ArcaMax

Knowledge

on Sep 21, 2025

Apollo 13
Apollo 15
Apollo 10
Apollo 11

Apollo 13. NASA called the Apollo 13 mission a "successful failure".

Science Trivia / September 20, 2025

Timber Rattlesnake. The timber rattler was the symbol of the first Continental Navy in the First Navy Jack.

Science Trivia / September 20, 2025

273.15. The Kelvin scale is named for William Thomson, 1st Baron Kelvin, a physicist in Northern Ireland.

Science Trivia / September 19, 2025

7.5 Volts. The voltage of a AA battery varies, depending on the cell chemistry.

Science Trivia / September 19, 2025

Condensation. Condensation converts vapor to a liquid.

Science Trivia / September 18, 2025

Three-Fourths. The world's oceans contain about 326 million trillion gallons of water.

Science Trivia / September 18, 2025

The United States. The Pennsylvania Period is noted by the abundance of coal, especially in the Appalachians of the United States.