Hard To Believe May 2026

: Human stomach acid is strong enough to dissolve a single-edged razor blade in about two hours.

: The Turritopsis dohrnii is a species of jellyfish that can theoretically live forever by reverting to its juvenile polyp stage after reaching maturity. Hard To Believe

: In a 22-year window (1843–1865), it was theoretically possible for a Japanese samurai to send a fax to Abraham Lincoln . : Human stomach acid is strong enough to