Chemistry

Learn about chemistry, the study of matter and its reactions. Find projects, study notes, periodic tables, and worked example problems.

Meth Lab Trash
Transportable laboratories known as mobile drug labs or rolling meth labs are used to synthesize the stimulant methamphetamine. The reason the lab is mobile is to evade detection. Meth labs release toxic vapors and produce a significant amount of trash, so having one in a fixed location makes it easier […]

What a Meth Lab Smells Like

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Earth Alchemy Symbol
Alchemy is the philosophy and natural science that predates the modern science of chemistry. The word “alchemy” comes from the Arabic word al-kimia. Al kimia is the name of the ancient Egyptian process used to make the Philospher’s Stone or Elixir. Originally, kimia came from the Coptic work khem, which […]

Alchemy Symbols and Their Meanings

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The 'squared circle' or 'squaring the circle' is a 17th century alchemical glyph or symbol for the creation of the Philosopher's Stone. The Philosopher's Stone was supposed to be able to transmute base metals into gold and perhaps be an elixir of life.
Alchemy Definition Several definitions of alchemy exist. Originally, alchemy was an ancient tradition of sacred chemistry used to discern the spiritual and temporal nature of reality, its structure, laws, and functions. Alchemy is often considered a predecessor to the modern science of chemistry. The word alchemy comes from the Arabic […]

What Is Alchemy? Definition

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In addition to the prestige of winning an event at the Olympics, the victor receives a gold medal. At one time, Olympic gold medals were real solid gold. However, the last time a solid gold medal was awarded was at the 1912 Stockholm Olympics. Modern Olympic gold medals are sterling […]

Are Olympic Gold Medals Real Gold?

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