ArcaMax

Knowledge

on Apr 5, 2025

Chalcedony
Chrysoberyl
Chrysoprase
Corundum

Corundum. Ruby and sapphire are both forms of corundum, with a hardness rating just below a diamond.

Science Trivia / December 14, 2025

Gagarin. Soviet cosmonaut Yuri Gagarin was 27 years old when he flew in space on April 12, 1961.

Science Trivia / December 14, 2025

Organism. An organism is capable of response to stimulus, reproduction, growth, development, and homeostasis.

Science Trivia / December 13, 2025

Fermentation. During fermentation in wine making, yeast interacts with sugars to create ethanol.

Science Trivia / December 13, 2025

Chemical Weathering. Chemical weathering is caused by atmospheric chemicals or those that are biologically produced.

Science Trivia / December 12, 2025

Gasoline. Iran announced in January 2011 that it plans to be gasoline-sufficient by the end of the year.

Science Trivia / December 12, 2025

Freedom 7. Freedom 7 was built by McDonnell Aircraft Corporation.