A historian studying ancient astronomy translates 240 astronomical records. If 25% are incomplete, 2/5 of the complete records document planetary motion, and each planetary document contains 32 observations, how many observations are documented? - Portal da Acústica
Title: Unlocking the Stars: How a Historian Deciphers Ancient Astronomy Through 240 Astronomical Records
Title: Unlocking the Stars: How a Historian Deciphers Ancient Astronomy Through 240 Astronomical Records
A historian dedicated to unraveling the mysteries of ancient astronomy recently completed a groundbreaking effort: translating 240 original astronomical records from long-lost manuscripts. This monumental achievement not only preserves a vital piece of human knowledge but also reveals profound insights into how early civilizations understood the cosmos.
Out of the 240 records, 25% were found to be incomplete due to damage or fragmentation. This means 25% of 240—240 × 0.25 = 60 records are missing key information. Subtracting the incomplete entries gives 240 – 60 = 180 complete astronomical records available for detailed study.
Understanding the Context
Of these 180 complete documents, the historian discovered that 2/5 specifically document planetary motion—highlighting the advanced observational and record-keeping skills of ancient astronomers. Calculating the number of planetary motion records:
(2/5) × 180 = 72 records describe planetary movements.
Each of these planetary documents contains 32 observations, systematically detailing celestial positions, cycles, and patterns. To find the total number of documented observations, multiply:
72 × 32 = 2,304 observations recorded across the translated records.
This translation project not only uncovers the meticulous science of ancient stargazers but also demonstrates how careful analysis of historical texts brings lost astronomical wisdom back into light. The total of 2,304 detailed planetary observations stands as a testament to humanity’s enduring fascination with the stars.
For historians, astronomers, and anyone intrigued by how ancient civilizations tracked the heavens, this work bridges time—proving that even 2,304 observations can illuminate the path from past to present.
