Sylvia Rose
German Peasants' War: Rebellion of Despair
The German Peasants' War (1524-5) is short, bloody and violent, and changes the course of history in Europe. Up to 400,000 peasants rise...
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Sylvia Rose
4 days ago6 min read
Galen: Medical Methods of Ancient Physicians
Galen of Pergamon (c. 129 - 216 AD) is well known in the history of medicine. His extensive writings and theories prevail for over 2000...
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Sylvia Rose
Nov 85 min read
Carl Wilhelm Scheele: Poisonous Chemistry
Carl Wilhelm Scheele (1742 - 1786) is a self-taught German-Swedish chemist whose work has strong impact on chemical sciences of the day....
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Sylvia Rose
Nov 23 min read
Silent Destroyers: Microbial Corrosion of Concrete
Microbial corrosion of concrete by bacteria, fungi and algae destabilize structures of home and environs. While the impact of weather,...
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Sylvia Rose
Nov 18 min read
11 Favorite Drawing Mediums of Artists
Drawing is a creative expression for humans since cave paintings of prehistory. In art, anything making a mark is a drawing tool....
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Sylvia Rose
Oct 303 min read
DIY Perfume Artisans: Top, Middle & Base Notes
DIY perfumes are all about crafting a unique signature scent or giving fragrance as a gift, the benefits of aromatherapy and expression...
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Sylvia Rose
Oct 304 min read
Practical Alchemy of DIY Perfumes & Aromas
The alchemy of perfumes goes back thousands of years. Here are the practical aspects of perfumes in ancient and medieval times, how...
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Sylvia Rose
Oct 303 min read
Alchemy of Perfumes: Scents, Cologne, Rose Water
Perfumes are prized in ancient civilizations such as Mesopotamia, Egypt, India and China. The word “perfume” comes from Latin per fumum ,...
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Sylvia Rose
Oct 295 min read
Renaissance Purgatives & Ancient Remedies
The Renaissance brings a unique approach to medicine. Based on the Four Humors theory of health the Galenic way, purging the body of...
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Sylvia Rose
Oct 296 min read
Amoebae: Microbial Predators on the Move
Amoebas live in nearly all environments of Earth. Unique adaptations and survival strategies of these canny microorganisms make them...
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Sylvia Rose
Oct 265 min read
Jan Baptist van Helmont: Renaissance Medicine
Jan Baptist van Helmont (1580 - 1644) is a Flemish physician, alchemist / chemist and natural philosopher. A disciple of Paracelsus , he...
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Sylvia Rose
Oct 233 min read
Catalase: Unseen Enzymes Essential to Life
Catalase is an enzyme found in carbon life forms, including humans. It's known for its exceptional ability to decompose hydrogen peroxide...
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Sylvia Rose
Oct 175 min read
Bacteria: Unseen Driving Force Behind All Life
Bacteria are responsible for millions of vital processes hidden from our everyday perception. These single-celled organisms are essential...
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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 108 min read
Seven Deadly Diseases of the Renaissance
Some graphics may be disturbing. Disease in the European Renaissance takes a grave toll. Ancient killers include smallpox, malaria,...
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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
Sep 273 min read
Steam Distilling Floral & Herbal Essential Oils
Distilling essential oil can be used for aromatherapy, in cuisine, beauty, healing or to set a mood. Here's the methodology to capture...
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Sylvia Rose
Sep 215 min read
10 Wise Plants & Herbs for the Elixir of Life
The Elixir of Life manifests as potion, tea, powder, water, oil or soluble salts. This mystical creation is said to bestow immortality or...
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Sylvia Rose
Sep 208 min read
Alchemy Processes & Related Astrology Signs
Alchemy and astrology interact on levels of occult arts, principles of science and laws of nature. Just for fun, here are the twelve...
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Sylvia Rose
Sep 134 min read
Zinc (Zn): Essential Metal in Alchemy & Medicine
Zinc (Zn) is an essential metal of life and one of the four components in the Tetrasomia of Maria in alchemy. The 30th element on the...
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