زیبایی و سلامت

فرهنگ و تاریخ

غذا و نوشیدنی

مهندسی معکوس

علوم

۶۴۰ نقشه موجود است • ۱۱ زیردسته‌بندی

مرور زیردسته‌بندی‌ها

نقشه‌ها (۶۴۰)

Renaissance (1400–1600)

Renaissance (1400–1600)

Renaissance (1400–1600)

Renaissance (1400–1600)

توسط Charlie

توسط Charlie

توسط Charlie

توسط Charlie

توسط Charlie

توسط Charlie

علوم

مرور زیردسته‌بندی‌ها

کشاورزی

باستان‌شناسی

محاسباتی

نجوم

زیست‌شناسی

شیمی

مهندسی

فیزیک

پزشکی

زمین شناسی

Mathematics

نقشه‌ها (۶۴۰)

Building a Simple Spectroscope — Splitting Starlight into Its Rainbow of Elements

Building a Newtonian Reflecting Telescope — Mirrors Instead of Lenses

Building a Celestial Globe — Mapping the Stars on a Sphere

Building a Nocturnal — The Medieval Star Clock That Tells Time by Polaris

Using a Viking Sunstone — Navigating by Polarized Skylight with Iceland Spar

Preparing a Viking Sunstone — Selecting and Cleaving Optical Calcite for Navigation

Building a Mural Quadrant — The Wall-Mounted Instrument for Precise Star Positions

Building a Galilean Telescope — The Instrument That Changed Our View of the Universe

Building a Copernican Orrery — A Mechanical Model of the Heliocentric Solar System

Building a Cross-Staff — The Medieval Navigator's Angle-Measuring Instrument

Building a Brass Astrolabe — The Islamic Golden Age Instrument That Mapped the Sky

Building a Chinese Armillary Sphere — The Bronze Instrument That Mapped the Heavens

ساخت شوره از خاکستر چوب — قلیایی که صابون، دباغی و رنگ آمیزی را باز کرد

Striking Fire with Flint and Steel — The Iron Age Upgrade to Fire Starting

Making a Stone Hoe — The First Agricultural Tool

Making Bakelite — The First Fully Synthetic Plastic That Launched the Age of Polymers

Synthesising Aspirin — The Reaction That Founded Modern Pharmaceuticals

Making Celluloid — The First Synthetic Plastic That Changed Everything

Making Nitrocellulose (Guncotton) — The Nitration That Launched Smokeless Powder and Plastics

Vulcanizing Rubber with Sulfur — The Accidental Discovery That Put Tyres on the Road