Health & Medicine 2/17

Sublimation & the Aludel: Medieval Alchemy

Sylvia Rose

Dec 15, 20245 min read

Sublimation & the Aludel: Medieval Alchemy

Sublimation is a process of refinement, purification or extraction of specific elements. The aludel, a unique alchemical apparatus, is...

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Spores & Yeast: Saccharomyces cerevisiae

Sylvia Rose

Dec 14, 20246 min read

Spores & Yeast: Saccharomyces cerevisiae

Yeast spores appear as perfect spheres, found in diverse environments. Saccharomyces cerevisiae is a common spore-forming yeast, known...

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Silica, Silicon & Silicone: Differences & Similarities

Sylvia Rose

Dec 12, 20245 min read

Silica, Silicon & Silicone: Differences & Similarities

Silica, silicon, and silicone refer to related but distinct substances with specific properties, applications, and origins. Silica is...

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Bdellovibrio: Lifestyles of Predatory Bacteria

Sylvia Rose

Dec 11, 20245 min read

Bdellovibrio: Lifestyles of Predatory Bacteria

Bdellovibrio predatory bacteria are gram-negative , obligate aerobic bacteria who hunt other gram-negative bacteria to feed on their...

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Sylvia Rose

Dec 11, 20245 min read

Brownian Motion: Physics & Phenomena

Brownian motion vividly illustrates the appearance of chaos at a microscopic level. This phenomenon, first observed by botanist Robert...

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Difference Between Gram-Positive & Gram-Negative Bacteria

Sylvia Rose

Dec 9, 20243 min read

Difference Between Gram-Positive & Gram-Negative Bacteria

Differences between Gram-negative and Gram-positive bacteria are fairly straightforward, related to cell membrane structure. Knowing...

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Yeast: Potent Power of the Active Microworld

Sylvia Rose

Dec 8, 20246 min read

Yeast: Potent Power of the Active Microworld

Yeast is a vital component of the microbial world, involved in diverse ecological processes. This amazing fungal organism is essential...

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Stylonychia: Wonderful World of Ciliates

Sylvia Rose

Dec 4, 20245 min read

Stylonychia: Wonderful World of Ciliates

Stylonychia is a fascinating genus of ciliates, a diverse group of active single-celled organisms living in both freshwater and marine...

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Zaffre: Vintage Cobalt Blue Glass & Artists' Pigment

Sylvia Rose

Nov 27, 20246 min read

Zaffre: Vintage Cobalt Blue Glass & Artists' Pigment

Zaffre (zaffer) is a vibrant deep blue pigment developed by alchemists, major pigment creators, by c. 1550 AD. Characterized by brilliant...

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Flowers of Antimony: Pure Medieval Purgative

Sylvia Rose

Nov 25, 20244 min read

Flowers of Antimony: Pure Medieval Purgative

Flowers of antimony are a purified form of antimony trioxide (Sb2O3). Created through sublimation, they have chemical and medical...

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Ammonium Carbonate: Sal Volatile Smelling Salts

Sylvia Rose

Nov 25, 20245 min read

Ammonium Carbonate: Sal Volatile Smelling Salts

Ammonium carbonate [NH4]2CO3 is the main ingredient in Victorian smelling salts. Also called baker's ammonia, sal volatile , salt of...

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Glass of Antimony: Renaissance Purgatives

Sylvia Rose

Nov 24, 20244 min read

Glass of Antimony: Renaissance Purgatives

Glass of antimony , or vitrum antimonii , gives warm yellow or red hues. As Sb2O3, its use in alchemy is largely medicinal, one of many...

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Faust: Fact & Fiction German Renaissance

Sylvia Rose

Nov 24, 20246 min read

Faust: Fact & Fiction German Renaissance

Johann Georg Faust or Doctor Faustus is an alchemist, physician and magician, a cryptic figure of the German Renaissance. Perceived by...

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Uric Acid: Inner Works of the Human Body

Sylvia Rose

Nov 21, 20244 min read

Uric Acid: Inner Works of the Human Body

Uric acid is formed in humans during breakdown of purines. Purines are naturally produced in the body, and found in some foods and...

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Uric Acid: Kidney Stones & Peeing on Plants

Sylvia Rose

Nov 21, 20243 min read

Uric Acid: Kidney Stones & Peeing on Plants

Uric acid is a factor in conditions like gout and kidney stones. It's also essential to the animal body, plants and the rest of the...

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Sylvia Rose

Nov 20, 20245 min read

Urea: Body Waste & Organic Health

Urea CO(NH2)2, also known as carbamide, is an essential organic compound and waste product in urine. Formed in the liver, urea is an...

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S. pasteurii: Calcium Eating Limestone-Making Bacteria

Sylvia Rose

Nov 20, 20245 min read

S. pasteurii: Calcium Eating Limestone-Making Bacteria

Sporosarcina pasteurii is a gram-positive bacterium with the extraordinary ability to precipitate calcite and solidify sand when exposed...

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Calcium (Ca): Earth Metal of Structure & Strength

Sylvia Rose

Nov 20, 20245 min read

Calcium (Ca): Earth Metal of Structure & Strength

Calcium (Ca) is a vital element in life and health on Earth. A silvery white metal, calcium is a strong builder, from bone structure to...

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Galen: Medical Methods of Ancient Physicians

Sylvia Rose

Nov 19, 20246 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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How to Cultivate Green Algae for Science & Health

Sylvia Rose

Nov 15, 20247 min read

How to Cultivate Green Algae for Science & Health

Green algae are simple life forms with amazing impact on the environments of Earth. Algae can be grown at home for microscopy, biology...

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