ArcaMax

Knowledge

on Apr 6, 2025

Max Faget
Lee Silver
Deke Slayton
Bob Gilruth

Lee Silver. Lee Silver, a professor at CalTech, served as an instructor to the astronauts of Apollo 13, 15, 16 and 17.

Science Trivia / April 06, 2025

Gamma Rays. Gamma rays are ultra-high frequency light rays created when a nucleus relaxes from an excited state.

Science Trivia / April 05, 2025

Corundum. Ruby and sapphire are both forms of corundum, with a hardness rating just below a diamond.

Science Trivia / April 05, 2025

Ice. Ice is the most abundant of the varying solid phases on the Earth's surface.

Science Trivia / April 04, 2025

The Kangaroo And The Emu. The kangaroo is the national animal of Australia.

Science Trivia / April 04, 2025

Black Widow Spider. Black Widow spiders are found on every continent except Antarctica.

Science Trivia / April 03, 2025

Venus. The temperature on Venus ranges from -50 to 900 degree F.