ArcaMax

Knowledge

on Jan 5, 2026

Telegraph
Telephone
Telescope
Forceps

Telescope. Griffith Observatory in California opened in 1935.

Science Trivia / January 04, 2026

Okeechobee. The Okeechobee hurricane in 1928 was the first to reach Category 5 in the Atlantic basin.

Science Trivia / January 04, 2026

5 Billion Kilometers. Mars Observer was launched by the U.S. in September 1992.

Science Trivia / January 03, 2026

Valentina Tereshkova. Tereshkova was one of five applicants chosen from 400 applicants.

Science Trivia / January 03, 2026

Animal. Coral gets most of its energy from photosynthetic unicellular algae.

Science Trivia / January 02, 2026

84.01 Earth Years. The rotational period of Uranus is 17.23 hours.

Science Trivia / January 02, 2026

Theory. Scientists use the term "theory" as an explanation of reality that has been thoroughly tested.