Mercury: Did you mean...?

The thermometer was invented in the mid-17th century during the Scientific Revolution when scientists began to search for an accurate instrument to measure a wide range of temperatures using a scale that could be compared with other readings...

The scientific method was first used during the Scientific Revolution (1500-1700). The method combined theoretical knowledge such as mathematics with practical experimentation using scientific instruments, results analysis and comparisons...

Nabu (sometimes known as Tutu) is the Babylonian god of wisdom, learning, prophecy, scribes, and writing and was also responsible for the abundant harvest and all growing things. His name means "the Announcer" which refers to his prophetic...

Gustav Holst (1874-1934) was a British composer of Swedish origin most famous for his dramatic orchestral suite The Planets, first performed in public in 1919. Holst also composed several operas, wrote sacred choral works such as The Hymn...

Alchemy is an ancient practice aimed at recreating precious substances using recipes and transformative materials such as the philosopher's stone. Alchemists believed that materials like gold, silver, gems, and purple dye could be recreated...

Hermes was the ancient Greek god of trade, wealth, luck, fertility, animal husbandry, sleep, language, thieves, and travel. One of the cleverest and most mischievous of the 12 Olympian gods, Hermes was their herald and messenger. In that...

Nicolaus Copernicus (1473-1543 CE) was a Polish astronomer who famously proposed that the Earth and other planets revolved around the Sun in a heliocentric system and not, as then widely thought, in a geocentric system where the Earth is...

Claudius Ptolemy (c. 100 to c. 170 CE) was an Alexandrian mathematician, astronomer, and geographer. His works survived antiquity and the Middle Ages intact, and his theories, particularly on a geocentric model of the universe with planets...

To the ancient Romans, everything was imbued with a divine spirit (numen, plural: numina) which gave it life. Even supposedly inanimate objects like rocks and trees possessed a numen, a belief which no doubt grew out of the early religious...

According to the Bible, Nehushtan was a metal serpent mounted on a staff that Moses had made, by God's command, to cure the Israelites of snake bites while wandering in the desert. The symbol of snakes on a staff or pole is a motif that is...