's How Math Came to Be","description":"Description\n\nChapter 1. The Great Cultural Heritage of Humanity: Numbers\nLong ago, people couldn't count numbers - Number sense…12\nThey used pebbles to represent numbers - One-to-one correspondence…14\nThey simplified how to express large numbers - Sumerian numerals…18\nCounting was born from using fingers - Base 10 (Decimal system)…20\nIt's convenient to count in groups of five - Base 5 (Quinary system)…22\nThe Babylonians used a base-60 system - Base 60 (Sexagesimal system)…24\nThey were created based on the shapes of objects - Egyptian hieroglyphic numerals…26\nWas it really devil's magic? - Hindu-Arabic numerals…28\nThe birth of the greatest number ever - The number 0…32\n1000 in Korean is \"jeumeun\" - Korean words for numbers…34\n\nChapter 2. This Is How Calculation Developed\nBorn from dividing objects - Fractions…38\nComplex equations were expressed with symbols - The birth of mathematical symbols…40\nThe four arithmetic operations were shown with symbols - The birth of +, -, ×, ÷…42\nA printer decided on it - The unknown \"x\"…44\nThe incredibly multiplying number of wheat grains - Exponents (Powers)…46\nIt was created to easily calculate interest - Decimals…48\nAdding 1 to 100 in the blink of an eye - Gauss's addition method…50\nSon, study this in secret - The multiplication table (Gugudan)…52\nPeople of Goryeo also calculated fractions - Fractions in The Nine Chapters on the Mathematical Art…54\nHow many bundles of rice should be given? - Equations in The Nine Chapters on the Mathematical Art…56\nThe convenient calculator our ancestors used - Counting rods (Sangaji)…58\nThe first mechanical calculator was born - Pascaline…60\n\nChapter 3. The Amazing World of Shapes\nIt arose from newly dividing land - Geometry…64\nThey measured the distance between land and ships using triangles - Congruence of triangles…66\nThey measured the height of the pyramids with a single stick - Triangles and the properties of proportion…70\nThey proved the properties of right triangles - The Pythagorean theorem…74\nThe East also had its own Pythagorean theorem - The Gougu theorem (Gou-Gu-Xian theorem)…78\nThe secret hidden in the star within a regular pentagon - The golden ratio…80\nThe greatest math book in history - Euclid's Elements…84\nDon't ruin my circles - Archimedes and the circle…86\nArchimedes calculates pi for the first time - Pi I…88\nMathematicians who calculated pi - Pi II…90\nMeasuring the Earth's circumference using circles and proportion - Circles and proportion…92\nProving the sum of a triangle's interior angles with colored paper - The sum of a triangle's interior angles…94\nHow to claim the largest piece of land? - The secret of circles…96\nWhy do bees build hexagonal honeycombs? - The secret of the regular hexagon…98\nBuild an altar to Apollo with double the volume - The volume of a cube…100\n\nChapter 4. Exciting Stories of Measurement, Probability, and Statistics\nThe human body is the oldest measuring tape - The body and units of measurement…104\nQin Shi Huang unified weights and measures along with China - China's system of weights and measures…106\nThe secret inspector's essential tool, the yucheok - The yucheok (standard measuring rod)…108\nWe must unify the world's units into one - The metric system…110\nEureka! Eureka! - The volume of objects…112\nDo you produce as much waste as you eat? - Measuring body weight…114\nIt began with gambling - Probability…116\nWhy do \"geol\" and \"gae\" come up so often in yutnori? - Number of cases and probability…118\nIt arose to solve social problems - Statistics…122\n\nChapter 5. Fun Math Stories\nHow to escape a labyrinth - Mazes and math…126\nCrossing the bridges of Königsberg - Drawing without lifting the pen (Eulerian path)…130\nThey predicted the date of a solar eclipse - Astronomy and math…132\nThey created a musical scale by listening to hammer sounds - Music and math…134\nThe race between Achilles and the tortoise - Zeno's paradox…136\n\"I am already married to the truth\" - The first female mathematician…138\nHow many rabbits will there be after a year? - The Fibonacci sequence…140\n\"Those who fail the math exam will be punished\" - King Sejong and mathematics…144\nWould you like to try solving this problem? - A mathematical duel…146\nHow many soldiers were left? - Common multiples and the least common multiple…150\nHow many fish are there? - The properties of proportion…154\nWelcome to Hilbert's Hotel - Infinity…156\nCoordinates were born from watching a fly - Coordinates…158\nNewton's great discovery - Calculus I…160\nThe fight between two great mathematicians - Calculus II…162\nIf this tower is completely moved, the world will end - The Tower of Hanoi…164\nMagic","brand":"IBOOKPARK","offers":[{"title":"Default Title","offer_id":49624285511908,"sku":"01302024981","price":17.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0831\/9788\/6692\/files\/9788962225266.jpg?v=1786426395","url":"https:\/\/ibookpark.com\/en\/products\/%ea%b7%b8%eb%9e%98%ec%84%9c-%ec%9d%b4%eb%9f%b0-%ec%88%98%ed%95%99%ec%9d%b4-%ec%83%9d%ea%b2%bc%eb%8c%80%ec%9a%94","provider":"IBOOKPARK","version":"1.0","type":"link"}