ArcaMax

Knowledge

on Jan 13, 2025

Robert Crippen
Ron McNairy
John Young
Thomas Mattingly

John Young. John Watts Young walked on the moon on April 21, 22 and 23 1972 during the Apollo 16 mission.

Science Trivia / January 13, 2025

Nonrenewable Energy Sources. Coal, oil and gas are non-renewable energy sources.

Science Trivia / January 12, 2025

3,666,000,000 Miles. Pluto is the second most massive dwarf planet in the solar system.

Science Trivia / January 12, 2025

Hologram. Holography was invented in 1947.

Science Trivia / January 11, 2025

Planet. The planet formerly known as "Pluto" was named for the Roman god of the underworld.

Science Trivia / January 11, 2025

Pond. Ponds are usually 12-15 feet deep at the center.

Science Trivia / January 10, 2025

Robert Goddard. In 1919, Robert Goddard wrote "A Method of Reaching Extreme Altitudes" and he pioneered use of the liquid-fuel rocket in 1926.