Sylvia Rose
Hydrogen Peroxide H2O2 Decomposition
Hydrogen peroxide (H2O2) is a basic disinfectant and bleach of many households. If stored too long it will decompose. The decomposition...
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Sylvia Rose
Oct 235 min read
Peracetic Acid: Origin, Reactions, Hazards
Peracetic acid is a remarkable compound with powerful benefits and considerable risks. A colorless liquid with a sharp odor similar to...
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Sylvia Rose
Oct 225 min read
Human Methane: Meet the Microbes of Flatulence
Methane microbes or prokaryotes are among trillions of microorganisms who call humans home. Methane prokaryotes produce colorless,...
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Sylvia Rose
Oct 214 min read
Arsenic Trioxide: Paris Green Paint Pigment & Pesticide
Arsenic trioxide is a toxic compound with a a long and complex history, known at least by the time of the ancient Romans. Here's a look...
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Sylvia Rose
Oct 204 min read
Microbial Alchemy: Fermentation, Digestion, Putrefaction
Alchemy uses natural processes, often driven by microbial forces. Unseen biological entities include bacteria, amoeba and flagellates....
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Sylvia Rose
Oct 194 min read
Microbes: Bacteria, Actinomycetes, Protozoa, Fungi & Viruses
Microbes are invisible and exist everywhere, in air, water and soil. Scientists find microbes living in the charred soil wildfires leave...
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Sylvia Rose
Oct 185 min read
Talc (Magnesium Silicate): Beauty, Art & Industry
Talc or hydrated magnesium silicate is a naturally occurring mineral, primarily composed of magnesium, silicon, and oxygen. With its...
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Sylvia Rose
Oct 176 min read
Paints of the Artist's Palette in Renaissance Europe
Artists of Renaissance Europe cultivate palettes rich in colors sourced from elements both enchanting and lethal. The Renaissance is...
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Sylvia Rose
Oct 174 min read
Gouache Painting: Artist Essentials & Art Tips
Gouache painting has a unique charm and offers versatility for artists and art appreciators. This unctuous type of paint delivers vibrant...
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Sylvia Rose
Oct 173 min read
Bright Common Nails: Composition to Corrosion
Bright common nails in hardware are used in construction, woodworking, and various DIY projects from building to pigment making. Bright...
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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 166 min read
10 Ancient Spices of Trade, Health & Beauty
Spices come from distant lands along ancient trade routes. These commodities bring flavor to food, health and beauty to consumers and...
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Sylvia Rose
Oct 146 min read
Soot & Lampblack: Beauty, Art and Medicine
Soot is as old as fire. A dark, powder formed by incomplete burning of organic matter, it's used for centuries due to its easy...
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Sylvia Rose
Oct 127 min read
Tycho Brahe: Golden Renaissance Astronomer
Tycho Brahe (1546 - 1601) is a Danish Renaissance astronomer and polymath. His observatory Uraniborg is a center of intellect and...
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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 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 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 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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