ArcaMax

Knowledge

on Mar 25, 2026

Topaz
Opal
Fluorite
Corundum

Opal. Since water is part of the opal's chemical formula, exposing it to water makes it weak and subject to chipping.

Science Trivia / March 25, 2026

Bathyscaphe. A bathyscaphe is suspended below a float, rather than from a surface cable.

Science Trivia / March 24, 2026

Velocity. In physics, velocity is defined as the rate of change of displacement with time.

Science Trivia / March 24, 2026

It's Likely Caused By Humans. Average global temperature are expected to increased b 1.5 degree C by the end of the 21st century.

Science Trivia / March 23, 2026

Heat. Infrared light is between the visible and microwave portions of the electromagnetic spectrum.

Science Trivia / March 23, 2026

Spiral. Edwin Hubble first described a spiral galaxy in "The Realm", his 1936 work.

Science Trivia / March 22, 2026

Technology. Technology employs tools, knowledge, techniques and systems to solve problems.