Sylvia Rose
Potassium Hydroxide (KOH) Caustic Potash
Potassium Hydroxide, also known as caustic potash, has a history dating back to ancient times. A versatile chemical compound, it's used...
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Sylvia Rose
Oct 135 min read
Fermentation & Rot: Comparing Processes
Fermentation and rot are natural processes. While they may seem synonymous, a closer look reveals the differences between the two....
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Sylvia Rose
Oct 122 min read
Molybdochalkos: Nigredo Black Lead of Maria
Molybdochalkos is a blend of copper and lead. It's the standard metal used in the kerotakis, an alchemical creation attributed to Maria...
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Sylvia Rose
Oct 113 min read
Hildegard von Bingen: Nature, Music & Beer
Hildegard von Bingen is a German Benedictine abbess and polymath often called the Sibyl (Prophetess) of the Rhine. She transcends...
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Sylvia Rose
Oct 116 min read
Women Brewers: Brewing History of Europe
Women have a significant role in brewing through history. Before brewing is industrialized, it's a domestic activity seen as providing...
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Sylvia Rose
Oct 116 min read
Eight Dye Plants & Natural Dyes in History
From vibrant reds extracted from roots to the deep blues synthesized from leaves, plants have abundant natural dyes and also health...
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Sylvia Rose
Oct 104 min read
Prague: Bohemians of the Renaissance
Prague is an epicenter of medieval and Renaissance Bohemian culture, art and architecture. Capital of today's Czech Republic, Prague has...
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Sylvia Rose
Oct 104 min read
5 Syphilis Treatments of European History
Syphilis is a complex disease, leading to unusual and alternative treatments in history. A sexually transmitted disease, syphilis is...
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Sylvia Rose
Oct 94 min read
The Four Medici Popes: Controversial Connections
Four Medici Popes shape history during their reigns: Pope Leo X, Pope Clement VII, Pope Pius IV, and Pope Leo XI. Centered in Florence,...
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Sylvia Rose
Oct 96 min read
Catholic Inquisitions: Chronology & Overview
The Catholic Inquisition is an institution in Christianity from the 12th to 19th century. Its purpose is to identify and eliminate heresy...
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Sylvia Rose
Oct 84 min read
Protestant Reformation of Renaissance Europe
The Protestant Reformation is one of the most significant movements in Western history. It transforms not just the Christian Church but...
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Sylvia Rose
Oct 84 min read
Rise & Fall of the Habsburg Dynasty Europe
The Habsburg Dynasty in history is one of Europe’s most powerful and influential royal families. From origins in the Swiss canton of...
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Sylvia Rose
Oct 74 min read
Nitric Acid: Aqua Fortis the Acid Queen
Nitric acid, called the Queen of Acids or aqua fortis (strong water) is a vital chemical compound with significant importance in fields...
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Sylvia Rose
Oct 74 min read
Thirty Years' War: Conflict, Antagonists, and Impact on Society
The Thirty Years' War (1618 - 48) is a major factor in the collapse of the European Renaissance and devastates a continent for three...
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Sylvia Rose
Oct 77 min read
Art of Egg Tempera: Paint Like the Old Masters
Egg tempera painting is beloved for its luminous quality and durability. This method uses egg yolk as a binding agent for pigments, and...
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Sylvia Rose
Oct 45 min read
Valerian: Natural Health & Essential Oils
Valerian ( Valeriana officinalis ) is known for its calming properties. It's a prominent plant in natural health and herbal medicine....
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Sylvia Rose
Oct 23 min read
Tartrate Crystals: Secrets of Tartaric Acid
Tartrate crystals appear on the bottom of a wine glass or in a bottle of grape juice, created by a reaction of tartaric acid. Reference...
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Sylvia Rose
Oct 22 min read
Red & White Tartar: Wine Salts of Alchemy
Red and white tartar are ingredients used by ancients and yet today. Alchemists have great interest in salts, waters, spirits and...
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Sylvia Rose
Oct 14 min read
Ammonia: Formation, Hazards & Reactions
Ammonia is a simple yet mysterious versatile compound vital to life on Earth. Explore its formation, historical significance, potential...
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Sylvia Rose
Oct 14 min read
Spirit of Wine of the Wise: Alchemy Recipe
Spirit of wine, or spirits of wine, is a common alchemical ingredient in medical remedies and recipes of chemical transformation. This...
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