Methane microbes are among trillions of microorganisms who call humans home. In digestion these prokaryotes create colorless, odorless...

White lead, lead(II) carbonate or PbCO₃, has a long sordid history in art, paint and industry, a major source of white for artists and in...

Circulation is one of many processes of alchemy. The purification of a substance is achieved through circular distillation in a pelican...

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...

Alchemy uses natural processes, often driven by microbial forces. Unseen biological entities include bacteria, amoeba and flagellates....

A separatory funnel is an essential piece of laboratory equipment used in liquid-liquid extractions, allowing alchemists to separate...

Decomposing horse manure is essential in the alchemical process of digestion. A flask of substances is buried in dung. As if by magic the...

Digestion is the alchemical process of applying steady heat to a substance in a flask or container. Digestion can last hours or days. The...

Talc or hydrated magnesium silicate is a naturally occurring mineral, primarily composed of magnesium, silicon, and oxygen. With its...

Carbon steel is an essential material in various industries, renowned for versatility and strength. Uncover the secrets of carbon steel:...

Flowers of sulfur, often termed flowers of brimstone, are crumbly pale yellow powders popular with chemists, botanists, and artisans....

Decay is a fundamental aspect of life cycles. An essential and complex process in the natural world, decay involves breakdown of organic...

Tungsten, also known as wolfram, is a rare and versatile metal. In nature, tungsten is found in ore form, combined with other elements....

Molybdochalkos is a blend of copper and lead. It's the standard metal used in the kerotakis, an alchemical creation attributed to Maria...

Tycho Brahe (1546 - 1601) is a Danish Renaissance astronomer and polymath. His observatory Uraniborg is a center of intellect and...

Prague is an epicenter of medieval and Renaissance Bohemian culture, art and architecture. Capital of today's Czech Republic, Prague has...

Experimenting with rust. Mmm rust. Amazing how many colors it gives out. I'm trying for an earthy gold and a couple other tones. On the...

Nitric acid, called the Queen of Acids or aqua fortis (strong water) is a vital chemical compound with significant importance in fields...

Projection, according to experts of the Renaissance, is the final act of alchemical work once the Philosophers' Stone has been made. The...

Niter or saltpeter (KNO3) is the mineral form of potassium nitrate. A soft substance easy to grind, it creates colorless to white...