ArcaMax

Knowledge

on Sep 28, 2025

South America
X Rays
Stethoscope
Penicillin

Penicillin. Time Magazine wrote in 1999 that penicillin "was a discovery that would change the course of history".

Science Trivia / September 28, 2025

Up, Down, Down. The neutron is a baryon and thus has 3 quarks.

Science Trivia / September 27, 2025

Vacuole. Vacuoles store waste products.

Science Trivia / September 27, 2025

Obsessive Compulsive. Cluster C Personality Disorders also includes Avoidant and Dependent Personalities.

Science Trivia / September 26, 2025

200 Miles Per Hour. Peregrine falcons are often called "duck hawks" in North America.

Science Trivia / September 26, 2025

Lunar Eclipse. A lunar eclipse can occur only when the Sun, Earth, and Moon are very closely with the Earth in the middle.

Science Trivia / September 25, 2025

Ultralight. Ultralight aviation was developed during the 1970s and 1980s.