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

Alchemy through the ages is a science affected by personal spirituality and religion. Rooted in ancient practices, alchemy takes shape in...

Aristotle (384 - 322 BCE) is a Greek philosopher. His contributions span multiple disciplines such as biology, psychology, physics,...

In practical alchemy, mercury II oxide (HgO) is often called the "Red Precipitate," with its compound Mercuric Amidochloride (Hg(NH2)Cl),...

Diana's Tree ( Arbor Diana or Dianae ) is one of the most intriguing creations of alchemy. Its delicate branches of crystallized silver...

Alchemy seeks the magnum opus or great work. This twelve step program comes from the anonymous Ripley Scroll, so called as alchemist...

Reduction is a fundamental aspect of everyday life, from breathing oxygen to powering a phone. Reduction and its counterpart, oxidation ,...

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...

The Magnum Opus or Great Work is the goal of alchemists. From ancient Alexandria and the wisdom of Maria the Prophetess comes a color...

The Book of Comarius is a mysterious tome dedicated to Cleopatra the Divine, or Cleopatra the Alchemist of Alexandria. In it, Comarius, a...

Cleopatra the alchemist is active in Alexandria, Egypt c. 300 AD. She may be contemporary to Zosimos , who mentions her in his writings....

Born in Ireland in 1627, Robert Boyle plays a significant role in the 17th century "scientific revolution". His groundbreaking...

The Angel of Violet Light appears in the tomes of alchemy from the European medieval period onward. For many centuries the Angel drifts...

Johann Rudolf Glauber is a German-Dutch polymath who revolutionizes the scientific world with groundbreaking discoveries and innovative...

Arcanum Duplicatum is known by many names: sulphate of potash, arcanite, potash of sulfur, potassium sulfate. An inorganic compound, it...

Fulminating Gold ( aurum fulminans ) is the first high explosive known, recorded in Western alchemy c. 1585. Sebald Schwaerzer is the...

Oil of Brick is known as Oil of Philosophers by alchemists and Oleum de Lateribus  (Oil on the Sides) by apothecaries. This medicinal and...

Nicolas Flamel (1330 - 1418) is a prosperous scribe shop owner in Paris, France. He marries well and lives an illustrious life. At his...