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"https://codexery.com/classical-philosophy-rhetoric/e/part-1/metaphysics-aristotle/": {"t": "metaphysics-aristotle", "s": ""}, "https://codexery.com/named-stars-part-4/e/part-1/sun/": {"t": "sun", "s": ""}, "https://codexery.com/historical-figures/e/notable/ibn-al-haytham/": {"t": "Ibn al-Haytham", "s": "Father of modern optics and pioneer of the scientific method"}, "https://codexery.com/materials-and-states-of-matter/e/part-1/solid/": {"t": "solid", "s": ""}, "https://codexery.com/historical-figures/e/scientists/roger-bacon/": {"t": "Roger Bacon", "s": "Medieval English polymath and early advocate of empiricism"}, "https://codexery.com/historical-figures/e/notable/dante-alighieri/": {"t": "Dante Alighieri", "s": "Italian poet who wrote the Divine Comedy in the vernacular."}, "https://codexery.com/genesis-creation-narrative/e/part-1/firmament/": {"t": "firmament", "s": ""}, "https://codexery.com/christian-sacred-texts/e/part-1/book-of-genesis/": {"t": "book-of-genesis", "s": ""}, 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"https://codexery.com/astronomy-space/e/part-1/lagrange-point/": {"t": "lagrange-point", "s": ""}, "https://codexery.com/planets-and-dwarf-planets/e/part-1/fictional-planets-of-the-solar-system/": {"t": "Fictional planets of the Solar System", "s": "Hypothetical planets persist in fiction beyond scientific refutation."}, "https://codexery.com/philosophical-movements-and-schools/e/part-1/ancient-greek-philosophy/": {"t": "Ancient Greek philosophy", "s": "Ancient Greek philosophy shaped Western thought from its 6th century BCE origins."}, "https://codexery.com/missions-to-the-sun/e/part-1/stereo/": {"t": "stereo", "s": ""}, "https://codexery.com/narrative-forms-and-devices/e/part-1/satire/": {"t": "satire", "s": ""}, "/e/ancient-greek-astronomy/equant/": {"t": "Equant", "s": "Mathematical point used to explain planetary speed variations."}, "https://codexery.com/ancient-mysteries/e/part-1/the-antikythera-mechanism/": {"t": "the-antikythera-mechanism", "s": ""}, "https://codexery.com/planets-and-dwarf-planets/e/part-1/inferior-and-superior-planets/": {"t": "Inferior and superior planets", "s": "Terms distinguishing planets by orbit size relative to Earth."}, "https://codexery.com/optics-and-color/e/part-1/optics/": {"t": "Optics", "s": "Branch of physics studying light and electromagnetic radiation.", "i": "https://codexery.com/optics-and-color/img/part-1/optics.webp", "c": "OpticalSystem · Public domain"}, "https://codexery.com/historical-figures/e/notable/isaac-newton/": {"t": "Isaac Newton", "s": "English polymath who formulated laws of motion and universal gravitation."}, "https://codexery.com/electromagnetism-and-waves/e/part-1/frequency/": {"t": "frequency", "s": ""}, "https://codexery.com/philosophers-and-logicians/e/part-1/plotinus/": {"t": "Plotinus", "s": "Founder of Neoplatonism and philosopher of the One."}, "https://codexery.com/islamic-scholars-and-sufi-mystics/e/part-1/al-farabi/": {"t": "al-farabi", "s": ""}, 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circle."}, "https://codexery.com/european-scientific-pioneers/e/part-1/tycho-brahe/": {"t": "tycho-brahe", "s": ""}, "https://codexery.com/astronomy-space/e/part-1/lunar-eclipse/": {"t": "lunar-eclipse", "s": ""}, "https://codexery.com/orbits-and-celestial-mechanics/e/part-1/eclipse-cycle/": {"t": "Eclipse cycle", "s": "Intervals after which eclipses repeat under similar conditions.", "i": "https://codexery.com/orbits-and-celestial-mechanics/img/part-1/eclipse-cycle.webp", "c": "CTIO/NOIRLab/NSF/AURA/P. 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"First major mathematician-astronomer of classical Indian science."}, "https://codexery.com/classical-mechanics/e/part-1/gravity/": {"t": "gravity", "s": ""}, "https://codexery.com/astronomical-catalogues/e/part-1/astronomical-almanac/": {"t": "astronomical-almanac", "s": ""}, "https://codexery.com/cities/e/ancient-cities/ephesus/": {"t": "Ephesus", "s": "Ancient Greek city on the Ionian coast, home to the Temple of Artemis and a UNESCO World Heritage Site."}, "https://codexery.com/stato-da-m-r/e/part-1/nafplio/": {"t": "Nafplio", "s": "First capital of modern Greece and historic seaport."}, "https://codexery.com/astronomical-concepts-and-techniques/e/part-1/spherical-astronomy/": {"t": "spherical-astronomy", "s": ""}, "/e/ancient-greek-astronomy/exeligmos/": {"t": "Exeligmos", "s": "A 54-year, 33-day cycle for predicting similar eclipses."}, "https://codexery.com/orbits-and-celestial-mechanics/e/part-1/equinox/": {"t": "Equinox", "s": "Twice-yearly moment when day and night are nearly equal worldwide.", "i": "https://codexery.com/orbits-and-celestial-mechanics/img/part-1/equinox.webp", "c": "江戸村のとくぞう · CC0"}, "https://codexery.com/classical-and-fluid-mechanics/e/part-1/precession/": {"t": "precession", "s": ""}, "https://codexery.com/historical-figures/e/notable/cicero/": {"t": "Cicero", "s": "Roman statesman, orator, and philosopher who shaped Latin rhetoric and thought."}, "https://codexery.com/historical-figures/e/scientists/josephus/": {"t": "Josephus", "s": "Roman–Jewish historian and military leader, author of The Jewish War and Antiquities of the Jews."}, "https://codexery.com/radio-propagation-part-2/e/part-1/voyager-1/": {"t": "voyager-1", "s": ""}, "https://codexery.com/astronomy-space/e/part-1/oort-cloud/": {"t": "oort-cloud", "s": ""}, "https://codexery.com/branches-of-christianity/e/part-1/catholic-church/": {"t": "catholic-church", "s": ""}, "https://codexery.com/astronomers-and-astrophysicists/e/part-1/william-herschel/": {"t": "william-herschel", "s": ""}, "https://codexery.com/astronomers-and-cosmologists/e/part-1/friedrich-wilhelm-bessel/": {"t": "friedrich-wilhelm-bessel", "s": ""}, "https://codexery.com/stars-and-stellar-objects/e/part-1/barycenter-astronomy/": {"t": "Barycenter (astronomy)", "s": "Dynamical point representing the center of mass of orbiting bodies."}, "https://codexery.com/planets-stellar-astronomy/e/part-1/planetary-system/": {"t": "Planetary system", "s": "A star's family of orbiting worlds and debris."}, "/e/ancient-greek-astronomy/ancient-greek-astronomy/": {"t": "Ancient Greek astronomy", "s": "Ancient Greek astronomy: from flat Earth to heliocentrism, the foundations of Western stargazing."}, "https://codexery.com/orbits-and-celestial-mechanics/e/part-1/earth-s-orbit/": {"t": "Earth's orbit", "s": "Earth's elliptical orbit around the Sun defines the year and seasons."}, "/e/ancient-greek-astronomy/counter-earth/": {"t": "Counter-Earth", "s": "Hypothetical planet opposite Earth, proposed by Philolaus."}, "https://codexery.com/historical-figures/e/notable/archimedes/": {"t": "Archimedes", "s": "Ancient Greek mathematician and inventor of Syracuse."}, "/e/ancient-greek-astronomy/the-sand-reckoner/": {"t": "The Sand Reckoner", "s": "Archimedes devised a system to name and calculate extremely large numbers."}, "https://codexery.com/astrophotography-part-2/e/part-1/telescope/": {"t": "telescope", "s": ""}, "https://codexery.com/historical-figures/e/scientists/plutarch/": {"t": "Plutarch", "s": "Greek and Roman philosopher, historian, and priest of Apollo"}, "https://codexery.com/pre-columbian-empires/e/part-1/seleucid-empire/": {"t": "Seleucid Empire", "s": "Greek state in West Asia founded by Seleucus I Nicator in 312 BC, annexed by the Roman Republic in 63 BC.", "i": "https://codexery.com/pre-columbian-empires/img/part-1/seleucid-empire.webp", "c": "via Wikipedia: Seleucid Empire · see source"}, 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"potential-energy", "s": ""}, "https://codexery.com/particle-and-nuclear-physics/e/part-1/radioactive-decay/": {"t": "Radioactive decay", "s": "Unstable atomic nuclei lose energy by emitting radiation."}, "https://codexery.com/geology-earth-science/e/part-1/volcano/": {"t": "volcano", "s": ""}, "https://codexery.com/geology-earth-science/e/part-1/impact-crater/": {"t": "impact-crater", "s": ""}, "https://codexery.com/geology/e/part-1/erosion/": {"t": "erosion", "s": ""}, "https://codexery.com/meteorology/e/part-1/weather/": {"t": "weather", "s": ""}, "https://codexery.com/ancient-empires/e/part-1/achaemenid-empire/": {"t": "achaemenid-empire", "s": ""}, "https://codexery.com/historical-figures/e/notable/c-s-lewis/": {"t": "C. 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